std::next_permutation, std::prev_permutation 순열 생성

#include <algorithm>

#include <iostream>

#include <vector>

using namespace std;

int main()

{

vector<int> vec{1,2,3};

do

{

for(int v : vec)

{

cout << v << ',';

}

cout << endl;

}while(next_permutation(vec.begin(), vec.end()));

return 0;

}

출력 결과 >>

Start

1,2,3,
1,3,2,
2,1,3,
2,3,1,
3,1,2,
3,2,1,

0

Finish