You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

20 lines
486 B

This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

#include <bits/stdc++.h>
using namespace std;
int main() {
int n, i;
cin >> n;
int a[n];
//输入数据
for (i = 0; i < n; i++)
cin >> a[i];
//而STL中有两个函数分别是 prev_permutation 和 next_permutation.
//它们是现成的求上一个和下一个字典序的序列的。
prev_permutation(a, a + n);//求上一个全排列
//输出
for (i = 0; i < n; i++)
cout << a[i] << " ";
return 0;
}