UVa 00637 - Booklet Printing

This problem is an adhoc problem that asks to you to design a system to print folding booklets. The problem description and test cases can be found here.

Code

#include<iostream>

using namespace std;
int main(){
 
 while(1){
  int nop;
  cin>>nop;
  if(!nop) break;
  cout<<"Printing order for "<<nop<<" pages:\n";
  int sheet=nop/4;
  if(nop%4)sheet++;
  int side=sheet*4;
  int magicno=1+side;
  int pgno=1;
  for(int i=1;i<=sheet;i++){
   int a=magicno-pgno;
   int b=pgno;
   pgno++;
   int c=pgno;
   int d=magicno-pgno;
   pgno++;
   if(a>nop) a=0;
   if(b>nop) b=0;
   if(c>nop) c=0;
   if(d>nop) d=0;
   
   if(a) cout<<"Sheet "<<i<<", front: "<<a<<", "<<b<<"\n";
   else cout<<"Sheet "<<i<<", front: "<<"Blank"<<", "<<b<<"\n"; 
   if(c!=0 && d!=0) cout<<"Sheet "<<i<<", back : "<<c<<", "<<d<<"\n";
   else if(c) cout<<"Sheet "<<i<<", back : "<<c<<", "<<"Blank"<<"\n";
   else if (d) cout<<"Sheet "<<i<<", back : "<<"Blank"<<", "<<d<<"\n";
   
   
   }
  
  }
  return 0;
}