Question

Given positive integer num_insects, write a while loop that prints that number doubled up to, but without exceeding 100. Follow each number with a space. Ex: If num_insects == 8, print: 8 16 32 64

num_insects = 8 # Must be >= 1

Answer 1

Pseudocode:

int num_insects;

printf(" Enter any number ");
scanf("%d",&num_insects);

while(num_insects>=1&&num_insects<100)
   {
       printf("%d ",num_insects);
       num_insects=num_insects*2;
   }

program :

#include<stdio.h>
void main()
{
   int num_insects;
   printf(" Enter any number ");
   scanf("%d",&num_insects);
   if(num_insects<1) /* input number must be greater then 0 */
   printf(" Please enter a number greater than zero");
   while(num_insects>=1&&num_insects<100)   /* loop condition to check for a number condition */
   {
       printf("%d ",num_insects);
       num_insects=num_insects*2; /* doubling the number */
   }
}

Screen shots:

Output: