Submission

Score: 100

User: rice_ot

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-14 10:38:51

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

int main(){

    string x; cin>>x;
    map<char, int> word;
    for(auto i : x){
        word[i]++;
    }
    for(auto& i : word){
        if(i.second == 1){
            cout<<i.first;
            return 0;
        }
    }
}