Submission

Score: 100

User: helloskibidi

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-05 09:46:10

#include <bits/stdc++.h>
using namespace std;

int main(){
    string n;
    cin >> n;

    vector<int> x(26,0);

    for(char i : n){
        x[i - 'A'] ++;
    }

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

}