Submission

Status:

PPPPPPPPPP

Subtask/Task Score:

100/100

Score: 100

User: Prima

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.005 second

Submitted On: 2026-10-13 21:32:15

#include<iostream>
using namespace std;

int main(){
    string n;
    int c[26] = {0};
    cin >> n;

    for(int i=0; i<n.length(); i++){
        c[n[i]-'A']++;
    }

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

    return 0;
}