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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. int main() {
  6.     int n, q;
  7.     cin >> n >> q;
  8.  
  9.     vector<int> freq(n + 1, 0);
  10.  
  11.     // Read array and count frequency
  12.     for (int i = 0; i < n; i++) {
  13.         int x;
  14.         cin >> x;
  15.         freq[x]++;
  16.     }
  17.  
  18.     // Process queries
  19.     while (q--) {
  20.         int x;
  21.         cin >> x;
  22.         cout << freq[x] << endl;
  23.     }
  24.  
  25.     return 0;
  26. }
Success #stdin #stdout 0.01s 5292KB
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https://ideone.com/NXSXQC
language:
C++14 (gcc 8.3)
created:
15 hours ago
visibility:
public

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