rite a function, reverseDigit, that takes an integer as a parameter and returns the number with its digits reversed. For example: the value of reverseDigit (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.

following are the code in c language

#include / / header file

int reverseDigit (int n); / / prototype of reverseDigit function

int main () / / main method

{

int n; / / variable declaration

printf ("Enter a number to reverse/n");

scanf ("%d", &n); / / input value by user

int t=reverseDigit (n); / / calling reverseDigit function

printf ("the value of reverseDigit (%d) ", n);

printf (" is %d", t); / / display reverse digit

return 0;

}

int reverseDigit (int n) / / function definition of reverseDigit function

{

int r=0;

while (n!=0) / / iterating over the loop

{

r = r * 10;

r = r + n%10;

n = n/10;

}

return (r); / / return the reverse digit

}

Explanation:

In this we call a function reverseDigit, from the main function after calling control moves to the definition of reverseDigit, function, the while loop is iterating. In the while loop, we find the remainder r when number is divided by 10 then it will multiplied by 10 and add previous remainder after that number will be updated as n/10. Then function will return number r and print them in main function.

output

Enter a number to reverse

12345

the value of reverseDigit (12345) is 54321