fork download
copy 
  1. #include <iostream>
  2. #include <array>
  3.  
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8.     int d;
  9.     cin >> d;
  10.  
  11.     unsigned short int sticks[256];
  12.  
  13.     fill(sticks, sticks+256, 0);
  14.  
  15.     while(d--)
  16.     {
  17.         unsigned short length;
  18.         cin >> length;
  19.  
  20.         sticks[length]++;
  21.     }
  22.  
  23.     int sum=0;
  24.  
  25.     for(int i=0; i<256; i++)
  26.     {
  27.         sum+=sticks[i]/3;
  28.     }
  29.  
  30.     cout << sum << endl;
  31.  
  32.     return 0;
  33. }
  34.  
Success #stdin #stdout 0.01s 5540KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
0
https://ideone.com/phkLAN
language:
C++14 (gcc 8.3)
created:
2 years 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!