Submission

Score: 100

User: Nitro_Legacy

Problemset: สตริงซ้ำซ้ำ

Language: cpp

Time: 0.002 second

Submitted On: 2026-09-24 20:16:47

#include <bits/stdc++.h>
using namespace std;
int main(){
  string s1, s2;
  cin >> s1 >> s2;
  int a1[52] = {};
  int a2[52] = {};
  for (int i = 0; i < s1.size(); i++){
    if (s1[i] < 97){
      a1[s1[i] - 'A']++;
    } else {
      a1[s1[i] - 'a' + 26]++;
    }
  }
  for (int i = 0; i < s2.size(); i++){
    if (s2[i] < 97){
      a2[s2[i] - 'A']++;
    } else {
      a2[s2[i] - 'a' + 26]++;
    }
  }
  for (int i = 0; i < 52; i++){
    if (a1[i] > 0 && a2[i] > 0){
      if (i < 26){
        cout << char('A' + i) << " ";
      } else {
        cout << char('a' + i - 26) << " ";
      }
    }
  }
  return 0;
}