Submission

Score: 100

User: SRW

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-07 19:51:57

#include <bits/stdc++.h>
using namespace std;
int main(){
    string t;
    cin >> t;
    char best = 0;                    
    for (int i = 0; i < t.length(); i++){
        int cnt = 0;                  
        for (int j = 0; j < t.length(); j++){
            if (t[i] == t[j]) cnt++;
        }
        if (cnt == 1 && (best == 0 || t[i] < best)){
            best = t[i];
        }
    }
    cout << best;
}