https://www.acmicpc.net/problem/10972
#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
#define fastio ios::sync_with_stdio(0), cin.tie(0), cout.tie(0)
using namespace std;
int32_t main() {
fastio;
int n; cin >> n;
vector<int> v(n);
for(int i = 0; i < n; i++) cin >> v[i];
if(next_permutation(v.begin(), v.end())){
for(auto&c : v) cout << c << ' ';
cout << "\n";
}
else cout << -1 << "\n";
return 0;
}
순열 stl인 next_permutation을 활용해주면 됩니다.