From 77261ac56527a684f8b338e17a8e26e5166ef55a Mon Sep 17 00:00:00 2001 From: newt0n Date: Tue, 11 Oct 2016 12:47:24 +0800 Subject: [PATCH] =?UTF-8?q?+=20=E5=AE=8C=E6=88=90=20711=20=E5=88=B0=201318?= =?UTF-8?q?=20=E8=A1=8C=E7=BF=BB=E8=AF=91?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- README-cn.md | 970 +++++++++++++++++++++++++-------------------------- 1 file changed, 485 insertions(+), 485 deletions(-) diff --git a/README-cn.md b/README-cn.md index 2e6a941..56f1ee8 100644 --- a/README-cn.md +++ b/README-cn.md @@ -51,7 +51,7 @@ sometimes word-for-word in Google's coaching notes. - [Graphs](#graphs) - [Even More Knowledge](#even-more-knowledge) - [Recursion](#recursion) - - [Dynamic Programming](#dynamic-programming) + - [动态规划](#dynamic-programming) - [Combinatorics (n choose k) & Probability](#combinatorics-n-choose-k--probability) - [NP, NP-Complete and Approximation Algorithms](#np-np-complete-and-approximation-algorithms) - [Caches](#caches) @@ -711,611 +711,611 @@ Write code on a whiteboard, not a computer. Test with some sample inputs. Then t ## Sorting - [ ] Notes: - - Implement sorts & know best case/worst case, average complexity of each: - - no bubble sort - it's terrible - O(n^2), except when n <= 16 - - [ ] stability in sorting algorithms ("Is Quicksort stable?") - - [Sorting Algorithm Stability](https://en.wikipedia.org/wiki/Sorting_algorithm#Stability) - - [Stability In Sorting Algorithms](http://stackoverflow.com/questions/1517793/stability-in-sorting-algorithms) - - [Stability In Sorting Algorithms](http://www.geeksforgeeks.org/stability-in-sorting-algorithms/) - - [Sorting Algorithms - Stability](http://homepages.math.uic.edu/~leon/cs-mcs401-s08/handouts/stability.pdf) - - [ ] Which algorithms can be used on linked lists? Which on arrays? Which on both? - - I wouldn't recommend sorting a linked list, but merge sort is doable. - - [Merge Sort For Linked List](http://www.geeksforgeeks.org/merge-sort-for-linked-list/) + - 实现各种排序 & 知道每种排序的最坏、最好和平均的复杂度分别是什么场景: + - 不要用冒泡排序 - 大多数情况下效率感人 - 时间复杂度 O(n^2), 除非 n <= 16 + - [ ] 排序算法的稳定性 ("快排是稳定的么?") + - [排序算法的稳定性](https://en.wikipedia.org/wiki/Sorting_algorithm#Stability) + - [排序算法的稳定性](http://stackoverflow.com/questions/1517793/stability-in-sorting-algorithms) + - [排序算法的稳定性](http://stackoverflow.com/questions/1517793/stability-in-sorting-algorithms) + - [排序算法的稳定性](http://www.geeksforgeeks.org/stability-in-sorting-algorithms/) + - [排序算法 - 稳定性](http://homepages.math.uic.edu/~leon/cs-mcs401-s08/handouts/stability.pdf) + - [ ] 哪种排序算法可以用链表？哪种用数组？哪种两者都可？ + - 并不推荐对一个链表排序，但归并排序是可行的. + - [链表的归并排序](http://www.geeksforgeeks.org/merge-sort-for-linked-list/) -- For heapsort, see Heap data structure above. Heap sort is great, but not stable. +- 关于堆排序，请查看前文堆的数据结构部分。堆排序很强大，不过是非稳定排序。 -- [ ] [Bubble Sort (video)](https://www.youtube.com/watch?v=P00xJgWzz2c&index=1&list=PL89B61F78B552C1AB) -- [ ] [Analyzing Bubble Sort (video)](https://www.youtube.com/watch?v=ni_zk257Nqo&index=7&list=PL89B61F78B552C1AB) -- [ ] [Insertion Sort, Merge Sort (video)](https://www.youtube.com/watch?v=Kg4bqzAqRBM&index=3&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb) -- [ ] [Insertion Sort (video)](https://www.youtube.com/watch?v=c4BRHC7kTaQ&index=2&list=PL89B61F78B552C1AB) -- [ ] [Merge Sort (video)](https://www.youtube.com/watch?v=GCae1WNvnZM&index=3&list=PL89B61F78B552C1AB) -- [ ] [Quicksort (video)](https://www.youtube.com/watch?v=y_G9BkAm6B8&index=4&list=PL89B61F78B552C1AB) -- [ ] [Selection Sort (video)](https://www.youtube.com/watch?v=6nDMgr0-Yyo&index=8&list=PL89B61F78B552C1AB) +- [ ] [冒泡排序 (video)](https://www.youtube.com/watch?v=P00xJgWzz2c&index=1&list=PL89B61F78B552C1AB) +- [ ] [冒泡排序分析 (video)](https://www.youtube.com/watch?v=ni_zk257Nqo&index=7&list=PL89B61F78B552C1AB) +- [ ] [插入排序 & 归并排序 (video)](https://www.youtube.com/watch?v=Kg4bqzAqRBM&index=3&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb) +- [ ] [插入排序 (video)](https://www.youtube.com/watch?v=c4BRHC7kTaQ&index=2&list=PL89B61F78B552C1AB) +- [ ] [归并排序 (video)](https://www.youtube.com/watch?v=GCae1WNvnZM&index=3&list=PL89B61F78B552C1AB) +- [ ] [快排 (video)](https://www.youtube.com/watch?v=y_G9BkAm6B8&index=4&list=PL89B61F78B552C1AB) +- [ ] [选择排序 (video)](https://www.youtube.com/watch?v=6nDMgr0-Yyo&index=8&list=PL89B61F78B552C1AB) -- [ ] Stanford lectures on sorting: +- [ ] 斯坦福大学关于排序算法的视频: - [ ] [Lecture 15 | Programming Abstractions (video)](https://www.youtube.com/watch?v=ENp00xylP7c&index=15&list=PLFE6E58F856038C69) - [ ] [Lecture 16 | Programming Abstractions (video)](https://www.youtube.com/watch?v=y4M9IVgrVKo&index=16&list=PLFE6E58F856038C69) -- [ ] Shai Simonson, [Aduni.org](http://www.aduni.org/): - - [ ] [Algorithms - Sorting - Lecture 2 (video)](https://www.youtube.com/watch?v=odNJmw5TOEE&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=2) - - [ ] [Algorithms - Sorting II - Lecture 3 (video)](https://www.youtube.com/watch?v=hj8YKFTFKEE&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=3) +- [ ] Shai Simonson 视频, [Aduni.org](http://www.aduni.org/): + - [ ] [算法 - 排序 - 第二讲 (video)](https://www.youtube.com/watch?v=odNJmw5TOEE&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=2) + - [ ] [算法 - 排序2 - 第三讲 (video)](https://www.youtube.com/watch?v=hj8YKFTFKEE&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=3) -- [ ] Steven Skiena lectures on sorting: - - [ ] [lecture begins at 26:46 (video)](https://youtu.be/ute-pmMkyuk?list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&t=1600) - - [ ] [lecture begins at 27:40 (video)](https://www.youtube.com/watch?v=yLvp-pB8mak&index=8&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) - - [ ] [lecture begins at 35:00 (video)](https://www.youtube.com/watch?v=q7K9otnzlfE&index=9&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) - - [ ] [lecture begins at 23:50 (video)](https://www.youtube.com/watch?v=TvqIGu9Iupw&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&index=10) +- [ ] Steven Skiena 关于排序的视频: + - [ ] [课程从 26:46 开始 (video)](https://youtu.be/ute-pmMkyuk?list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&t=1600) + - [ ] [课程从 27:40 开始 (video)](https://www.youtube.com/watch?v=yLvp-pB8mak&index=8&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) + - [ ] [课程从 35:00 开始 (video)](https://www.youtube.com/watch?v=q7K9otnzlfE&index=9&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) + - [ ] [课程从 23:50 开始 (video)](https://www.youtube.com/watch?v=TvqIGu9Iupw&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&index=10) -- [ ] UC Berkeley: +- [ ] 加州大学伯克利分校（UC Berkeley） 大学课程: - [ ] [CS 61B Lecture 29: Sorting I (video)](https://www.youtube.com/watch?v=EiUvYS2DT6I&list=PL4BBB74C7D2A1049C&index=29) - [ ] [CS 61B Lecture 30: Sorting II (video)](https://www.youtube.com/watch?v=2hTY3t80Qsk&list=PL4BBB74C7D2A1049C&index=30) - [ ] [CS 61B Lecture 32: Sorting III (video)](https://www.youtube.com/watch?v=Y6LOLpxg6Dc&index=32&list=PL4BBB74C7D2A1049C) - [ ] [CS 61B Lecture 33: Sorting V (video)](https://www.youtube.com/watch?v=qNMQ4ly43p4&index=33&list=PL4BBB74C7D2A1049C) -- [ ] - Merge sort code: - - [ ] [Using output array](http://www.cs.yale.edu/homes/aspnes/classes/223/examples/sorting/mergesort.c) - - [ ] [In-place](https://github.com/jwasham/practice-cpp/blob/master/merge_sort/merge_sort.cc) -- [ ] - Quick sort code: - - [ ] [Implementation](http://www.cs.yale.edu/homes/aspnes/classes/223/examples/randomization/quick.c) - - [ ] [Implementation](https://github.com/jwasham/practice-c/blob/master/quick_sort/quick_sort.c) +- [ ] - 归并排序: + - [ ] [使用外部数组](http://www.cs.yale.edu/homes/aspnes/classes/223/examples/sorting/mergesort.c) + - [ ] [对原数组直接排序](https://github.com/jwasham/practice-cpp/blob/master/merge_sort/merge_sort.cc) +- [ ] - 快速排序: + - [ ] [实现](http://www.cs.yale.edu/homes/aspnes/classes/223/examples/randomization/quick.c) + - [ ] [实现](https://github.com/jwasham/practice-c/blob/master/quick_sort/quick_sort.c) -- [ ] Implement: - - [ ] Mergesort: O(n log n) average and worst case - - [ ] Quicksort O(n log n) average case - - Selection sort and insertion sort are both O(n^2) average and worst case - - For heapsort, see Heap data structure above. +- [ ] 实现: + - [ ] 归并：平均和最差情况的时间复杂度为 O(n log n)。 + - [ ] 快排：平均时间复杂度为 O(n log n)。 + - 选择排序和插入排序的最坏、平均时间复杂度都是 O(n^2)。 + - 关于堆排序，请查看前文堆的数据结构部分。 -- [ ] For curiosity - not required: - - [ ] [Radix Sort](http://www.cs.yale.edu/homes/aspnes/classes/223/notes.html#radixSort) - - [ ] [Radix Sort (video)](https://www.youtube.com/watch?v=xhr26ia4k38) - - [ ] [Radix Sort, Counting Sort (linear time given constraints) (video)](https://www.youtube.com/watch?v=Nz1KZXbghj8&index=7&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb) - - [ ] [Randomization: Matrix Multiply, Quicksort, Freivalds' algorithm (video)](https://www.youtube.com/watch?v=cNB2lADK3_s&index=8&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp) - - [ ] [Sorting in Linear Time (video)](https://www.youtube.com/watch?v=pOKy3RZbSws&list=PLUl4u3cNGP61hsJNdULdudlRL493b-XZf&index=14) +- [ ] 有兴趣的话，还有一些补充 - 但并不是必须的: + - [ ] [基数排序](http://www.cs.yale.edu/homes/aspnes/classes/223/notes.html#radixSort) + - [ ] [基数排序 (video)](https://www.youtube.com/watch?v=xhr26ia4k38) + - [ ] [基数排序, 计数排序 (线性时间内) (video)](https://www.youtube.com/watch?v=Nz1KZXbghj8&index=7&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb) + - [ ] [随机算法: 矩阵相乘, 快排, Freivalds' 算法 (video)](https://www.youtube.com/watch?v=cNB2lADK3_s&index=8&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp) + - [ ] [线性时间内的排序 (video)](https://www.youtube.com/watch?v=pOKy3RZbSws&list=PLUl4u3cNGP61hsJNdULdudlRL493b-XZf&index=14) -## Graphs +## 图 -Graphs can be used to represent many problems in computer science, so this section is long, like trees and sorting were. +图论能解决计算机科学里的很多问题，所以这一节会比较长，像树和排序的部分一样。 -- Notes from Yegge: - - There are three basic ways to represent a graph in memory: - - objects and pointers - - matrix - - adjacency list - - Familiarize yourself with each representation and its pros & cons - - BFS and DFS - know their computational complexity, their tradeoffs, and how to implement them in real code - - When asked a question, look for a graph-based solution first, then move on if none. +- Yegge 的笔记: + - 有 3 种基本方式在内存里表示一个图: + - 对象和指针 + - 矩阵 + - 邻接表 + - 熟悉以上每一种图的表示法，并了解各自的优缺点 + - 宽度优先搜索和深度优先搜索 - 知道它们的计算复杂度和设计上的权衡以及如何用代码实现它们 + - 遇到一个问题时，首先尝试基于图的解决方案，如果没有再去尝试其他的。 -- [ ] Skiena Lectures - great intro: - - [ ] [CSE373 2012 - Lecture 11 - Graph Data Structures (video)](https://www.youtube.com/watch?v=OiXxhDrFruw&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&index=11) - - [ ] [CSE373 2012 - Lecture 12 - Breadth-First Search (video)](https://www.youtube.com/watch?v=g5vF8jscteo&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&index=12) - - [ ] [CSE373 2012 - Lecture 13 - Graph Algorithms (video)](https://www.youtube.com/watch?v=S23W6eTcqdY&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&index=13) - - [ ] [CSE373 2012 - Lecture 14 - Graph Algorithms (con't) (video)](https://www.youtube.com/watch?v=WitPBKGV0HY&index=14&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) - - [ ] [CSE373 2012 - Lecture 15 - Graph Algorithms (con't 2) (video)](https://www.youtube.com/watch?v=ia1L30l7OIg&index=15&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) - - [ ] [CSE373 2012 - Lecture 16 - Graph Algorithms (con't 3) (video)](https://www.youtube.com/watch?v=jgDOQq6iWy8&index=16&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) +- [ ] Skiena 教授的课程 - 很不错的介绍: + - [ ] [CSE373 2012 - 课程 11 - 图的数据结构 (video)](https://www.youtube.com/watch?v=OiXxhDrFruw&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&index=11) + - [ ] [CSE373 2012 - 课程 12 - 广度优先搜索 (video)](https://www.youtube.com/watch?v=g5vF8jscteo&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&index=12) + - [ ] [CSE373 2012 - 课程 13 - 图的算法 (video)](https://www.youtube.com/watch?v=S23W6eTcqdY&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&index=13) + - [ ] [CSE373 2012 - 课程 14 - 图的算法 (1) (video)](https://www.youtube.com/watch?v=WitPBKGV0HY&index=14&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) + - [ ] [CSE373 2012 - 课程 15 - 图的算法 (2) (video)](https://www.youtube.com/watch?v=ia1L30l7OIg&index=15&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) + - [ ] [CSE373 2012 - 课程 16 - 图的算法 (3) (video)](https://www.youtube.com/watch?v=jgDOQq6iWy8&index=16&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) -- [ ] Graphs (review and more): +- [ ] 图 (复习和其他): - - [ ] [6.006 Single-Source Shortest Paths Problem (video)](https://www.youtube.com/watch?v=Aa2sqUhIn-E&index=15&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb) - - [ ] [6.006 Dijkstra (video)](https://www.youtube.com/watch?v=2E7MmKv0Y24&index=16&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb) - - [ ] [6.006 Bellman-Ford (video)](https://www.youtube.com/watch?v=ozsuci5pIso&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=17) - - [ ] [6.006 Speeding Up Dijkstra (video)](https://www.youtube.com/watch?v=CHvQ3q_gJ7E&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=18) - - [ ] [Aduni: Graph Algorithms I - Topological Sorting, Minimum Spanning Trees, Prim's Algorithm - Lecture 6 (video)]( https://www.youtube.com/watch?v=i_AQT_XfvD8&index=6&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm) - - [ ] [Aduni: Graph Algorithms II - DFS, BFS, Kruskal's Algorithm, Union Find Data Structure - Lecture 7 (video)]( https://www.youtube.com/watch?v=ufj5_bppBsA&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=7) - - [ ] [Aduni: Graph Algorithms III: Shortest Path - Lecture 8 (video)](https://www.youtube.com/watch?v=DiedsPsMKXc&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=8) - - [ ] [Aduni: Graph Alg. IV: Intro to geometric algorithms - Lecture 9 (video)](https://www.youtube.com/watch?v=XIAQRlNkJAw&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=9) - - [ ] [CS 61B 2014 (starting at 58:09) (video)](https://youtu.be/dgjX4HdMI-Q?list=PL-XXv-cvA_iAlnI-BQr9hjqADPBtujFJd&t=3489) - - [ ] [CS 61B 2014: Weighted graphs (video)](https://www.youtube.com/watch?v=aJjlQCFwylA&list=PL-XXv-cvA_iAlnI-BQr9hjqADPBtujFJd&index=19) - - [ ] [Greedy Algorithms: Minimum Spanning Tree (video)](https://www.youtube.com/watch?v=tKwnms5iRBU&index=16&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp) - - [ ] [Strongly Connected Components Kosaraju's Algorithm Graph Algorithm (video)](https://www.youtube.com/watch?v=RpgcYiky7uw) + - [ ] [6.006 单源最短路径问题 (video)](https://www.youtube.com/watch?v=Aa2sqUhIn-E&index=15&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb) + - [ ] [6.006 Dijkstra 算法 (video)](https://www.youtube.com/watch?v=2E7MmKv0Y24&index=16&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb) + - [ ] [6.006 Bellman-Ford 算法(video)](https://www.youtube.com/watch?v=ozsuci5pIso&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=17) + - [ ] [6.006 Dijkstra 效率优化 (video)](https://www.youtube.com/watch?v=CHvQ3q_gJ7E&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=18) + - [ ] [Aduni: 图的算法 I - 拓扑排序, 最小生成树, Prim 算法 - 第六课 (video)]( https://www.youtube.com/watch?v=i_AQT_XfvD8&index=6&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm) + - [ ] [Aduni: 图的算法 II - 深度优先搜索, 广度优先搜索, Kruskal 算法, 并查集数据结构 - 第七课 (video)]( https://www.youtube.com/watch?v=ufj5_bppBsA&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=7) + - [ ] [Aduni: 图的算法 III: 最短路径 - 第八课 (video)](https://www.youtube.com/watch?v=DiedsPsMKXc&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=8) + - [ ] [Aduni: 图的算法. IV: 几何算法介绍 - 第九课 (video)](https://www.youtube.com/watch?v=XIAQRlNkJAw&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=9) + - [ ] [CS 61B 2014 (从 58:09 开始) (video)](https://youtu.be/dgjX4HdMI-Q?list=PL-XXv-cvA_iAlnI-BQr9hjqADPBtujFJd&t=3489) + - [ ] [CS 61B 2014: 加权图 (video)](https://www.youtube.com/watch?v=aJjlQCFwylA&list=PL-XXv-cvA_iAlnI-BQr9hjqADPBtujFJd&index=19) + - [ ] [贪心算法: 最小生成树 (video)](https://www.youtube.com/watch?v=tKwnms5iRBU&index=16&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp) + - [ ] [图的算法之强连通分量 Kosaraju 算法 (video)](https://www.youtube.com/watch?v=RpgcYiky7uw) -- Full Coursera Course: - - [ ] [Algorithms on Graphs (video)](https://www.coursera.org/learn/algorithms-on-graphs/home/welcome) +- 完整的 Coursera 课程: + - [ ] [图的算法 (video)](https://www.coursera.org/learn/algorithms-on-graphs/home/welcome) -- Yegge: If you get a chance, try to study up on fancier algorithms: - - [ ] Dijkstra's algorithm - see above - 6.006 - - [ ] A* - - [ ] [A Search Algorithm](https://en.wikipedia.org/wiki/A*_search_algorithm) - - [ ] [A* Pathfinding Tutorial (video)](https://www.youtube.com/watch?v=KNXfSOx4eEE) - - [ ] [A* Pathfinding (E01: algorithm explanation) (video)](https://www.youtube.com/watch?v=-L-WgKMFuhE) +- Yegge: 如果有机会，可以试试研究更酷炫的算法: + - [ ] Dijkstra 算法 - 上文 - 6.006 + - [ ] A* 算法 + - [ ] [A* 算法](https://en.wikipedia.org/wiki/A*_search_algorithm) + - [ ] [A* 寻路教程 (video)](https://www.youtube.com/watch?v=KNXfSOx4eEE) + - [ ] [A* 寻路 (E01: 算法解释) (video)](https://www.youtube.com/watch?v=-L-WgKMFuhE) -- I'll implement: - - [ ] DFS with adjacency list (recursive) - - [ ] DFS with adjacency list (iterative with stack) - - [ ] DFS with adjacency matrix (recursive) - - [ ] DFS with adjacency matrix (iterative with stack) - - [ ] BFS with adjacency list - - [ ] BFS with adjacency matrix - - [ ] single-source shortest path (Dijkstra) - - [ ] minimum spanning tree - - DFS-based algorithms (see Aduni videos above): - - [ ] check for cycle (needed for topological sort, since we'll check for cycle before starting) - - [ ] topological sort - - [ ] count connected components in a graph - - [ ] list strongly connected components - - [ ] check for bipartite graph +- 我会实现: + - [ ] DFS 邻接表 (递归) + - [ ] DFS 邻接表 (栈迭代) + - [ ] DFS 邻接矩阵 (递归) + - [ ] DFS 邻接矩阵 (栈迭代) + - [ ] BFS 邻接表 + - [ ] BFS 邻接矩阵 + - [ ] 单源最短路径问题 (Dijkstra) + - [ ] 最小生成树 + - 基于 DFS 的算法 (根据上文 Aduni 的视频): + - [ ] 检查环 (我们会先检查是否有环存在以便做拓扑排序) + - [ ] 拓扑排序 + - [ ] 计算图中的连通分支 + - [ ] 列出强连通分量 + - [ ] 检查双向图 -You'll get more graph practice in Skiena's book (see Books section below) and the interview books +可以从 Skiena 的书（参考下面的书推荐小节）和面试书籍中学习更多关于图的实践。 -## Even More Knowledge +## 更多知识 -- ### Recursion - - [ ] Stanford lectures on recursion & backtracking: - - [ ] [Lecture 8 | Programming Abstractions (video)](https://www.youtube.com/watch?v=gl3emqCuueQ&list=PLFE6E58F856038C69&index=8) - - [ ] [Lecture 9 | Programming Abstractions (video)](https://www.youtube.com/watch?v=uFJhEPrbycQ&list=PLFE6E58F856038C69&index=9) - - [ ] [Lecture 10 | Programming Abstractions (video)](https://www.youtube.com/watch?v=NdF1QDTRkck&index=10&list=PLFE6E58F856038C69) - - [ ] [Lecture 11 | Programming Abstractions (video)](https://www.youtube.com/watch?v=p-gpaIGRCQI&list=PLFE6E58F856038C69&index=11) - - when it is appropriate to use it - - how is tail recursion better than not? - - [ ] [What Is Tail Recursion Why Is It So Bad?](https://www.quora.com/What-is-tail-recursion-Why-is-it-so-bad) - - [ ] [Tail Recursion (video)](https://www.youtube.com/watch?v=L1jjXGfxozc) +- ### 递归 + - [ ] Stanford 大学关于递归 & 回溯的课程: + - [ ] [课程 8 | 抽象编程 (video)](https://www.youtube.com/watch?v=gl3emqCuueQ&list=PLFE6E58F856038C69&index=8) + - [ ] [课程 9 | 抽象编程 (video)](https://www.youtube.com/watch?v=uFJhEPrbycQ&list=PLFE6E58F856038C69&index=9) + - [ ] [课程 10 | 抽象编程 (video)](https://www.youtube.com/watch?v=NdF1QDTRkck&index=10&list=PLFE6E58F856038C69) + - [ ] [课程 11 | 抽象编程 (video)](https://www.youtube.com/watch?v=p-gpaIGRCQI&list=PLFE6E58F856038C69&index=11) + - 什么时候适合使用 + - 尾递归会更好么? + - [ ] [什么是尾递归以及为什么它如此糟糕?](https://www.quora.com/What-is-tail-recursion-Why-is-it-so-bad) + - [ ] [尾递归 (video)](https://www.youtube.com/watch?v=L1jjXGfxozc) -- ### Dynamic Programming +- ### 动态规划 - This subject can be pretty difficult, as each DP soluble problem must be defined as a recursion relation, and coming up with it can be tricky. - - I suggest looking at many examples of DP problems until you have a solid understanding of the pattern involved. - - [ ] Videos: - - the Skiena videos can be hard to follow since he sometimes uses the whiteboard, which is too small to see - - [ ] [Skiena: CSE373 2012 - Lecture 19 - Introduction to Dynamic Programming (video)](https://youtu.be/Qc2ieXRgR0k?list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&t=1718) - - [ ] [Skiena: CSE373 2012 - Lecture 20 - Edit Distance (video)](https://youtu.be/IsmMhMdyeGY?list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&t=2749) - - [ ] [Skiena: CSE373 2012 - Lecture 21 - Dynamic Programming Examples (video)](https://youtu.be/o0V9eYF4UI8?list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&t=406) - - [ ] [Skiena: CSE373 2012 - Lecture 22 - Applications of Dynamic Programming (video)](https://www.youtube.com/watch?v=dRbMC1Ltl3A&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&index=22) - - [ ] [Simonson: Dynamic Programming 0 (starts at 59:18) (video)](https://youtu.be/J5aJEcOr6Eo?list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&t=3558) - - [ ] [Simonson: Dynamic Programming I - Lecture 11 (video)](https://www.youtube.com/watch?v=0EzHjQ_SOeU&index=11&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm) - - [ ] [Simonson: Dynamic programming II - Lecture 12 (video)](https://www.youtube.com/watch?v=v1qiRwuJU7g&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=12) - - [ ] List of individual DP problems (each is short): - [Dynamic Programming (video)](https://www.youtube.com/playlist?list=PLrmLmBdmIlpsHaNTPP_jHHDx_os9ItYXr) - - [ ] Yale Lecture notes: - - [ ] [Dynamic Programming](http://www.cs.yale.edu/homes/aspnes/classes/223/notes.html#dynamicProgramming) - - [ ] Coursera: - - [ ] [The RNA secondary structure problem (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/80RrW/the-rna-secondary-structure-problem) - - [ ] [A dynamic programming algorithm (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/PSonq/a-dynamic-programming-algorithm) - - [ ] [Illustrating the DP algorithm (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/oUEK2/illustrating-the-dp-algorithm) - - [ ] [Running time of the DP algorithm (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/nfK2r/running-time-of-the-dp-algorithm) - - [ ] [DP vs. recursive implementation (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/M999a/dp-vs-recursive-implementation) - - [ ] [Global pairwise sequence alignment (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/UZ7o6/global-pairwise-sequence-alignment) - - [ ] [Local pairwise sequence alignment (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/WnNau/local-pairwise-sequence-alignment) + - 这一部分会有点困难，每个可以用动态规划解决的问题都必须先定义出递推关系，要推导出来可能会有点棘手。 + - 我建议先阅读和学习足够多的动态规划的例子，以便对解决 DP 问题的一般模式有个扎实的理解。 -- ### Combinatorics (n choose k) & Probability - - [ ] [Math Skills: How to find Factorial, Permutation and Combination (Choose) (video)](https://www.youtube.com/watch?v=8RRo6Ti9d0U) - - [ ] [Make School: Probability (video)](https://www.youtube.com/watch?v=sZkAAk9Wwa4) - - [ ] [Make School: More Probability and Markov Chains (video)](https://www.youtube.com/watch?v=dNaJg-mLobQ) - - [ ] Khan Academy: - - Course layout: - - [ ] [Basic Theoretical Probability](https://www.khanacademy.org/math/probability/probability-and-combinatorics-topic) - - Just the videos - 41 (each are simple and each are short): - - [ ] [Probability Explained (video)](https://www.youtube.com/watch?v=uzkc-qNVoOk&list=PLC58778F28211FA19) + - [ ] 视频: + - Skiena 的视频可能会有点难跟上，有时候他用白板写的字会比较小，难看清楚。 + - [ ] [Skiena: CSE373 2012 - 课程 19 - 动态规划介绍 (video)](https://youtu.be/Qc2ieXRgR0k?list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&t=1718) + - [ ] [Skiena: CSE373 2012 - 课程 20 - 编辑距离 (video)](https://youtu.be/IsmMhMdyeGY?list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&t=2749) + - [ ] [Skiena: CSE373 2012 - 课程 21 - 动态规划举例 (video)](https://youtu.be/o0V9eYF4UI8?list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&t=406) + - [ ] [Skiena: CSE373 2012 - 课程 22 - 动态规划应用 (video)](https://www.youtube.com/watch?v=dRbMC1Ltl3A&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&index=22) + - [ ] [Simonson: 动态规划 0 (starts at 59:18) (video)](https://youtu.be/J5aJEcOr6Eo?list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&t=3558) + - [ ] [Simonson: 动态规划 I - 课程 11 (video)](https://www.youtube.com/watch?v=0EzHjQ_SOeU&index=11&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm) + - [ ] [Simonson: 动态规划 II - 课程 12 (video)](https://www.youtube.com/watch?v=v1qiRwuJU7g&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=12) + - [ ] 单独的 DP 问题 (每一个视频都很短): + [动态规划 (video)](https://www.youtube.com/playlist?list=PLrmLmBdmIlpsHaNTPP_jHHDx_os9ItYXr) + - [ ] Yale 课程笔记: + - [ ] [动态规划](http://www.cs.yale.edu/homes/aspnes/classes/223/notes.html#dynamicProgramming) + - [ ] Coursera 课程: + - [ ] [RNA 二级结构问题 (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/80RrW/the-rna-secondary-structure-problem) + - [ ] [动态规划算法 (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/PSonq/a-dynamic-programming-algorithm) + - [ ] [DP 算法描述 (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/oUEK2/illustrating-the-dp-algorithm) + - [ ] [DP 算法的运行时间 (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/nfK2r/running-time-of-the-dp-algorithm) + - [ ] [DP vs 递归实现 (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/M999a/dp-vs-recursive-implementation) + - [ ] [全局成对序列排列 (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/UZ7o6/global-pairwise-sequence-alignment) + - [ ] [本地成对序列排列 (video)](https://www.coursera.org/learn/algorithmic-thinking-2/lecture/WnNau/local-pairwise-sequence-alignment) -- ### NP, NP-Complete and Approximation Algorithms - - Know about the most famous classes of NP-complete problems, such as traveling salesman and the knapsack problem, - and be able to recognize them when an interviewer asks you them in disguise. - - Know what NP-complete means. - - [ ] [Computational Complexity (video)](https://www.youtube.com/watch?v=moPtwq_cVH8&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=23) +- ### 组合 (n 中选 k 个) & 概率 + - [ ] [数据技巧: 如何找出阶乘、排列和组合(选择) (video)](https://www.youtube.com/watch?v=8RRo6Ti9d0U) + - [ ] [来点学校的东西: 概率 (video)](https://www.youtube.com/watch?v=sZkAAk9Wwa4) + - [ ] [来点学校的东西: 概率和马尔可夫链 (video)](https://www.youtube.com/watch?v=dNaJg-mLobQ) + - [ ] 可汗学院: + - 课程设置: + - [ ] [概率理论基础](https://www.khanacademy.org/math/probability/probability-and-combinatorics-topic) + - 视频 - 41 (每一个都短小精悍): + - [ ] [概率解释 (video)](https://www.youtube.com/watch?v=uzkc-qNVoOk&list=PLC58778F28211FA19) + +- ### NP, NP-完全和近似算法 + - 知道最经典的一些 NP 完全问题，比如旅行商问题和背包问题, + 而且能在面试官试图忽悠你的时候识别出他们。 + - 知道 NP 完全是什么意思. + - [ ] [计算复杂度 (video)](https://www.youtube.com/watch?v=moPtwq_cVH8&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=23) - [ ] Simonson: - - [ ] [Greedy Algs. II & Intro to NP Completeness (video)](https://youtu.be/qcGnJ47Smlo?list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&t=2939) - - [ ] [NP Completeness II & Reductions (video)](https://www.youtube.com/watch?v=e0tGC6ZQdQE&index=16&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm) - - [ ] [NP Completeness III (Video)](https://www.youtube.com/watch?v=fCX1BGT3wjE&index=17&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm) - - [ ] [NP Completeness IV (video)](https://www.youtube.com/watch?v=NKLDp3Rch3M&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=18) + - [ ] [贪心算法. II & 介绍 NP-完全性 (video)](https://youtu.be/qcGnJ47Smlo?list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&t=2939) + - [ ] [NP-完全性 II & 归约 (video)](https://www.youtube.com/watch?v=e0tGC6ZQdQE&index=16&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm) + - [ ] [NP-完全性 III (Video)](https://www.youtube.com/watch?v=fCX1BGT3wjE&index=17&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm) + - [ ] [NP-完全性 IV (video)](https://www.youtube.com/watch?v=NKLDp3Rch3M&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=18) - [ ] Skiena: - - [ ] [CSE373 2012 - Lecture 23 - Introduction to NP-CompletenessNP Completeness IV (video)](https://youtu.be/KiK5TVgXbFg?list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&t=1508) - - [ ] [CSE373 2012 - Lecture 24 - NP-Completeness Proofs (video)](https://www.youtube.com/watch?v=27Al52X3hd4&index=24&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) - - [ ] [CSE373 2012 - Lecture 25 - NP-Completeness Challenge (video)](https://www.youtube.com/watch?v=xCPH4gwIIXM&index=25&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) - - [ ] [Complexity: P, NP, NP-completeness, Reductions (video)](https://www.youtube.com/watch?v=eHZifpgyH_4&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp&index=22) - - [ ] [Complexity: Approximation Algorithms (video)](https://www.youtube.com/watch?v=MEz1J9wY2iM&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp&index=24) - - [ ] [Complexity: Fixed-Parameter Algorithms (video)](https://www.youtube.com/watch?v=4q-jmGrmxKs&index=25&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp) - - Peter Norvik discusses near-optimal solutions to traveling salesman problem: - - [Jupyter Notebook](http://nbviewer.jupyter.org/url/norvig.com/ipython/TSP.ipynb) - - Pages 1048 - 1140 in CLRS if you have it. + - [ ] [CSE373 2012 - Lecture 23 - 介绍 NP-完全性 IV (video)](https://youtu.be/KiK5TVgXbFg?list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b&t=1508) + - [ ] [CSE373 2012 - Lecture 24 - NP-完全性证明 (video)](https://www.youtube.com/watch?v=27Al52X3hd4&index=24&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) + - [ ] [CSE373 2012 - Lecture 25 - NP-完全性挑战 (video)](https://www.youtube.com/watch?v=xCPH4gwIIXM&index=25&list=PLOtl7M3yp-DV69F32zdK7YJcNXpTunF2b) + - [ ] [复杂度: P, NP, NP-完全性, 规约 (video)](https://www.youtube.com/watch?v=eHZifpgyH_4&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp&index=22) + - [ ] [复杂度: 近视算法 Algorithms (video)](https://www.youtube.com/watch?v=MEz1J9wY2iM&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp&index=24) + - [ ] [复杂度: 固定参数算法 (video)](https://www.youtube.com/watch?v=4q-jmGrmxKs&index=25&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp) + - Peter Norvik 讨论旅行商问题的近似最优解: + - [Jupyter 笔记本](http://nbviewer.jupyter.org/url/norvig.com/ipython/TSP.ipynb) + - 《算法导论》的第 1048 - 1140 页。 -- ### Caches - - [ ] LRU cache: - - [ ] [The Magic of LRU Cache (100 Days of Google Dev) (video)](https://www.youtube.com/watch?v=R5ON3iwx78M) - - [ ] [Implementing LRU (video)](https://www.youtube.com/watch?v=bq6N7Ym81iI) +- ### 缓存 + - [ ] LRU 缓存: + - [ ] [LRU 的魔力 (100 Days of Google Dev) (video)](https://www.youtube.com/watch?v=R5ON3iwx78M) + - [ ] [实现 LRU (video)](https://www.youtube.com/watch?v=bq6N7Ym81iI) - [ ] [LeetCode - 146 LRU Cache (C++) (video)](https://www.youtube.com/watch?v=8-FZRAjR7qU) - [ ] CPU cache: - - [ ] [MIT 6.004 L15: The Memory Hierarchy (video)](https://www.youtube.com/watch?v=vjYF_fAZI5E&list=PLrRW1w6CGAcXbMtDFj205vALOGmiRc82-&index=24) - - [ ] [MIT 6.004 L16: Cache Issues (video)](https://www.youtube.com/watch?v=ajgC3-pyGlk&index=25&list=PLrRW1w6CGAcXbMtDFj205vALOGmiRc82-) + - [ ] [MIT 6.004 L15: 存储体系 (video)](https://www.youtube.com/watch?v=vjYF_fAZI5E&list=PLrRW1w6CGAcXbMtDFj205vALOGmiRc82-&index=24) + - [ ] [MIT 6.004 L16: 缓存的问题 (video)](https://www.youtube.com/watch?v=ajgC3-pyGlk&index=25&list=PLrRW1w6CGAcXbMtDFj205vALOGmiRc82-) -- ### Processes and Threads - - [ ] Computer Science 162 - Operating Systems (25 videos): - - for precesses and threads see videos 1-11 - - [Operating Systems and System Programming (video)](https://www.youtube.com/playlist?list=PL-XXv-cvA_iBDyz-ba4yDskqMDY6A1w_c) - - [What Is The Difference Between A Process And A Thread?](https://www.quora.com/What-is-the-difference-between-a-process-and-a-thread) - - Covers: - - Processes, Threads, Concurrency issues - - difference between processes and threads - - processes - - threads - - locks - - mutexes - - semaphores - - monitors - - how they work - - deadlock - - livelock - - CPU activity, interrupts, context switching - - Modern concurrency constructs with multicore processors - - Process resource needs (memory: code, static storage, stack, heap, and also file descriptors, i/o) - - Thread resource needs (shares above (minus stack) with other threads in same process but each has its own pc, stack counter, registers and stack) - - Forking is really copy on write (read-only) until the new process writes to memory, then it does a full copy. - - Context switching - - How context switching is initiated by the operating system and underlying hardware - - [ ] [threads in C++ (series - 10 videos)](https://www.youtube.com/playlist?list=PL5jc9xFGsL8E12so1wlMS0r0hTQoJL74M) - - [ ] concurrency in Python (videos): - - [ ] [Short series on threads](https://www.youtube.com/playlist?list=PL1H1sBF1VAKVMONJWJkmUh6_p8g4F2oy1) - - [ ] [Python Threads](https://www.youtube.com/watch?v=Bs7vPNbB9JM) - - [ ] [Understanding the Python GIL (2010)](https://www.youtube.com/watch?v=Obt-vMVdM8s) - - [reference](http://www.dabeaz.com/GIL) - - [ ] [David Beazley - Python Concurrency From the Ground Up: LIVE! - PyCon 2015](https://www.youtube.com/watch?v=MCs5OvhV9S4) - - [ ] [Keynote David Beazley - Topics of Interest (Python Asyncio)](https://www.youtube.com/watch?v=ZzfHjytDceU) - - [ ] [Mutex in Python](https://www.youtube.com/watch?v=0zaPs8OtyKY) +- ### 进程和线程 + - [ ] 计算机科学 162 - 操作系统 (25 个视频): + - 视频 1-11 是关于进程和线程 + - [操作系统和系统编程 (video)](https://www.youtube.com/playlist?list=PL-XXv-cvA_iBDyz-ba4yDskqMDY6A1w_c) + - [进程和线程的区别是什么?](https://www.quora.com/What-is-the-difference-between-a-process-and-a-thread) + - 涵盖了: + - 进程、线程、协程 + - 进程和线程的区别 + - 进程 + - 线程 + - 锁 + - 互斥 + - 信号量 + - 监控 + - 他们是如何工作的 + - 死锁 + - 活锁 + - CPU 活动, 中断, 上下文切换 + - 现代多核处理器的并发式结构 + - 进程资源需要（内存：代码、静态存储器、栈、堆、文件描述符、I/O） + - 线程资源需要（在同一个进程内和其他线程共享以上的资源，但是每个线程都有独立的程序计数器、栈计数器、寄存器和栈） + - Fork 操作是真正的写时复制（只读），直到新的进程写到内存中，才会生成一份新的拷贝。 + - 上下文切换 + - 操作系统和底层硬件是如何初始化上下文切换的。 + - [ ] [C++ 的线程 (系列 - 10 个视频)](https://www.youtube.com/playlist?list=PL5jc9xFGsL8E12so1wlMS0r0hTQoJL74M) + - [ ] Python 的协程 (视频): + - [ ] [线程系列](https://www.youtube.com/playlist?list=PL1H1sBF1VAKVMONJWJkmUh6_p8g4F2oy1) + - [ ] [Python 线程](https://www.youtube.com/watch?v=Bs7vPNbB9JM) + - [ ] [理解 Python 的 GIL (2010)](https://www.youtube.com/watch?v=Obt-vMVdM8s) + - [参考](http://www.dabeaz.com/GIL) + - [ ] [David Beazley - Python 协程 - PyCon 2015](https://www.youtube.com/watch?v=MCs5OvhV9S4) + - [ ] [Keynote David Beazley - 兴趣主题 (Python 异步 I/O)](https://www.youtube.com/watch?v=ZzfHjytDceU) + - [ ] [Python 中的互斥](https://www.youtube.com/watch?v=0zaPs8OtyKY) - Scalability and System Design are very large topics with many topics and resources, since there is a lot to consider - when designing a software/hardware system that can scale. Expect to spend quite a bit of time on this. + 系统设计以及可伸缩性，要把软硬件的伸缩性设计的足够好有很多的东西要考虑，所以这是个包含非常多内容和资源的大主题。需要花费相当多的时间在这个主题上。 -- ### System Design, Scalability, Data Handling - - Considerations from Yegge: - - scalability - - Distill large data sets to single values - - Transform one data set to another - - Handling obscenely large amounts of data - - system design - - features sets - - interfaces - - class hierarchies - - designing a system under certain constraints - - simplicity and robustness - - tradeoffs - - performance analysis and optimization - - [ ] **START HERE**: [System Design from HiredInTech](http://www.hiredintech.com/system-design/) - - [ ] [How Do I Prepare To Answer Design Questions In A Technical Inverview?](https://www.quora.com/How-do-I-prepare-to-answer-design-questions-in-a-technical-interview?redirected_qid=1500023) - - [ ] [8 Things You Need to Know Before a System Design Interview](http://blog.gainlo.co/index.php/2015/10/22/8-things-you-need-to-know-before-system-design-interviews/) - - [ ] [Algorithm design](http://www.hiredintech.com/algorithm-design/) - - [ ] [Database Normalization - 1NF, 2NF, 3NF and 4NF (video)](https://www.youtube.com/watch?v=UrYLYV7WSHM) - - [ ] [System Design Interview](https://github.com/checkcheckzz/system-design-interview) - There are a lot of resources in this one. Look through the articles and examples. I put some of them below. - - [ ] [How to ace a systems design interview](http://www.palantir.com/2011/10/how-to-rock-a-systems-design-interview/) - - [ ] [Numbers Everyone Should Know](http://everythingisdata.wordpress.com/2009/10/17/numbers-everyone-should-know/) - - [ ] [How long does it take to make a context switch?](http://blog.tsunanet.net/2010/11/how-long-does-it-take-to-make-context.html) - - [ ] [Transactions Across Datacenters (video)](https://www.youtube.com/watch?v=srOgpXECblk) - - [ ] [A plain english introduction to CAP Theorem](http://ksat.me/a-plain-english-introduction-to-cap-theorem/) - - [ ] Paxos Consensus algorithm: - - [short video](https://www.youtube.com/watch?v=s8JqcZtvnsM) - - [extended video with use case and multi-paxos](https://www.youtube.com/watch?v=JEpsBg0AO6o) - - [paper](http://research.microsoft.com/en-us/um/people/lamport/pubs/paxos-simple.pdf) - - [ ] [Consistent Hashing](http://www.tom-e-white.com/2007/11/consistent-hashing.html) - - [ ] [NoSQL Patterns](http://horicky.blogspot.com/2009/11/nosql-patterns.html) - - [ ] [Optional: UML 2.0 Series (vido)](https://www.youtube.com/watch?v=OkC7HKtiZC0&list=PLGLfVvz_LVvQ5G-LdJ8RLqe-ndo7QITYc) - - [ ] OOSE: Software Dev Using UML and Java (21 videos): - - Can skip this if you have a great grasp of OO and OO design practices. - - [OOSE: Software Dev Using UML and Java](https://www.youtube.com/playlist?list=PLJ9pm_Rc9HesnkwKlal_buSIHA-jTZMpO) - - [ ] SOLID OOP Principles: - - [ ] [Bob Martin SOLID Principles of Object Oriented and Agile Design (video)](https://www.youtube.com/watch?v=TMuno5RZNeE) - - [ ] [SOLID Design Patterns in C# (video)](https://www.youtube.com/playlist?list=PL8m4NUhTQU48oiGCSgCP1FiJEcg_xJzyQ) - - [ ] [SOLID Principles (video)](https://www.youtube.com/playlist?list=PL4CE9F710017EA77A) - - [ ] S - [Single Responsibility Principle](http://www.oodesign.com/single-responsibility-principle.html) | [Single responsibility to each Object](http://www.javacodegeeks.com/2011/11/solid-single-responsibility-principle.html) - - [more flavor](https://docs.google.com/open?id=0ByOwmqah_nuGNHEtcU5OekdDMkk) - - [ ] O - [Open/Closed Principal](http://www.oodesign.com/open-close-principle.html) | [On production level Objects are ready for extension for not for modification](https://en.wikipedia.org/wiki/Open/closed_principle) - - [more flavor](http://docs.google.com/a/cleancoder.com/viewer?a=v&pid=explorer&chrome=true&srcid=0BwhCYaYDn8EgN2M5MTkwM2EtNWFkZC00ZTI3LWFjZTUtNTFhZGZiYmUzODc1&hl=en) - - [ ] L - [Liskov Substitution Principal](http://www.oodesign.com/liskov-s-substitution-principle.html) | [Base Class and Derived class follow ‘IS A’ principal](http://stackoverflow.com/questions/56860/what-is-the-liskov-substitution-principle) - - [more flavor](http://docs.google.com/a/cleancoder.com/viewer?a=v&pid=explorer&chrome=true&srcid=0BwhCYaYDn8EgNzAzZjA5ZmItNjU3NS00MzQ5LTkwYjMtMDJhNDU5ZTM0MTlh&hl=en) - - [ ] I - [Interface segregation principle](http://www.oodesign.com/interface-segregation-principle.html) | clients should not be forced to implement interfaces they don't use - - [Interface Segregation Principle in 5 minutes (video)](https://www.youtube.com/watch?v=3CtAfl7aXAQ) - - [more flavor](http://docs.google.com/a/cleancoder.com/viewer?a=v&pid=explorer&chrome=true&srcid=0BwhCYaYDn8EgOTViYjJhYzMtMzYxMC00MzFjLWJjMzYtOGJiMDc5N2JkYmJi&hl=en) - - [ ] D -[Dependency Inversion principle](http://www.oodesign.com/dependency-inversion-principle.html) | Reduce the dependency In composition of objects. - - [Why Is The Dependency Inversion Principle And Why Is It Important](http://stackoverflow.com/questions/62539/what-is-the-dependency-inversion-principle-and-why-is-it-important) - - [more flavor](http://docs.google.com/a/cleancoder.com/viewer?a=v&pid=explorer&chrome=true&srcid=0BwhCYaYDn8EgMjdlMWIzNGUtZTQ0NC00ZjQ5LTkwYzQtZjRhMDRlNTQ3ZGMz&hl=en) - - [ ] Scalability: - - [ ] [Great overview (video)](https://www.youtube.com/watch?v=-W9F__D3oY4) - - [ ] Short series: - - [Clones](http://www.lecloud.net/post/7295452622/scalability-for-dummies-part-1-clones) - - [Database](http://www.lecloud.net/post/7994751381/scalability-for-dummies-part-2-database) - - [Cache](http://www.lecloud.net/post/9246290032/scalability-for-dummies-part-3-cache) - - [Asynchronism](http://www.lecloud.net/post/9699762917/scalability-for-dummies-part-4-asynchronism) - - [ ] [Scalable Web Architecture and Distributed Systems](http://www.aosabook.org/en/distsys.html) - - [ ] [Fallacies of Distributed Computing Explained](https://pages.cs.wisc.edu/~zuyu/files/fallacies.pdf) - - [ ] [Pragmatic Programming Techniques](http://horicky.blogspot.com/2010/10/scalable-system-design-patterns.html) - - [extra: Google Pregel Graph Processing](http://horicky.blogspot.com/2010/07/google-pregel-graph-processing.html) - - [ ] [Jeff Dean - Building Software Systems At Google and Lessons Learned (video)](https://www.youtube.com/watch?v=modXC5IWTJI) - - [ ] [Introduction to Architecting Systems for Scale](http://lethain.com/introduction-to-architecting-systems-for-scale/) - - [ ] [Scaling mobile games to a global audience using App Engine and Cloud Datastore (video)](https://www.youtube.com/watch?v=9nWyWwY2Onc) +- ### 系统设计、可伸缩性、数据处理 + - Yegge 的注意事项: + - 伸缩性 + - 把大数据集提取为单一值 + - 大数据集转换 + - 处理大量的数据集 + - 系统 + - 特征集 + - 接口 + - 类层次结构 + - 在特定的约束下设计系统 + - 轻量和健壮性 + - 权衡和折衷 + - 性能分析和优化 + - [ ] **从这里开始**: [HiredInTech：系统设计](http://www.hiredintech.com/system-design/) + - [ ] [该如何为技术面试里设计方面的问题做准备?](https://www.quora.com/How-do-I-prepare-to-answer-design-questions-in-a-technical-interview?redirected_qid=1500023) + - [ ] [在系统设计面试前必须知道的 8 件事](http://blog.gainlo.co/index.php/2015/10/22/8-things-you-need-to-know-before-system-design-interviews/) + - [ ] [算法设计](http://www.hiredintech.com/algorithm-design/) + - [ ] [数据库范式 - 1NF, 2NF, 3NF and 4NF (video)](https://www.youtube.com/watch?v=UrYLYV7WSHM) + - [ ] [系统设计面试](https://github.com/checkcheckzz/system-design-interview) - 这一部分有很多的资源，浏览一下我放在下面的文章和例子。 + - [ ] [如何在系统设计面试中脱颖而出](http://www.palantir.com/2011/10/how-to-rock-a-systems-design-interview/) + - [ ] [每个人都该知道的一些数字](http://everythingisdata.wordpress.com/2009/10/17/numbers-everyone-should-know/) + - [ ] [上下文切换操作会耗费多少时间?](http://blog.tsunanet.net/2010/11/how-long-does-it-take-to-make-context.html) + - [ ] [跨数据中心的事务 (video)](https://www.youtube.com/watch?v=srOgpXECblk) + - [ ] [简明 CAP 理论介绍](http://ksat.me/a-plain-english-introduction-to-cap-theorem/) + - [ ] Paxos 一致性算法: + - [时间很短](https://www.youtube.com/watch?v=s8JqcZtvnsM) + - [用例 和 multi-paxos](https://www.youtube.com/watch?v=JEpsBg0AO6o) + - [论文](http://research.microsoft.com/en-us/um/people/lamport/pubs/paxos-simple.pdf) + - [ ] [一致性哈希](http://www.tom-e-white.com/2007/11/consistent-hashing.html) + - [ ] [NoSQL 模式](http://horicky.blogspot.com/2009/11/nosql-patterns.html) + - [ ] [OOSE: UML 2.0 系列 (video)](https://www.youtube.com/watch?v=OkC7HKtiZC0&list=PLGLfVvz_LVvQ5G-LdJ8RLqe-ndo7QITYc) + - [ ] OOSE: 使用 UML 和 Java 开发软件 (21 videos): + - 如果你对 OO 都深刻的理解和实践，可以跳过这部分。 + - [OOSE: 使用 UML 和 Java 开发软件](https://www.youtube.com/playlist?list=PLJ9pm_Rc9HesnkwKlal_buSIHA-jTZMpO) + - [ ] 面向对象编程的 SOLID 原则: + - [ ] [Bob Martin 面向对象的 SOLID 原则和敏捷设计 (video)](https://www.youtube.com/watch?v=TMuno5RZNeE) + - [ ] [C# SOLID 设计模式 (video)](https://www.youtube.com/playlist?list=PL8m4NUhTQU48oiGCSgCP1FiJEcg_xJzyQ) + - [ ] [SOLID 原则 (video)](https://www.youtube.com/playlist?list=PL4CE9F710017EA77A) + - [ ] S - [单一职责原则](http://www.oodesign.com/single-responsibility-principle.html) | [每个对象的单一职责](http://www.javacodegeeks.com/2011/11/solid-single-responsibility-principle.html) + - [更多](https://docs.google.com/open?id=0ByOwmqah_nuGNHEtcU5OekdDMkk) + - [ ] O - [开闭原则](http://www.oodesign.com/open-close-principle.html) | [生产环境里的对象应该为扩展做准备而不是为更改](https://en.wikipedia.org/wiki/Open/closed_principle) + - [更多](http://docs.google.com/a/cleancoder.com/viewer?a=v&pid=explorer&chrome=true&srcid=0BwhCYaYDn8EgN2M5MTkwM2EtNWFkZC00ZTI3LWFjZTUtNTFhZGZiYmUzODc1&hl=en) + - [ ] L - [里氏代换原则](http://www.oodesign.com/liskov-s-substitution-principle.html) | [基类和继承类遵循 ‘IS A’ 原则](http://stackoverflow.com/questions/56860/what-is-the-liskov-substitution-principle) + - [更多](http://docs.google.com/a/cleancoder.com/viewer?a=v&pid=explorer&chrome=true&srcid=0BwhCYaYDn8EgNzAzZjA5ZmItNjU3NS00MzQ5LTkwYjMtMDJhNDU5ZTM0MTlh&hl=en) + - [ ] I - [接口隔离原则](http://www.oodesign.com/interface-segregation-principle.html) | 客户端被迫实现用不到的接口 + - [5 分钟讲解接口隔离原则 (video)](https://www.youtube.com/watch?v=3CtAfl7aXAQ) + - [更多](http://docs.google.com/a/cleancoder.com/viewer?a=v&pid=explorer&chrome=true&srcid=0BwhCYaYDn8EgOTViYjJhYzMtMzYxMC00MzFjLWJjMzYtOGJiMDc5N2JkYmJi&hl=en) + - [ ] D -[依赖反转原则](http://www.oodesign.com/dependency-inversion-principle.html) | 减少对象里的依赖。 + - [什么是依赖倒置以及它为什么重要](http://stackoverflow.com/questions/62539/what-is-the-dependency-inversion-principle-and-why-is-it-important) + - [更多](http://docs.google.com/a/cleancoder.com/viewer?a=v&pid=explorer&chrome=true&srcid=0BwhCYaYDn8EgMjdlMWIzNGUtZTQ0NC00ZjQ5LTkwYzQtZjRhMDRlNTQ3ZGMz&hl=en) + - [ ] 可伸缩性: + - [ ] [很棒的概述 (video)](https://www.youtube.com/watch?v=-W9F__D3oY4) + - [ ] 简短系列: + - [克隆](http://www.lecloud.net/post/7295452622/scalability-for-dummies-part-1-clones) + - [数据库](http://www.lecloud.net/post/7994751381/scalability-for-dummies-part-2-database) + - [缓存](http://www.lecloud.net/post/9246290032/scalability-for-dummies-part-3-cache) + - [异步](http://www.lecloud.net/post/9699762917/scalability-for-dummies-part-4-asynchronism) + - [ ] [可伸缩的 Web 架构和分布式系统](http://www.aosabook.org/en/distsys.html) + - [ ] [错误的分布式系统解释](https://pages.cs.wisc.edu/~zuyu/files/fallacies.pdf) + - [ ] [实用编程技术](http://horicky.blogspot.com/2010/10/scalable-system-design-patterns.html) + - [extra: Google Pregel 图形处理](http://horicky.blogspot.com/2010/07/google-pregel-graph-processing.html) + - [ ] [Jeff Dean - 在 Goolge 构建软件系统 (video)](https://www.youtube.com/watch?v=modXC5IWTJI) + - [ ] [可伸缩系统架构设计介绍](http://lethain.com/introduction-to-architecting-systems-for-scale/) + - [ ] [使用 App Engine 和云存储扩展面向全球用户的手机游戏架构实践(video)](https://www.youtube.com/watch?v=9nWyWwY2Onc) - [ ] [How Google Does Planet-Scale Engineering for Planet-Scale Infra (video)](https://www.youtube.com/watch?v=H4vMcD7zKM0) - - [ ] [The Importance of Algorithms](https://www.topcoder.com/community/data-science/data-science-tutorials/the-importance-of-algorithms/) - - [ ] [Sharding](http://highscalability.com/blog/2009/8/6/an-unorthodox-approach-to-database-design-the-coming-of-the.html) - - [ ] [Scale at Facebook (2009)](https://www.infoq.com/presentations/Scale-at-Facebook) - - [ ] [Scale at Facebook (2012), "Building for a Billion Users" (video)](https://www.youtube.com/watch?v=oodS71YtkGU) - - [ ] [Engineering for the Long Game - Astrid Atkinson Keynote(video)](https://www.youtube.com/watch?v=p0jGmgIrf_M&list=PLRXxvay_m8gqVlExPC5DG3TGWJTaBgqSA&index=4) - - [ ] [7 Years Of YouTube Scalability Lessons In 30 Minutes](http://highscalability.com/blog/2012/3/26/7-years-of-youtube-scalability-lessons-in-30-minutes.html) + - [ ] [算法的重要性](https://www.topcoder.com/community/data-science/data-science-tutorials/the-importance-of-algorithms/) + - [ ] [分片](http://highscalability.com/blog/2009/8/6/an-unorthodox-approach-to-database-design-the-coming-of-the.html) + - [ ] [Facebook 系统规模扩展实践 (2009)](https://www.infoq.com/presentations/Scale-at-Facebook) + - [ ] [Facebook 系统规模扩展实践 (2012), "为 10 亿用户构建" (video)](https://www.youtube.com/watch?v=oodS71YtkGU) + - [ ] [Long Game 工程实践 - Astrid Atkinson Keynote(video)](https://www.youtube.com/watch?v=p0jGmgIrf_M&list=PLRXxvay_m8gqVlExPC5DG3TGWJTaBgqSA&index=4) + - [ ] [30 分钟看完 YouTuBe 7 年系统扩展经验](http://highscalability.com/blog/2012/3/26/7-years-of-youtube-scalability-lessons-in-30-minutes.html) - [video](https://www.youtube.com/watch?v=G-lGCC4KKok) - - [ ] [How PayPal Scaled To Billions Of Transactions Daily Using Just 8VMs](http://highscalability.com/blog/2016/8/15/how-paypal-scaled-to-billions-of-transactions-daily-using-ju.html) - - [ ] [How to Remove Duplicates in Large Datasets](https://blog.clevertap.com/how-to-remove-duplicates-in-large-datasets/) - - [ ] [A look inside Etsy's scale and engineering culture with Jon Cowie (video)](https://www.youtube.com/watch?v=3vV4YiqKm1o) - - [ ] [What Led Amazon to its Own Microservices Architecture](http://thenewstack.io/led-amazon-microservices-architecture/) - - [ ] [To Compress Or Not To Compress, That Was Uber's Question](https://eng.uber.com/trip-data-squeeze/) - - [ ] [Asyncio Tarantool Queue, Get In The Queue](http://highscalability.com/blog/2016/3/3/asyncio-tarantool-queue-get-in-the-queue.html) - - [ ] [When Should Approximate Query Processing Be Used?](http://highscalability.com/blog/2016/2/25/when-should-approximate-query-processing-be-used.html) - - [ ] [Google's Transition From Single Datacenter, To Failover, To A Native Multihomed Architecture]( http://highscalability.com/blog/2016/2/23/googles-transition-from-single-datacenter-to-failover-to-a-n.html) + - [ ] [PayPal 如何用 8 台虚拟机扛住 10 亿日交易量系统](http://highscalability.com/blog/2016/8/15/how-paypal-scaled-to-billions-of-transactions-daily-using-ju.html) + - [ ] [如何对大数据集去重](https://blog.clevertap.com/how-to-remove-duplicates-in-large-datasets/) + - [ ] [Etsy 的扩展和工程文化探究 Jon Cowie (video)](https://www.youtube.com/watch?v=3vV4YiqKm1o) + - [ ] [是什么造就了 Amazon 自己的微服务架构](http://thenewstack.io/led-amazon-microservices-architecture/) + - [ ] [压缩还是不压缩，是 Uber 面临的问题](https://eng.uber.com/trip-data-squeeze/) + - [ ] [异步 I/O Tarantool 队列](http://highscalability.com/blog/2016/3/3/asyncio-tarantool-queue-get-in-the-queue.html) + - [ ] [什么时候应该用近视查询处理?](http://highscalability.com/blog/2016/2/25/when-should-approximate-query-processing-be-used.html) + - [ ] [Google 从单数据中心到故障转移, 到本地多宿主架构的演变]( http://highscalability.com/blog/2016/2/23/googles-transition-from-single-datacenter-to-failover-to-a-n.html) - [ ] [Spanner](http://highscalability.com/blog/2012/9/24/google-spanners-most-surprising-revelation-nosql-is-out-and.html) - - [ ] [Egnyte Architecture: Lessons Learned In Building And Scaling A Multi Petabyte Distributed System](http://highscalability.com/blog/2016/2/15/egnyte-architecture-lessons-learned-in-building-and-scaling.html) - - [ ] [Machine Learning Driven Programming: A New Programming For A New World](http://highscalability.com/blog/2016/7/6/machine-learning-driven-programming-a-new-programming-for-a.html) - - [ ] [The Image Optimization Technology That Serves Millions Of Requests Per Day](http://highscalability.com/blog/2016/6/15/the-image-optimization-technology-that-serves-millions-of-re.html) - - [ ] [A Patreon Architecture Short](http://highscalability.com/blog/2016/2/1/a-patreon-architecture-short.html) - - [ ] [Tinder: How Does One Of The Largest Recommendation Engines Decide Who You'll See Next?](http://highscalability.com/blog/2016/1/27/tinder-how-does-one-of-the-largest-recommendation-engines-de.html) - - [ ] [Design Of A Modern Cache](http://highscalability.com/blog/2016/1/25/design-of-a-modern-cache.html) - - [ ] [Live Video Streaming At Facebook Scale](http://highscalability.com/blog/2016/1/13/live-video-streaming-at-facebook-scale.html) - - [ ] [A Beginner's Guide To Scaling To 11 Million+ Users On Amazon's AWS](http://highscalability.com/blog/2016/1/11/a-beginners-guide-to-scaling-to-11-million-users-on-amazons.html) - - [ ] [How Does The Use Of