Submission

Score: 100

User: 38408

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2026-10-06 13:19:29

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

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

    int count[26] = {};

    for(int i = 0; i < word.size(); i++)
    {
        count[word[i] - 'A']++;
    }
    for(int i = 0; i < 26; i++)
    {
        if(count[i] == 1)
        {
            cout << char(i + 'A');
            break;
        }
    }

    return 0;
}