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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define ll long long
  4. int main()
  5. {
  6.     int n;
  7.     cin >> n;
  8.     int arr[n];
  9.     for (int i = 0; i < n; i++) cin >> arr[i];
  10.     sort(arr, arr + n);
  11.     int cnt = 1;
  12.     for (int i = 0; i < n - 1; i++){
  13.         if (arr[i] != arr[i + 1])
  14.             cnt++;
  15.     }
  16.     cout << cnt << endl;
  17. }
  18.  
Success #stdin #stdout 0.01s 5220KB
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Standard input is empty
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https://ideone.com/C3buNn
language:
C++14 (gcc 8.3)
created:
8 hours ago
visibility:
public

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