Submission

Score: 100

User: spammer_destroyer

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.003 second

Submitted On: 2025-10-12 12:54:07

//c1_bkk66_5
#include <iostream>
#include <string>
using namespace std;
int main() {
  string str;
  int rent[26]={},i;
  cin >> str;
  int len=str.length();
  for(i=0;i<len;i++) {
    rent[(int)(str[i]-65)]++;
  }
  for(i=0;i<26;i++) {
    if(rent[i]==1) {
      cout << (char)('A'+i);return 0;
    }
  }
  return 0;
}