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

1.2 KiB
Raw Blame History

id, title, challengeType, forumTopicId, dashedName
id title challengeType forumTopicId dashedName
a3566b1109230028080c9345 范围内的数字求和 5 16083 sum-all-numbers-in-a-range

--description--

给出一个含有两个数字的数组,我们需要写一个函数,让它返回这两个数字间所有数字(包含这两个数字)的总和。注意,较小数不一定总是出现在数组的第一个元素。

例如,sumAll([4,1]) 应返回 10,因为从 1 到 4包含 1、4的所有数字的和是 10

--hints--

sumAll([1, 4]) 应返回一个数字。

assert(typeof sumAll([1, 4]) === 'number');

sumAll([1, 4]) 应返回 10。

assert.deepEqual(sumAll([1, 4]), 10);

sumAll([4, 1]) 应返回 10。

assert.deepEqual(sumAll([4, 1]), 10);

sumAll([5, 10]) 应返回 45。

assert.deepEqual(sumAll([5, 10]), 45);

sumAll([10, 5]) 应返回 45。

assert.deepEqual(sumAll([10, 5]), 45);

--seed--

--seed-contents--

function sumAll(arr) {
  return 1;
}

sumAll([1, 4]);

--solutions--

function sumAll(arr) {
  var sum = 0;
  arr.sort(function(a,b) {return a-b;});
  for (var i = arr[0]; i <= arr[1]; i++) {
    sum += i;
  }
  return sum;
}