Submission

Score: 20

User: PROb221

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.002 second

Submitted On: 2025-10-09 19:34:08

//c1_bkk66_5
#include <iostream>
#include <string>
using namespace std;
int main() {
  bool pass;
  string str;
  cin >> str;
  int i,j,len=str.length();
  for(i=0;i<len;i++) {
    pass=true;//1 means true, 0 means false
    for(j=i+1;j<len;j++) {
      if(str[i]==str[j]) {
        pass=false;break;
      }
    }
    if(pass==true){cout<<str[i];break;}
  }
  return 0;
}