Submission

Score: 100

User: SonnyHappy108

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2026-04-11 10:57:42

#include <bits/stdc++.h>
using namespace std;
//done : 1
int main(){
	int alpha[26]={0};
	string a;
	cin >> a;
	for(char i:a){
		alpha[i-'A']++;
	}
	int k=-1;
	for(int j:alpha){
		k++;
		if (j==1){
			cout << (char)(k+'A');
			return 0;
		}
	}
}