/**
 * CONVERT A DECIMAL TO OCTAL IN C++ codebind.com
 * 
 */
  
#include <iostream>
#include<cmath>
using namespace std;

void DecToOct(int decnum){

  int digits=1;
  int howbig=1;

  // check to see how many digits
  while(1){
      if((8*howbig)>decnum){
          break;
        }else{
          howbig*=8;
          digits++;
        }
    }

  // using binary to get octal
  for(int i=digits;i>0;i--)
    cout<<((decnum>>((i-1)*3))&7);
}

void DecToQuat(int decnum){
  int digits=1;
  int howbig=1;

  // check to see how many digits
  while(1){
      if((4*howbig)>decnum){
          break;
        }else{
          howbig*=4;
          digits++;
        }
    }

  // using binary to get quat
  for(int i=digits;i>0;i--)
    cout<<((decnum>>((i-1)*2))&3);
}



int main(){

  int decimalnum;
  cout<<"Enter the decimal to be converted:";
  cin>>decimalnum;
  DecToOct(decimalnum);
  cout<<endl;
  DecToQuat(decimalnum);

  return 0;
}

/*
OUTPUT
Enter the decimal to be converted:16
20
*/

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