Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- #include <iostream>
- using namespace std;
- int main()
- {
- int n;
- cin>>n;
- if(n%2==0)
- cout<<n/2*n/2<<endl;
- else
- cout<<n/2*(n+1)/2<<endl;
- for(int i=1;i<=n/2;i++)
- for(int j=n/2+1;j<=n;j++)
- cout<<i<<" "<<j<<endl;
- return 0;
- }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement