Check whether the given Number is Palindrome or not using Bitwise Operator

#include 

#include 

#include 

#define size 8

int is_palindrome(unsigned char[]);

void main()

{

    int num, num1 = 0, i = 0, j = SIZE - 1, res;

    unsigned char c[size];

    clrscr();

    printf("Enter a number(max 255)");

    scanf("%d", &num);

    num1 = num;

    while (num != 0)

    {

        c[j] = num&1;

        j--;

        num = num>>1;

    }

    printf("The number %d in binary is:", num1);

    for (i = 0;i < size;i++)

    {

        printf("%d", c[i]);

    }

    res = is_palindrome(c);    

    if (res == 0)

    {

        printf("\n Number is palindrome\n");

    }

    else

    {

        printf("\n Number is not palindrome\n");

    }

}

int is_palindrome(unsigned char c[])

{

    char temp[size];

    int i, j, flag = 0;

    for (i = 0, j = size - 1;i < size, j >= 0;i++, j--)

    {

        temp[j] = c[i];

    }

    for (i = 0;i < size;i++)

    {

        if (temp[i] != c[i])

        {

            flag = 1;

        }

    }

    return flag;

}

Output

                  Enter a number(max 255)153

The number 153 in binary is:10011001

Number is palindrome

Enter a number(max 255)24

The number 24 in binary is:00011000

Number is palindrome

Swap two Numbers using Bitwise Operators

#include 

#include 

#include 

void swap(int*, int *);

void main()

{

    int num1, num2;

    printf("\nEnter two numbers:");

    scanf("%d %d", &num1, &num2);

printf("\nThe numbers before swapping are Number1= %d Number2 = %d", num1, num2);

    swap(&num1, &num2);        

    printf("\nThe numbers after swapping are Number1= %d Number2 = %d", num1, num2);

}

 void swap(int *x, int *y)

{

    *x = *x ^ *y;

    *y = *x ^ *y;

    *x = *x ^ *y;

}

Output

Enter two numbers:45 76

The numbers before swapping are Number1= 45 Number2=76

The numbers after swapping are Number1= 76 Number2=45