Programs

#include <stdio.h>

#define BITS sizeof(int) * 8 // Total bits required to represent integer

int main()

{

   int num, msb;

   // Input number from user

   printf("Enter any number: ");

   scanf("%d", &num);

   // Move first bit of 1 to highest order

   msb = 1 << (BITS - 1);

   // Perform bitwise AND with msb and num

   if (num & msb)

       printf("MSB of %d is set (1).", num);

   else

       printf("MSB of %d is unset (0).", num);

   return 0;

}