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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. int d[1005], a, dem;
  4.  
  5. int main()
  6. {
  7.     ios_base::sync_with_stdio(0);
  8.     cin.tie(0); cout.tie(0);
  9.  
  10.     while(cin >> a)
  11.     {
  12.         d[a]++;
  13.     }
  14.     for(int i = 1; i <= 1000; i++)
  15.     {
  16.         if (d[i] > 0)
  17.         {
  18.             dem++;
  19.         }
  20.     }
  21.     cout << dem << endl;
  22.     return 0;
  23. }
  24.  
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/SQjmMw
language:
C++14 (gcc 8.3)
created:
20 hours ago
visibility:
public

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