LeetCode: K-th arrangement [60]
Title Description
Given set [1,2,3, ..., n], a total of all the elements n! Permutations.
Arranged in order of size lists all cases, and 11 markers, when when n 3 =, all arranged as follows:
"123"
"132"
"213"
"231"
"312"
"321"
A given n and k, returns the k-th order.
Description:
Given n ranges [1, 9].
K is given range [1, n!].
Example 1:
Input: n = 3, k = 3
Output: "213"
Example 2:
Input: n = 4, k = 9
Output: "2314"
Topic analysis
Java solution to a problem