Question

C++ program that reads a positive integer number from a user and displays all binary numbers from 0 to the number.

For the program, you can assume that the input number is a number between 0 and 100.

Sample Run 1: Assume that the user typed the following number.

5

This is the correct output of your program.

000

001

010

011

100

101

Sample Run 2: Assume that the user typed the following number.

0

This is the correct output of your program.

0

Sample Run 3: Assume that the user typed the following number.

3

This is the correct output of your program.

00

01

10

11

Answer 1

Code:

#include<iostream>
using namespace std;
int main(){
   int n,s=2,c=1,x[8],j,i,h,w;
   cout<<"enter a number:";                //taking input from user.
   cin>>n;
   while(s<=n){
       s=s*2;
       c=c+1;
   }
   w=c;
   for(i=0;i<=n;i++){
       h=i;
       for(j=0; h>0; j++){  
            x[j]=h%2;  
            h= h/2;                       //finding binary numbers.
        }
       for(w;w>j;w--)
           cout<<0;
       w=c;
        for(j=j-1 ;j>=0 ;j--){  
           cout<<x[j];                    //printing binary numbers.
        }
       cout<<endl;  
   }
}

Output: