Submission

Score: 90

User: Nuttykub

Problemset: สุ่มสลับ

Language: cpp

Time: 0.190 second

Submitted On: 2026-10-02 15:08:20

#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin >> n;
    string s = "";
    for (int i = 0;i < n;i++){
        s+=char('A'+i);
    }
    string t;
    cin >> t;
    if (t==s) {
        cout << 1;
        return 0;
    } 
    int ct = 1;
    while(next_permutation(s.begin(),s.end())){
        ct++;
        if (t == s) break;
    }
    cout << ct;
    
}