C program to reverse a number#include <stdio.h>
int main()
{
int n=321,reverse=0;
printf("before reverse = %d\n",n);
while(n!=0){
reverse = reverse*10 + n%10;
n=n/10;
}
printf("after reverse = %d",reverse);
return 0;
}
a) before reverse = 321
After reverse = 123
b)before reverse = 321
After reverse = 120
c)before reverse = 129
After reverse = 321
d)before reverse = 321
After reverse = 125