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  1. #include<bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int n, a[100005], b[1000006];
  6.  
  7. int main(){
  8.     cin >> n;
  9.     for(int i = 1; i <= n; i++){
  10.         cin >> a[i];
  11.     }
  12.     for(int i = 1; i <= n; i++){
  13.         int j = a[i] + 100000;
  14.         b[j]++;
  15.     }
  16.     for(int i = 1; i <= n; i++){
  17.         cout << a[i] << ' ' << b[a[i] + 100000] << '\n';
  18.     }
  19. }
  20.  
  21.  
Success #stdin #stdout 0s 5316KB
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https://ideone.com/yiCZT7
language:
C++14 (gcc 8.3)
created:
9 hours ago
visibility:
public

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