Submission

Score: 30

User: SonnyHappy108

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.003 second

Submitted On: 2026-04-16 13:29:33

#include <iostream>
using namespace std;
//3
int main(){
	string a;
	cin >> a;
	short int b[26]={0};
	for(char i:a){
		b[i-'A']++;
	}
	for(char i:a){
		if(b[i-'A']==1){
			cout << i;
			return 0;
		}
	}
}