Submission

Score: 40

User: picture

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-13 14:57:23

#include<bits/stdc++.h>

using namespace std ;


int main(){

  string n ;
  vector<char>nu;

  cin >> n ;
  set<char>p(n.begin(),n.end());

 for (char c : p){

   nu.push_back(c);






 }
  
 for(int i = 0 ; i < nu.size() ; i++){
    cout << nu[i];
    return 0 ;


 }
}