全排列

#include<iostream>
#include<algorithm>
using namespace std;

const int N = 10010;

int n,m;
int a[N]; 

int main()
{
    cin>>n>>m;
    for(int i=0;i<n;i++)cin>>a[i];
    while(m--)
        next_permutation(a,a+n);

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

    return 0;
}