Submission

Score: 30

User: qwert

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-10 11:48:22

#include <iostream>
#include <string>
using namespace std;

int main()
{
	int r=0,n,k[20]={0};
	string a;
	
	cin>>a;
	
	n=a.length();
	
	for(int i=0; i<n; i++){
		for(int j=0; j<n; j++){
			if(a[i]==a[j]){
				k[i]++;
			}
		}
	}
	for(int i=0; i<n; i++){
		if(k[i]==1){
			cout<<a[i];
			return 0;
		}
	}
	
}