Submission

Score: 100

User: kinzap

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-12 15:37:41

#include <iostream>
using namespace std;

int a[26];
string n;
char b;
 
int main(){
    cin >> n;
    for(int i = 0;i<n.length();i++){
        a[n[i]-'A']++;
    }
    // for(int i = 0;i<26;i++){
        
    //         cout << a[i] << " ";
           
    // }
    for(int i = 0;i<26;i++){
        if(a[i]==1){
            b = 'A' +i;
            cout << b;
            return 0 ;
        }
    }
}