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  1. #include <iostream>
  2. #include <unordered_map>
  3.  
  4. using namespace std;
  5.  
  6. int main() {
  7.  
  8.  
  9.     int t;
  10.     cin >>t ;
  11.     while(t--)
  12.     {
  13.        unordered_map<int, int> mp;
  14.        int n;
  15.        cin >> n;
  16.  
  17.        while(n--)
  18.        {
  19.            int num;
  20.            cin >>num;
  21.            if(mp.find(num)== mp.end())
  22.            {
  23.                mp[num] = 1;
  24.            } 
  25.            else
  26.            {
  27.                mp[num]++;
  28.            }
  29.        }
  30.  
  31.        for(auto it = mp.begin(); it!=mp.end(); it++)
  32.        {
  33.           cout << it->first << " " << it->second <<endl; 
  34.        }
  35.     }
  36.  
  37.  
  38.  
  39.  
  40. 	//code
  41. 	return 0;
  42. }
Time limit exceeded #stdin #stdout 5s 15240KB
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https://ideone.com/e03RwM
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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