Submission

Score: 100

User: DIce

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.003 second

Submitted On: 2026-10-13 20:08:41

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

int main(){

    string s;
    cin>>s;

    int cnt=0;
    sort(s.begin(),s.end());
    for(int i=0;i<s.size();i+=1){
        for(int j=0;j<s.size();j+=1){
            if(s[i]==s[j]){
                cnt+=1;
            }
        }
        if(cnt==1){
            cout<<s[i];
            return 0;
        }
        cnt=0;
    }

}