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Spocoman

08. Even Times

Spocoman
Jan 21st, 2024
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  1. #include <iostream>
  2. #include <string>
  3. #include <map>
  4.  
  5. using namespace std;
  6.  
  7. int main() {
  8.     int n, number;
  9.     cin >> n;
  10.  
  11.     map<int, int> numbers;
  12.  
  13.     for (int i = 0; i < n; i++) {
  14.         cin >> number;
  15.         numbers[number]++;
  16.     }
  17.  
  18.     for(auto& n:numbers) {
  19.         if (n.second % 2 == 0) {
  20.             cout << n.first << endl;
  21.             break;
  22.         }
  23.     }
  24.     return 0;
  25. }
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