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.         long n; cin >> n;
  8.         bool v[101] = {0};
  9.         long total(0);
  10.         for(long p = 0; p < n; p++){
  11.             long x; cin >> x;
  12.             total += 1 - v[x];
  13.             v[x] = 1;
  14.         }
  15.  
  16.         cout << total << '\n';
  17.     }
  18.     return 0;
  19. }
Success #stdin #stdout 0.01s 5312KB
comments (?)
stdin
copy 
3
3
1 2 3
5
3 1 4 1 5
1
1
stdout
copy 
3
4
1
https://ideone.com/5QBvol
language:
C++14 (gcc 8.3)
created:
19 hours 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!