freeCodeCamp/curriculum/challenges/chinese/10-coding-interview-prep/rosetta-code/combinations.md

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id title challengeType videoUrl
5958469238c0d8d2632f46db 组合 5

--description--

任务:

给定非负整数m和n 以排序顺序生成从0 到n-1的整数的所有大小m个 组合 (每个组合被排序并且整个表被排序)。

例:

3梳子5是

 0 1 2
0 1 3
0 1 4
0 2 3
0 2 4
0 3 4
1 2 3
1 2 4
1 3 4
2 3 4

--hints--

combinations是一种功能。

assert(typeof combinations === 'function');

combinations(3, 5)应返回[[0, 1, 2], [0, 1, 3], [0, 1, 4], [0, 2, 3], [0, 2, 4], [0, 3, 4], [1, 2, 3], [1, 2, 4], [1, 3, 4], [2, 3, 4]]

assert.deepEqual(combinations(testInput1[0], testInput1[1]), testOutput1);

combinations(4, 6)应返回[[0,1,2,3], [0,1,2,4], [0,1,2,5], [0,1,3,4], [0,1,3,5], [0,1,4,5], [0,2,3,4], [0,2,3,5], [0,2,4,5], [0,3,4,5], [1,2,3,4], [1,2,3,5], [1,2,4,5], [1,3,4,5], [2,3,4,5]]

assert.deepEqual(combinations(testInput2[0], testInput2[1]), testOutput2);

--solutions--