Docker Effect Latency?](http://highscalability.com/blog/2015/12/16/how-does-the-use-of-docker-effect-latency.html) - - [ ] [Does AMP Counter An Existential Threat To Google?](http://highscalability.com/blog/2015/12/14/does-amp-counter-an-existential-threat-to-google.html) - - [ ] [A 360 Degree View Of The Entire Netflix Stack](http://highscalability.com/blog/2015/11/9/a-360-degree-view-of-the-entire-netflix-stack.html) - - [ ] [Latency Is Everywhere And It Costs You Sales - How To Crush It](http://highscalability.com/latency-everywhere-and-it-costs-you-sales-how-crush-it) - - [ ] [Serverless (very long, just need the gist)](http://martinfowler.com/articles/serverless.html) - - [ ] [What Powers Instagram: Hundreds of Instances, Dozens of Technologies](http://instagram-engineering.tumblr.com/post/13649370142/what-powers-instagram-hundreds-of-instances) - - [ ] [Cinchcast Architecture - Producing 1,500 Hours Of Audio Every Day](http://highscalability.com/blog/2012/7/16/cinchcast-architecture-producing-1500-hours-of-audio-every-d.html) - - [ ] [Justin.Tv's Live Video Broadcasting Architecture](http://highscalability.com/blog/2010/3/16/justintvs-live-video-broadcasting-architecture.html) - - [ ] [Playfish's Social Gaming Architecture - 50 Million Monthly Users And Growing](http://highscalability.com/blog/2010/9/21/playfishs-social-gaming-architecture-50-million-monthly-user.html) - - [ ] [TripAdvisor Architecture - 40M Visitors, 200M Dynamic Page Views, 30TB Data](http://highscalability.com/blog/2011/6/27/tripadvisor-architecture-40m-visitors-200m-dynamic-page-view.html) - - [ ] [PlentyOfFish Architecture](http://highscalability.com/plentyoffish-architecture) - - [ ] [Salesforce Architecture - How They Handle 1.3 Billion Transactions A Day](http://highscalability.com/blog/2013/9/23/salesforce-architecture-how-they-handle-13-billion-transacti.html) - - [ ] [ESPN's Architecture At Scale - Operating At 100,000 Duh Nuh Nuhs Per Second](http://highscalability.com/blog/2013/11/4/espns-architecture-at-scale-operating-at-100000-duh-nuh-nuhs.html) - - [ ] See "Messaging, Serialization, and Queueing Systems" way below for info on some of the technologies that can glue services together + - [ ] [Egnyte: 构建和扩展 PB 级分布式系统架构的经验教训](http://highscalability.com/blog/2016/2/15/egnyte-architecture-lessons-learned-in-building-and-scaling.html) + - [ ] [机器学习驱动的编程: 新世界的新编程方式](http://highscalability.com/blog/2016/7/6/machine-learning-driven-programming-a-new-programming-for-a.html) + - [ ] [日服务数百万请求的图像优化技术](http://highscalability.com/blog/2016/6/15/the-image-optimization-technology-that-serves-millions-of-re.html) + - [ ] [Patreon 架构](http://highscalability.com/blog/2016/2/1/a-patreon-architecture-short.html) + - [ ] [Tinder: 推荐引擎是如何决定下一个你将会看到谁的?](http://highscalability.com/blog/2016/1/27/tinder-how-does-one-of-the-largest-recommendation-engines-de.html) + - [ ] [现代缓存设计](http://highscalability.com/blog/2016/1/25/design-of-a-modern-cache.html) + - [ ] [Facebook 实时视频流扩展](http://highscalability.com/blog/2016/1/13/live-video-streaming-at-facebook-scale.html) + - [ ] [在 Amazon AWS 上把服务扩展到 1100 万量级的新手教程](http://highscalability.com/blog/2016/1/11/a-beginners-guide-to-scaling-to-11-million-users-on-amazons.html) + - [ ] [对延时敏感的应用是否应该使用 Docker?](http://highscalability.com/blog/2015/12/16/how-does-the-use-of-docker-effect-latency.html) + - [ ] [AMP（Accelerated Mobile Pages）的存在是对 Google 的威胁么?](http://highscalability.com/blog/2015/12/14/does-amp-counter-an-existential-threat-to-google.html) + - [ ] [360 度解读 Netflix 技术栈](http://highscalability.com/blog/2015/11/9/a-360-degree-view-of-the-entire-netflix-stack.html) + - [ ] [延迟无处不在 - 如何搞定它？](http://highscalability.com/latency-everywhere-and-it-costs-you-sales-how-crush-it) + - [ ] [无服务器架构](http://martinfowler.com/articles/serverless.html) + - [ ] [是什么驱动着 Instagram: 上百个实例、几十种技术](http://instagram-engineering.tumblr.com/post/13649370142/what-powers-instagram-hundreds-of-instances) + - [ ] [Cinchcast 架构 - 每天处理 1500 小时的音频](http://highscalability.com/blog/2012/7/16/cinchcast-architecture-producing-1500-hours-of-audio-every-d.html) + - [ ] [Justin.Tv 实时视频播放架构](http://highscalability.com/blog/2010/3/16/justintvs-live-video-broadcasting-architecture.html) + - [ ] [Playfish's 社交游戏架构 - 每月五千万用户增长](http://highscalability.com/blog/2010/9/21/playfishs-social-gaming-architecture-50-million-monthly-user.html) + - [ ] [猫途鹰架构 - 40 万访客, 200 万动态页面访问, 30TB 数据](http://highscalability.com/blog/2011/6/27/tripadvisor-architecture-40m-visitors-200m-dynamic-page-view.html) + - [ ] [PlentyOfFish 架构](http://highscalability.com/plentyoffish-architecture) + - [ ] [Salesforce 架构 - 如何扛住 13 亿日交易量](http://highscalability.com/blog/2013/9/23/salesforce-architecture-how-they-handle-13-billion-transacti.html) + - [ ] [ESPN's 架构扩展](http://highscalability.com/blog/2013/11/4/espns-architecture-at-scale-operating-at-100000-duh-nuh-nuhs.html) + - [ ] 下面 『消息、序列化和消息系统』部分的内容会提到什么样的技术能把各种服务整合到一起 - [ ] Twitter: - [O'Reilly MySQL CE 2011: Jeremy Cole, "Big and Small Data at @Twitter" (video)](https://www.youtube.com/watch?v=5cKTP36HVgI) - - [Timelines at Scale](https://www.infoq.com/presentations/Twitter-Timeline-Scalability) - - For even more, see "Mining Massive Datasets" video series in the Video Series section. - - [ ] Practicing the system design process: Here are some ideas to try working through on paper, each with some documentation on how it was handled in the real world: - - review: [System Design from HiredInTech](http://www.hiredintech.com/system-design/) + - [时间线的扩展](https://www.infoq.com/presentations/Twitter-Timeline-Scalability) + - 更多内容可以查看视频部分的『大规模数据挖掘』视频系列。 + - [ ] 系统设计问题练习：下面有一些指导原则，每一个都有相关文档以及在现实中该如何处理。 + - 复习: [HiredInTech 的系统设计](http://www.hiredintech.com/system-design/) - [cheat sheet](https://github.com/jwasham/google-interview-university/blob/master/extras/cheat%20sheets/system-design.pdf) - - flow: - 1. Understand the problem and scope: - - define the use cases, with interviewer's help - - suggest additional features - - remove items that interviewer deems out of scope - - assume high availability is required, add as a use case - 2. Think about constraints: - - ask how many requests per month - - ask how many requests per second (they may volunteer it or make you do the math) - - estimate reads vs. writes percentage - - keep 80/20 rule in mind when estimating - - how much data written per second - - total storage required over 5 years - - how much data read per second - 3. Abstract design: - - layers (service, data, caching) - - infrastructure: load balancing, messaging - - rough overview of any key algorithm that drives the service - - consider bottlenecks and determine solutions - - Exercises: - - [Design a CDN network: old article](http://repository.cmu.edu/cgi/viewcontent.cgi?article=2112&context=compsci) - - [Design a random unique ID generation system](https://blog.twitter.com/2010/announcing-snowflake) - - [Design an online multiplayer card game](http://www.indieflashblog.com/how-to-create-an-asynchronous-multiplayer-game.html) - - [Design a key-value database](http://www.slideshare.net/dvirsky/introduction-to-redis) - - [Design a function to return the top k requests during past time interval]( https://icmi.cs.ucsb.edu/research/tech_reports/reports/2005-23.pdf) - - [Design a picture sharing system](http://highscalability.com/blog/2011/12/6/instagram-architecture-14-million-users-terabytes-of-photos.html) - - [Design a recommendation system](http://ijcai13.org/files/tutorial_slides/td3.pdf) - - [Design a URL-shortener system: copied from above](http://www.hiredintech.com/system-design/the-system-design-process/) - - [Design a cache system](https://www.adayinthelifeof.nl/2011/02/06/memcache-internals/) + - 流程: + 1. 理解问题和范围: + - 在面试官的帮助下定义用例 + - 提出附加功能的建议 + - 去掉面试官认定范围以外的内容 + - 假定高可用是必须的，而且要作为一个用例 + 2. 考虑约束: + - 问一下每月请求量 + - 问一下每秒请求量 (他们可能会主动提到或者让你算一下) + - 评估读写所占的百分比 + - 评估的时候牢记 2/8 原则 + - 每秒写多少数据 + - 总的数据存储量要考虑超过 5 年的情况 + - 每秒读多少数据 + 3. 抽象设计: + - 分层 (服务, 数据, 缓存) + - 基础设施: 负载均衡, 消息 + - 粗略的概括任何驱动整个服务的关键算法 + - 考虑瓶颈并指出解决方案 + - 练习: + - [设计一个 CDN 网络](http://repository.cmu.edu/cgi/viewcontent.cgi?article=2112&context=compsci) + - [设计一个随机唯一 ID 生成系统](https://blog.twitter.com/2010/announcing-snowflake) + - [设计一个在线多人卡牌游戏](http://www.indieflashblog.com/how-to-create-an-asynchronous-multiplayer-game.html) + - [设计一个 key-value 数据库](http://www.slideshare.net/dvirsky/introduction-to-redis) + - [设计一个函数获取过去某个时间段内前 K 个最高频访问的请求]( https://icmi.cs.ucsb.edu/research/tech_reports/reports/2005-23.pdf) + - [设计一个图片分享系统](http://highscalability.com/blog/2011/12/6/instagram-architecture-14-million-users-terabytes-of-photos.html) + - [设计一个推荐系统](http://ijcai13.org/files/tutorial_slides/td3.pdf) + - [设计一个短域名生成系统](http://www.hiredintech.com/system-design/the-system-design-process/) + - [设计一个缓存系统](https://www.adayinthelifeof.nl/2011/02/06/memcache-internals/) -- ### Papers - - These are Google papers and well-known papers. - - Reading all from end to end with full comprehension will likely take more time than you have. I recommend being selective on papers and their sections. - - [ ] [1978: Communicating Sequential Processes](http://spinroot.com/courses/summer/Papers/hoare_1978.pdf) - - [implemented in Go](https://godoc.org/github.com/thomas11/csp) - - [Love classic papers?](https://www.cs.cmu.edu/~crary/819-f09/) - - [ ] [2003: The Google File System](http://static.googleusercontent.com/media/research.google.com/en//archive/gfs-sosp2003.pdf) - - replaced by Colossus in 2012 +- ### 论文 + - 有 Google 的论文和一些知名的论文. + - 你很可能实在没时间一篇篇完整的读完他们。我建议可以有选择的读其中一些论文里的核心部分。 + - [ ] [1978: 通信顺序处理](http://spinroot.com/courses/summer/Papers/hoare_1978.pdf) + - [Go 实现](https://godoc.org/github.com/thomas11/csp) + - [喜欢经典的论文?](https://www.cs.cmu.edu/~crary/819-f09/) + - [ ] [2003: The Google 文件系统](http://static.googleusercontent.com/media/research.google.com/en//archive/gfs-sosp2003.pdf) + - 2012 年被 Colossus 取代了 - [ ] [2004: MapReduce: Simplified Data Processing on Large Clusters]( http://static.googleusercontent.com/media/research.google.com/en//archive/mapreduce-osdi04.pdf) - - mostly replaced by Cloud Dataflow? - - [ ] [2007: What Every Programmer Should Know About Memory (very long, and the author encourages skipping of some sections)](https://www.akkadia.org/drepper/cpumemory.pdf) - - [ ] [2012: Google's Colossus](https://www.wired.com/2012/07/google-colossus/) - - paper not available - - [ ] 2012: AddressSanitizer: A Fast Address Sanity Checker: - - [paper](http://static.googleusercontent.com/media/research.google.com/en//pubs/archive/37752.pdf) - - [video](https://www.usenix.org/conference/atc12/technical-sessions/presentation/serebryany) - - [ ] 2013: Spanner: Google’s Globally-Distributed Database: - - [paper](http://static.googleusercontent.com/media/research.google.com/en//archive/spanner-osdi2012.pdf) - - [video](https://www.usenix.org/node/170855) + - 大多被云数据流取代了? + - [ ] [2007: 每个程序员都应该知道的内存知识 (非常长，作者建议跳过某些章节来阅读)](https://www.akkadia.org/drepper/cpumemory.pdf) + - [ ] [2012: Google 的 Colossus](https://www.wired.com/2012/07/google-colossus/) + - 没有论文 + - [ ] 2012: AddressSanitizer: 快速的内存访问检查器: + - [论文](http://static.googleusercontent.com/media/research.google.com/en//pubs/archive/37752.pdf) + - [视频](https://www.usenix.org/conference/atc12/technical-sessions/presentation/serebryany) + - [ ] 2013: Spanner: Google 的分布式数据库: + - [论文](http://static.googleusercontent.com/media/research.google.com/en//archive/spanner-osdi2012.pdf) + - [视频](https://www.usenix.org/node/170855) - [ ] [2014: Machine Learning: The High-Interest Credit Card of Technical Debt](http://static.googleusercontent.com/media/research.google.com/en//pubs/archive/43146.pdf) - [ ] [2015: Continuous Pipelines at Google](http://static.googleusercontent.com/media/research.google.com/en//pubs/archive/43790.pdf) - - [ ] [2015: High-Availability at Massive Scale: Building Google’s Data Infrastructure for Ads](https://static.googleusercontent.com/media/research.google.com/en//pubs/archive/44686.pdf) - - [ ] [2015: TensorFlow: Large-Scale Machine Learning on Heterogeneous Distributed Systems](http://download.tensorflow.org/paper/whitepaper2015.pdf ) - - [ ] [2015: How Developers Search for Code: A Case Study](http://static.googleusercontent.com/media/research.google.com/en//pubs/archive/43835.pdf) + - [ ] [2015: 大规模高可用: 构建 Google Ads 的数据基础设施](https://static.googleusercontent.com/media/research.google.com/en//pubs/archive/44686.pdf) + - [ ] [2015: TensorFlow: 异构分布式系统上的大规模机器学习](http://download.tensorflow.org/paper/whitepaper2015.pdf ) + - [ ] [2015: 开发者应该如何搜索代码：用例学习](http://static.googleusercontent.com/media/research.google.com/en//pubs/archive/43835.pdf) - [ ] [2016: Borg, Omega, and Kubernetes](http://static.googleusercontent.com/media/research.google.com/en//pubs/archive/44843.pdf) -- ### Testing - - To cover: - - how unit testing works - - what are mock objects - - what is integration testing - - what is dependency injection - - [ ] [Agile Software Testing with James Bach (video)](https://www.youtube.com/watch?v=SAhJf36_u5U) - - [ ] [Open Lecture by James Bach on Software Testing (video)](https://www.youtube.com/watch?v=ILkT_HV9DVU) - - [ ] [Steve Freeman - Test-Driven Development (that’s not what we meant) (video)](https://vimeo.com/83960706) +- ### 测试 + - 涵盖了: + - 单元测试是如何工作的 + - 什么是模拟对象 + - 什么是集成测试 + - 什么是依赖注入 + - [ ] [James Bach 讲敏捷软件测试 (video)](https://www.youtube.com/watch?v=SAhJf36_u5U) + - [ ] [James Bach 软件测试公开课 (video)](https://www.youtube.com/watch?v=ILkT_HV9DVU) + - [ ] [Steve Freeman - 测试驱动的开发 (video)](https://vimeo.com/83960706) - [slides](http://gotocon.com/dl/goto-berlin-2013/slides/SteveFreeman_TestDrivenDevelopmentThatsNotWhatWeMeant.pdf) - - [ ] [TDD is dead. Long live testing.](http://david.heinemeierhansson.com/2014/tdd-is-dead-long-live-testing.html) - - [ ] [Is TDD dead? (video)](https://www.youtube.com/watch?v=z9quxZsLcfo) - - [ ] [Video series (152 videos) - not all are needed (video)](https://www.youtube.com/watch?v=nzJapzxH_rE&list=PLAwxTw4SYaPkWVHeC_8aSIbSxE_NXI76g) - - [ ] [Test-Driven Web Development with Python](http://www.obeythetestinggoat.com/pages/book.html#toc) - - [ ] Dependency injection: - - [ ] [video](https://www.youtube.com/watch?v=IKD2-MAkXyQ) - - [ ] [Tao Of Testing](http://jasonpolites.github.io/tao-of-testing/ch3-1.1.html) - - [ ] [How to write tests](http://jasonpolites.github.io/tao-of-testing/ch4-1.1.html) + - [ ] [测试驱动的开发已死. 测试不朽。](http://david.heinemeierhansson.com/2014/tdd-is-dead-long-live-testing.html) + - [ ] [测试驱动的开发已死? (video)](https://www.youtube.com/watch?v=z9quxZsLcfo) + - [ ] [视频系列 (152 个) - 并不都是必须 (video)](https://www.youtube.com/watch?v=nzJapzxH_rE&list=PLAwxTw4SYaPkWVHeC_8aSIbSxE_NXI76g) + - [ ] [Python：测试驱动的 Web 开发](http://www.obeythetestinggoat.com/pages/book.html#toc) + - [ ] 依赖注入: + - [ ] [视频](https://www.youtube.com/watch?v=IKD2-MAkXyQ) + - [ ] [测试之道](http://jasonpolites.github.io/tao-of-testing/ch3-1.1.html) + - [ ] [如何编写测试](http://jasonpolites.github.io/tao-of-testing/ch4-1.1.html) -- ### Scheduling - - in an OS, how it works - - can be gleaned from Operating System videos +- ### 调度 + - 在操作系统中是如何运作的 + - 在操作系统部分的视频里有很多资料 -- ### Implement system routines - - understand what lies beneath the programming APIs you use - - can you implement them? +- ### 实现系统例程 + - 理解你使用的系统 API 底层有什么 + - 你能自己实现它们么? -- ### String searching & manipulations - - [ ] [Search pattern in text (video)](https://www.coursera.org/learn/data-structures/lecture/tAfHI/search-pattern-in-text) +- ### 字符串搜索和操作 + - [ ] [文本的搜索模式 (video)](https://www.coursera.org/learn/data-structures/lecture/tAfHI/search-pattern-in-text) - [ ] Rabin-Karp (videos): - - [Rabin Karps Algorithm](https://www.coursera.org/learn/data-structures/lecture/c0Qkw/rabin-karps-algorithm) - - [Precomputing](https://www.coursera.org/learn/data-structures/lecture/nYrc8/optimization-precomputation) - - [Optimization: Implementation and Analysis](https://www.coursera.org/learn/data-structures/lecture/h4ZLc/optimization-implementation-and-analysis) + - [Rabin Karps 算法](https://www.coursera.org/learn/data-structures/lecture/c0Qkw/rabin-karps-algorithm) + - [预先计算的优化](https://www.coursera.org/learn/data-structures/lecture/nYrc8/optimization-precomputation) + - [优化: 实现和分析](https://www.coursera.org/learn/data-structures/lecture/h4ZLc/optimization-implementation-and-analysis) - [Table Doubling, Karp-Rabin](https://www.youtube.com/watch?v=BRO7mVIFt08&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=9) - - [Rolling Hashes, Amortized Analysis](https://www.youtube.com/watch?v=w6nuXg0BISo&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=32) - - [ ] Knuth-Morris-Pratt (KMP): - - [Pratt Algorithm](https://en.wikipedia.org/wiki/Knuth%E2%80%93Morris%E2%80%93Pratt_algorithm) - - [Tutorial: The Knuth-Morris-Pratt (KMP) String Matching Algorithm](https://www.youtube.com/watch?v=2ogqPWJSftE) - - [ ] Boyer–Moore string search algorithm - - [Boyer-Moore String Search Algorithm](https://en.wikipedia.org/wiki/Boyer%E2%80%93Moore_string_search_algorithm) - - [Advanced String Searching Boyer-Moore-Horspool Algorithms (video)](https://www.youtube.com/watch?v=QDZpzctPf10) - - [ ] [Coursera: Algorithms on Strings](https://www.coursera.org/learn/algorithms-on-strings/home/week/1) + - [滚动哈希](https://www.youtube.com/watch?v=w6nuXg0BISo&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=32) + - [ ] Knuth-Morris-Pratt (KMP) 算法: + - [Pratt 算法](https://en.wikipedia.org/wiki/Knuth%E2%80%93Morris%E2%80%93Pratt_algorithm) + - [教程: Knuth-Morris-Pratt (KMP) 字符串匹配算法](https://www.youtube.com/watch?v=2ogqPWJSftE) + - [ ] Boyer–Moore 字符串搜索算法 + - [Boyer-Moore字符串搜索算法](https://en.wikipedia.org/wiki/Boyer%E2%80%93Moore_string_search_algorithm) + - [Boyer-Moore-Horspool 高级字符串搜索算法 (video)](https://www.youtube.com/watch?v=QDZpzctPf10) + - [ ] [Coursera: 字符串的算法](https://www.coursera.org/learn/algorithms-on-strings/home/week/1) --- -## Final Review +## 终面 - This section will have shorter videos that can you watch pretty quickly to review most of the important concepts. - It's nice if you want a refresher often. - (More items will be added here) + 这一部分有一些短视频，你可以快速的观看和复习大多数重要概念。 + 这对经常性的巩固很有帮助。 -#### General: +#### 综述: -- [ ] Series of 2-3 minutes short subject videos (23 videos) +- [ ] 2-3 分钟的短视频系列 (23 个) - [Videos](https://www.youtube.com/watch?v=r4r1DZcx1cM&list=PLmVb1OknmNJuC5POdcDv5oCS7_OUkDgpj&index=22) -- [ ] Series of 2-5 minutes short subject videos - Michael Sambol (18 videos): +- [ ] 2-5 分钟的短视频系列 - Michael Sambol (18 个): - [Videos](https://www.youtube.com/channel/UCzDJwLWoYCUQowF_nG3m5OQ) -#### Sorts: +#### 排序: -- [ ] Merge Sort: https://www.youtube.com/watch?v=GCae1WNvnZM +- [ ] 归并排序: https://www.youtube.com/watch?v=GCae1WNvnZM -## Books +## 书籍 -### Mentioned in Google Coaching +### Google Coaching 里提到的 -**Read and do exercises:** +**阅读并做练习:** -- [ ] The Algorithm Design Manual (Skiena) - - Book (can rent on kindle): +- [ ] 算法设计手册 (Skiena) + - 书 (Kindle 上可以租到): - [Algorithm Design Manual](http://www.amazon.com/Algorithm-Design-Manual-Steven-Skiena/dp/1849967202) - - Half.com is a great resource for textbooks at good prices. - - Answers: - - [Solutions](http://www.algorithm.cs.sunysb.edu/algowiki/index.php/The_Algorithms_Design_Manual_(Second_Edition)) - - [Solutions](http://blog.panictank.net/category/algorithmndesignmanualsolutions/page/2/) - - [Errata](http://www3.cs.stonybrook.edu/~skiena/algorist/book/errata) + - Half.com 是一个资源丰富且性价比很高的在线书店. + - 答案: + - [解答](http://www.algorithm.cs.sunysb.edu/algowiki/index.php/The_Algorithms_Design_Manual_(Second_Edition)) + - [解答](http://blog.panictank.net/category/algorithmndesignmanualsolutions/page/2/) + - [勘误表](http://www3.cs.stonybrook.edu/~skiena/algorist/book/errata) - Once you've understood everything in the daily plan, and read and done exercises from the the books above, read and do exercises from the books below. Then move to coding challenges (further down below) + 一旦你理解了每日计划里的所有内容，就去读上面所列的书并完成练习，然后开始读下面所列的书并做练习，之后就可以开始实战写代码了（本文再往后的部分） -**Read first:** +**首先阅读:** - [ ] [Programming Interviews Exposed: Secrets to Landing Your Next Job, 2nd Edition](http://www.wiley.com/WileyCDA/WileyTitle/productCd-047012167X.html) -**Read second (recommended by many, but not in Google coaching docs):** +**然后阅读 (这本获得了很多推荐， 但是不在 Google coaching 的文档里):** - [ ] [Cracking the Coding Interview, 6th Edition](http://www.amazon.com/Cracking-Coding-Interview-6th-Programming/dp/0984782850/) - - If you see people reference "The Google Resume", it was a book replaced by "Cracking the Coding Interview". + - 如果你看到有人在看 "The Google Resume", 实际上它和 "Cracking the Coding Interview" 是同一个作者写的，而且后者是升级版。 -### Additional books +### 附加书单 - These were not suggested by Google but I added because I needed the background knowledge +这些没有被 Google 推荐阅读，不过我因为需要这些背景知识所以也把它们列在了这里。 - [ ] C Programming Language, Vol 2 - - [answers to questions](https://github.com/lekkas/c-algorithms) + - [练习的答案](https://github.com/lekkas/c-algorithms) - [ ] C++ Primer Plus, 6th Edition -- [ ] [The Unix Programming Environment](http://product.half.ebay.com/The-UNIX-Programming-Environment-by-Brian-W-Kernighan-and-Rob-Pike-1983-Other/54385&tg=info) +- [ ] [《Unxi 环境高级编程》 The Unix Programming Environment](http://product.half.ebay.com/The-UNIX-Programming-Environment-by-Brian-W-Kernighan-and-Rob-Pike-1983-Other/54385&tg=info) -- [ ] [Programming Pearls](http://www.amazon.com/Programming-Pearls-2nd-Jon-Bentley/dp/0201657880) +- [ ] [《编程珠玑》 Programming Pearls](http://www.amazon.com/Programming-Pearls-2nd-Jon-Bentley/dp/0201657880) - [ ] [Algorithms and Programming: Problems and Solutions](http://www.amazon.com/Algorithms-Programming-Solutions-Alexander-Shen/dp/0817638474) -### If you have time +### 如果你有时间 - [ ] [Introduction to Algorithms](https://www.amazon.com/Introduction-Algorithms-3rd-MIT-Press/dp/0262033844) - - Half.com is a great resource for textbooks at good prices. - [ ] [Elements of Programming Interviews](https://www.amazon.com/Elements-Programming-Interviews-Insiders-Guide/dp/1479274836) - - all code is in C++, if you're looking to use C++ in your interview - - good book on problem solving in general. + - 如果你希望在面试里用 C++ 写代码，这本书的代码全都是 C++ 写的 + - 通常情况下能找到解决方案的好书. -## Coding exercises/challenges +## 编码练习和挑战 -Once you've learned your brains out, put those brains to work. -Take coding challenges every day, as many as you can. +一旦你学会了理论基础，就应该把它们拿出来练练。 +尽量坚持每天做编码练习，越多越好。 -Programming Question Prep: +编程问题预备: -- [ ] [Great intro (copied from System Design section): Algorithm design:](http://www.hiredintech.com/algorithm-design/) -- [ ] [How to Find a Solution](https://www.topcoder.com/community/data-science/data-science-tutorials/how-to-find-a-solution/) -- [ ] [How to Dissect a Topcoder Problem Statement](https://www.topcoder.com/community/data-science/data-science-tutorials/how-to-dissect-a-topcoder-problem-statement/) -- [ ] [Mathematics for Topcoders](https://www.topcoder.com/community/data-science/data-science-tutorials/mathematics-for-topcoders/) -- [ ] [Dynamic Programming – From Novice to Advanced](https://www.topcoder.com/community/data-science/data-science-tutorials/dynamic-programming-from-novice-to-advanced/) +- [ ] [不错的介绍 (摘自 System Design 章节): 算法设计:](http://www.hiredintech.com/algorithm-design/) +- [ ] [如何找到解决方案](https://www.topcoder.com/community/data-science/data-science-tutorials/how-to-find-a-solution/) +- [ ] [如何剖析 Topcoder 题目描述](https://www.topcoder.com/community/data-science/data-science-tutorials/how-to-dissect-a-topcoder-problem-statement/) +- [ ] [Topcoders 里用到的数学](https://www.topcoder.com/community/data-science/data-science-tutorials/mathematics-for-topcoders/) +- [ ] [动态规划 – 从入门到精通](https://www.topcoder.com/community/data-science/data-science-tutorials/dynamic-programming-from-novice-to-advanced/) -- [MIT Interview Materials](https://courses.csail.mit.edu/iap/interview/materials.php) +- [MIT 面试材料](https://courses.csail.mit.edu/iap/interview/materials.php) -- [Exercises for getting better at a given language](http://exercism.io/languages) +- [针对编程语言本身的练习](http://exercism.io/languages) -Programming: +编码练习平台: - [LeetCode](https://leetcode.com/) - [TopCoder](https://www.topcoder.com/) -- [Project Euler (math-focused)](https://projecteuler.net/index.php?section=problems) +- [Project Euler (数学方向为主)](https://projecteuler.net/index.php?section=problems) - [Codewars](http://www.codewars.com) - [HackerRank](https://www.hackerrank.com/) - [Codility](https://codility.com/programmers/) - [InterviewCake](https://www.interviewcake.com/) - [InterviewBit](https://www.interviewbit.com/invite/icjf) -- [Mock interviewers from big companies](http://www.gainlo.co/) +- [模拟大公司的面试](http://www.gainlo.co/) -## Once you're closer to the interview +## 当你临近面试时 -- [ ] Cracking The Coding Interview Set 2 (videos): +- [ ] 搞定代码面试 (videos): - [Cracking The Code Interview](https://www.youtube.com/watch?v=4NIb9l3imAo) - - [Cracking the Coding Interview - Fullstack Speaker Series](https://www.youtube.com/watch?v=Eg5-tdAwclo) - - [Ask Me Anything: Gayle Laakmann McDowell (author of Cracking the Coding Interview)](https://www.youtube.com/watch?v=1fqxMuPmGak) + - [Cracking the Coding Interview - 全栈系列](https://www.youtube.com/watch?v=Eg5-tdAwclo) + - [Ask Me Anything: Gayle Laakmann McDowell (Cracking the Coding Interview 的作者)](https://www.youtube.com/watch?v=1fqxMuPmGak) -## Your Resume +## 你的简历 -- [Ten Tips for a (Slightly) Less Awful Resume](http://steve-yegge.blogspot.co.uk/2007_09_01_archive.html) -- Great stuff at the back of Cracking The Coding Interview +- [10 条小贴士让你写出一份还算不错的简历](http://steve-yegge.blogspot.co.uk/2007_09_01_archive.html) +- 这是搞定面试的第一个关键步骤 -## Be thinking of for when the interview comes +## 当面试来临的时候 - Think of about 20 interview questions you'll get, along the lines of the items below. - Have 2-3 answers for each - Have a story, not just data, about something you accomplished + 随着下面列举的问题思考下你可能会遇到的 20 个面试问题 + 每个问题准备 2-3 种回答 + 准备点故事，不要只是摆一些你完成的事情的数据，相信我，人人都喜欢听故事 -- Why do you want this job? -- What's a tough problem you've solved? -- Biggest challenges faced? -- Best/worst designs seen? -- Ideas for improving an existing Google product. -- How do you work best, as an individual and as part of a team? -- Which of your skills or experiences would be assets in the role and why? -- What did you most enjoy at [job x / project y]? -- What was the biggest challenge you faced at [job x / project y]? -- What was the hardest bug you faced at [job x / project y]? -- What did you learn at [job x / project y]? -- What would you have done better at [job x / project y]? +- 你为什么想得到这份工作？ +- 你解决过的最有难度的问题是什么？ +- 面对过的最大挑战是什么? +- 见过的最好或者最坏的设计是怎么样的? +- 对某项 Google 产品提出改进建议。 +- 你作为一个个体同时也是团队的一员，如何达到最好的工作状态? +- 你的什么技能或者经验是你的角色中不可或缺的?为什么？ +- 你在某份工作或某个项目中最享受的是什么? +- 你在某份工作或某个项目中面临过的最大挑战是什么? +- 你在某份工作或某个项目中遇到过的最蛋疼的 Bug 是什么样的？ +- 你在某份工作或某个项目中学到了什么？ +- 你在某份工作或某个项目中哪些地方还可以做的更好？ -## Have questions for the interviewer +## 问面试官的问题 - Some of mine (I already may know answer to but want their opinion or team perspective): + 我会问的一些：(可能我已经知道了答案但我想听听面试官的看法或者了解团队的前景): -- How large is your team? -- What is your dev cycle look like? Do you do waterfall/sprints/agile? -- Are rushes to deadlines common? Or is there flexibility? -- How are decisions made in your team? -- How many meetings do you have per week? -- Do you feel your work environment helps you concentrate? -- What are you working on? -- What do you like about it? -- What is the work life like? +- 团队多大规模? +- 开发周期是怎样的? 会使用瀑布流/极限编程/敏捷开发么? +- 经常会为 deadline 加班么? 或者是有弹性的? +- 团队里怎么做技术选型? +- 每周平均开多少次会? +- 你觉得工作环境有助于员工集中精力吗? +- 目前正在做什么工作? +- 喜欢这些事情吗? +- 工作期限是怎么样的? -## Once You've Got The Job +## 当你获得了梦想的职位 -Congratulations! +我还能说些什么呢，恭喜你！ -- [10 things I wish I knew on my first day at Google](https://medium.com/@moonstorming/10-things-i-wish-i-knew-on-my-first-day-at-google-107581d87286#.livxn7clw) +- [我希望在 Google 的第一天就知道的 10 件事](https://medium.com/@moonstorming/10-things-i-wish-i-knew-on-my-first-day-at-google-107581d87286#.livxn7clw) -Keep learning. +坚持继续学习。 -You're never really done. +得到这份工作只是一个开始。 --- @@ -1612,14 +1612,14 @@ You're never really done. above because it's just too much. It's easy to overdo it on a subject. You want to get hired in this century, right? -- [ ] **More Dynamic Programming** (videos) - - [ ] [6.006: Dynamic Programming I: Fibonacci, Shortest Paths](https://www.youtube.com/watch?v=OQ5jsbhAv_M&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=19) - - [ ] [6.006: Dynamic Programming II: Text Justification, Blackjack](https://www.youtube.com/watch?v=ENyox7kNKeY&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=20) +- [ ] **More 动态规划** (videos) + - [ ] [6.006: 动态规划 I: Fibonacci, Shortest Paths](https://www.youtube.com/watch?v=OQ5jsbhAv_M&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=19) + - [ ] [6.006: 动态规划 II: Text Justification, Blackjack](https://www.youtube.com/watch?v=ENyox7kNKeY&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=20) - [ ] [6.006: DP III: Parenthesization, Edit Distance, Knapsack](https://www.youtube.com/watch?v=ocZMDMZwhCY&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb&index=21) - [ ] [6.006: DP IV: Guitar Fingering, Tetris, Super Mario Bros.](https://www.youtube.com/watch?v=tp4_UXaVyx8&index=22&list=PLUl4u3cNGP61Oq3tWYp6V_F-5jb5L2iHb) - - [ ] [6.046: Dynamic Programming & Advanced DP](https://www.youtube.com/watch?v=Tw1k46ywN6E&index=14&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp) - - [ ] [6.046: Dynamic Programming: All-Pairs Shortest Paths](https://www.youtube.com/watch?v=NzgFUwOaoIw&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp&index=15) - - [ ] [6.046: Dynamic Programming (student recitation)](https://www.youtube.com/watch?v=krZI60lKPek&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp&index=12) + - [ ] [6.046: 动态规划 & Advanced DP](https://www.youtube.com/watch?v=Tw1k46ywN6E&index=14&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp) + - [ ] [6.046: 动态规划: All-Pairs Shortest Paths](https://www.youtube.com/watch?v=NzgFUwOaoIw&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp&index=15) + - [ ] [6.046: 动态规划 (student recitation)](https://www.youtube.com/watch?v=krZI60lKPek&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp&index=12) - [ ] **Advanced Graph Processing** (videos) - [ ] [Synchronous Distributed Algorithms: Symmetry-Breaking. Shortest-Paths Spanning Trees](https://www.youtube.com/watch?v=mUBmcbbJNf4&list=PLUl4u3cNGP6317WaSNfmCvGym2ucw3oGp&index=27) @@ -1641,7 +1641,7 @@ You're never really done. Sit back and enjoy. "netflix and skill" :P -- [ ] [List of individual Dynamic Programming problems (each is short)](https://www.youtube.com/playlist?list=PLrmLmBdmIlpsHaNTPP_jHHDx_os9ItYXr) +- [ ] [List of individual 动态规划 problems (each is short)](https://www.youtube.com/playlist?list=PLrmLmBdmIlpsHaNTPP_jHHDx_os9ItYXr) - [ ] [x86 Architecture, Assembly, Applications (11 videos)](https://www.youtube.com/playlist?list=PL038BE01D3BAEFDB0)