Submission

Score: 100

User: sulinx

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-21 12:45:35

#include <bits/stdc++.h>

using namespace std;

int main(){
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);

    string str;
    cin >> str;
    int count = 0;

    for(int i = 0;i<26;i++){
        for(int j = 0;j<str.length();j++){
            if(str[j] == 'A' + i){
                count++;
            }
        }
        if(count!=1){
            count = 0;
        }else if(count == 1){
            cout << char('A' + i);
            return 0;
        }
    }
}