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  1. #include "bits/stdc++.h"
  2. #define ll               long long
  3.  
  4. using namespace std;
  5.  
  6.  
  7. void SOLVE(){
  8.     int n;
  9.     cin>>n;
  10.     vector<int>v(n);
  11.     for(int i=0;i<n;i++){
  12.         cin>>v[i];
  13.     }
  14.     sort(v.begin(),v.end());
  15.     int cnt=1;
  16.     for(int i=1;i<n;i++){
  17.         if(v[i]!=v[i-1])cnt++;
  18.     }
  19.     cout<<cnt<<endl;
  20. }
  21.  
  22. signed main(){
  23.     int T=1;
  24. //    cin>>T;
  25.     while(T--)
  26.         SOLVE();
  27.  
  28.     return 0;
  29. }
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/E9oqN2
language:
C++14 (gcc 8.3)
created:
336 days ago
visibility:
secret

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