[백준] 10972 다음 순열

10972번: 다음 순열

#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
int main() {
    int n;
    cin >> n;
    vector<int> a(n);
    for (int i=0; i<n; i++) {
        cin >> a[i];
    }
    if (next_permutation(a.begin(),a.end())) {
        for (int i=0; i<n; i++) {
            cout << a[i] << ' ';
        }
    } else {
        cout << "-1";
    }
    cout << '\n';
    return 0;
}