Submission

Score: 100

User: anonymous

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.004 second

Submitted On: 2026-09-30 20:40:20

#include <bits/stdc++.h>

using namespace std;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    char str[205];
        cin >> str;

    int cnt[26] = {0};
    for(int i=0 ; str[i] != '\0' ; i++ )cnt[str[i] - 'A']++;

    for(int i = 0 ; i < 26 ; i++ )
    {
        if(cnt[i] == 1){
            cout << (char)('A' + i);
            break;
        }
    }
    return 0;

}