fork(1) download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. int main() {
  4.     int t;
  5.     cin >> t;
  6.     while (t--){
  7.         int n;
  8.         int a[n];
  9.         cin >> n;
  10.         if (n == 1){
  11.             cout << 1 << '\n';
  12.             continue;
  13.         }
  14.         for (int i = 0; i < n; i++){
  15.             cin >> a[i];
  16.         }
  17.         sort (a, a+n);
  18.         int brojac = 1;
  19.         for (int i = 1; i < n; i++){
  20.             if (a[i] != a[i-1]){
  21.                 brojac++;
  22.             }
  23.         }
  24.         cout << brojac << '\n';
  25.  
  26.     }
  27.     return 0;
  28. }
Success #stdin #stdout 0.01s 5324KB
comments (?)
stdin
copy 
1
2
1 2
stdout
copy 
2
https://ideone.com/JQq08u
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!