Oliver Eyton-Williams ee1e8abd87
feat(curriculum): restore seed + solution to Chinese (#40683)
* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
2021-01-12 19:31:00 -07:00

2.9 KiB
Raw Blame History

id, title, challengeType, forumTopicId, dashedName
id title challengeType forumTopicId dashedName
a24c1a4622e3c05097f71d67 找出元素在排序后数组中的索引 5 16094 where-do-i-belong

--description--

第一个参数的数组在排序后,将一个值(第二个参数)插入该数组,并使数组保持有序。返回这个新插入元素的最小索引值(应为一个数字)。

例如,getIndexToIns([1,2,3,4], 1.5) 应该返回 1 因为 1.5 大于 1(索引为 0且小于 2(索引为 1

同样地,getIndexToIns([20,3,5], 19) 应该返回 2。因为数组排序后会变成 [3,5,20],而 19 小于 20(索引为 2且大于 5(索引为 1

--hints--

getIndexToIns([10, 20, 30, 40, 50], 35) 应返回 3

assert(getIndexToIns([10, 20, 30, 40, 50], 35) === 3);

getIndexToIns([10, 20, 30, 40, 50], 35) 应返回一个数字。

assert(typeof getIndexToIns([10, 20, 30, 40, 50], 35) === 'number');

getIndexToIns([10, 20, 30, 40, 50], 30) 应返回 2

assert(getIndexToIns([10, 20, 30, 40, 50], 30) === 2);

getIndexToIns([10, 20, 30, 40, 50], 30) 应返回一个数字。

assert(typeof getIndexToIns([10, 20, 30, 40, 50], 30) === 'number');

getIndexToIns([40, 60], 50) 应返回 1

assert(getIndexToIns([40, 60], 50) === 1);

getIndexToIns([40, 60], 50) 应返回一个数字。

assert(typeof getIndexToIns([40, 60], 50) === 'number');

getIndexToIns([3, 10, 5], 3) 应返回 0

assert(getIndexToIns([3, 10, 5], 3) === 0);

getIndexToIns([3, 10, 5], 3) 应返回一个数字。

assert(typeof getIndexToIns([3, 10, 5], 3) === 'number');

getIndexToIns([5, 3, 20, 3], 5) 应返回 2

assert(getIndexToIns([5, 3, 20, 3], 5) === 2);

getIndexToIns([5, 3, 20, 3], 5) 应返回一个数字。

assert(typeof getIndexToIns([5, 3, 20, 3], 5) === 'number');

getIndexToIns([2, 20, 10], 19) 应返回 2

assert(getIndexToIns([2, 20, 10], 19) === 2);

getIndexToIns([2, 20, 10], 19) 应返回一个数字。

assert(typeof getIndexToIns([2, 20, 10], 19) === 'number');

getIndexToIns([2, 5, 10], 15) 应返回 3

assert(getIndexToIns([2, 5, 10], 15) === 3);

getIndexToIns([2, 5, 10], 15) 应返回一个数字。

assert(typeof getIndexToIns([2, 5, 10], 15) === 'number');

getIndexToIns([], 1)应该返回 0

assert(getIndexToIns([], 1) === 0);

getIndexToIns([], 1) 应返回一个数字。

assert(typeof getIndexToIns([], 1) === 'number');

--seed--

--seed-contents--

function getIndexToIns(arr, num) {
  return num;
}

getIndexToIns([40, 60], 50);

--solutions--

function getIndexToIns(arr, num) {
  arr = arr.sort((a, b) => a - b);

  for (let i = 0; i < arr.length; i++) {
    if (arr[i] >= num) {
      return i;
    }
  }

  return arr.length;
}

getIndexToIns([40, 60], 50);