Submission

Score: 20

User: nicekrittaphat

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-11 16:18:06

#include<iostream>
using namespace std;

int main(){
    string txt;
    int count1=0;
    cin>>txt;
    char result;
    for(int i=0;i<txt.size();i++){
        for(int j=i+1;j<txt.size();j++){
            if(txt[i]==txt[j]){
                count1+=1;
            }
        }
        if(count1==0){
            cout<<txt[i];
            return 0;
        }
        count1=0;
    }

}