又学到一课了！呵呵
#include <iostream>
#include <algorithm>

using namespace std;
int main()
{
	int line;
	int num[1024]={0};
	int n,k;
	cin>>line;
	while(line>0)
	{
		cin>>n>>k;
		for(int i=0;i<n;i++)
			//cin>>num[i];
			scanf("%d",&num[i]);
		while(k>0)
		{
			k--;
			next_permutation(num,num+n);
		}
		for(int j=0;j<n;j++)
		printf("%d ",num[j]);
		cout<<endl;
		line--;
	}
	return 0;
}