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  1. #include<iostream>
  2. using namespace std;
  3.  
  4. int main(){
  5.  
  6.     int n;
  7.     cin>>n;
  8.  
  9.     int arr[n];
  10.  
  11.     for(int i=0; i<n; i++){
  12.         cin>>arr[i];
  13.     }
  14.  
  15.     //precompute
  16.     int hash[13] = {0};
  17.     for(int i=0; i<n; i++){
  18.         hash[arr[i]] += 1;
  19.     }
  20.  
  21.     int q; 
  22.     cin>>q;
  23.     while(q--){
  24.         int number;
  25.         cin>>number;
  26.         //fetching
  27.         cout<<hash[number]<<endl;
  28.     }
  29.  
  30.     return 0;
  31. }
Success #stdin #stdout 0s 5312KB
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https://ideone.com/tNm6Fb
language:
C++ (gcc 8.3)
created:
9 hours ago
visibility:
public

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