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15654.cpp
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78 lines (54 loc) · 1 KB
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//
// 15654_1.cpp
// algo
//
// Created by 박효정 on 2021/09/22.
//
//
// 15654.cpp
// algo
//
// Created by 박효정 on 2021/09/22.
//
#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
using namespace std;
int n,m;
vector<int>vis(8);
vector<int>ve;
vector<string>str;
void dfs(){
if(str.size()==m){
for(int i=0;i<str.size();i++){
cout<<str[i]<<' ';
}
cout<<"\n";
return;
}
for(int j=0;j<ve.size();j++){
if(vis[j]==0){
vis[j]=1;
str.push_back(to_string(ve[j]));
dfs();
vis[j]=0;
str.pop_back();
}
}
}
int main(){
cin.tie(0);
cout.tie(0);
std::ios::sync_with_stdio(false);
cin>>n>>m;
for(int i=0;i<n;i++){
int input;
cin>>input;
ve.push_back(input);
}
fill(vis.begin(), vis.end(), 0);
sort(ve.begin(), ve.end());
dfs();
return 0;
}