Question

Write a algorthim only by using while loop

That uses a function, reverseDigit. The function takes an integer as a parameter and returns the number with its digits reversed. For example, the value ofreverseDigit(12345) is 54321; the value of reverseDigit(5600) is 65; the value of reverseDigit(7008) is 8007; and the value of reverseDigit(-532) is -235.

Answer 1

/* program to reverse an integer number.*/

#include <stdio.h>

/* function:   reverseNum

    to reverse an integer number.

*/

int reverseNum(int num)

{

    int sum=0,rem;

    while(num > 0)

    {

        rem=num%10;

        sum=(sum*10)+rem;

        num=num/10;

    }

    return sum;

}

int main()

{

    int n;

    printf("\nEnter an integer number :");

    scanf("%d",&n);

    printf("\nReverse Number is : %d\n",reverseNum(n));

    return 0;

}