Submission

Score: 20

User: Dark_kingdom

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-12 13:14:49

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

int main()
{
	string s;
	cin>>s;

	
	for(int i = 0; i<s.length();i++)
	{
		for(int j =i+1; j<s.length(); j++)
		{
			if(s[i] != s[j] && j==s.length()-1)
			{
				cout<<s[i];
				return 0;
			}
			else if(s[i] == s[j])
			{
				break;
			}
			 
		}
		
	}
	
	return 0;
}