[置顶] 求第k个排列组合（Permutation Sequence）

60. Permutation Sequence

My Submissions

Question Editorial Solution

Total Accepted: 52210  Total Submissions: 208943  Difficulty: Medium

The set [1,2,3,…,n] contains a total of n! unique permutations.

By listing and labeling all of the permutations in order,
We get the following sequence (ie, for n = 3):

1. "123"
2. "132"
3. "213"
4. "231"
5. "312"
6. "321"

Given n and k, return the kth permutation sequence.

Note: Given n will be between 1 and 9 inclusive.

Subscribe to see which companies asked this question

Show Tags

Show Similar Problems

下面这是我分析的示意图：

下面是代码实现：