Hi!
I think I have a solution.
it lays on geometrical thoughts.
please give me answers on tests from 10-...
any help, please.

#include<iostream>
using namespace std;
int main() {
  int n;
  cin>>n;
  cout<<n/4+1;
  return 0;
}

Edited by author 28.07.2009 16:43

N = 18

answer is 3
in your solution it`s 5...

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