Submission

Score: 100

User: MyYammGods

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-05 21:26:31

#include <bits/stdc++.h>
using namespace std;
int main (){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    string word;
    cin >> word;
    int position[30] = {0};
    int count[30] {0};
    for(int i=0;i<word.size();i++){
        position[word[i] - 'A'] = 1;
        count[word[i]-'A']++;
    }
    for(int i=0;i<27;i++){
        if(position[i]==1&&count[i]==1){
            cout << (char)(i + 'A');
            break;
        }
    }
}