Submission

Score: 20

User: ackub

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.003 second

Submitted On: 2026-10-10 11:43:52

#include<bits/stdc++.h>
using namespace std;

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

    for (int i=0;i<s.length();i++){
        bool check=true;
        for (int j=i+1;j<s.length();j++){
            if (s[i]==s[j]){check=false;}
        }if (check){cout<<s[i];break;}
    }
}