next_permutation函数的应用

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,m;
    int a[10000];
    cin>>n>>m;
    for (int i = 0; i < n; i ++ )cin>>a[i];
    for (int i = 0; i < m; i ++ )next_permutation(a,a+n);

    for (int i = 0; i < n; i ++ )cout<<a[i]<<' ';



    return 0;
}