Submission

Score: 100

User: pann

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2026-10-03 04:05:48

#include <iostream>
using namespace std;

int main(){
    string str;
    cin >> str;
    for (int i = 0; i < 26; i++){
        int count = 0;
        for (int j = 0; j < str.length(); j++){
            if (str[j] == (char)('A'+i)){
                count++;
            }
        }
        if (count == 1){
            cout << (char)('A'+i);
            break;
        }
    }
    return 0;
}