Submission

Score: 100

User: thanakorn

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2026-09-26 10:45:37

#include<iostream>
using namespace std;

int main(){
	string n;
	int ans='Z';
	cin>>n;
	for(int i=0;i<n.length();i++){
		int k=0;
		if(n[i]<ans){
			for(int j=0;j<n.length();j++){
				if(n[i]==n[j] && i!=j){
					k++;
				}
			}
			if(k==0){
				ans=n[i];
			}
		}
	}
	cout<<(char)ans;
}