Write a program to reverse a 5 digit number using function?

Answer 1

#include <stdio.h>

#include <stdlib.h>

#include <math.h>

int reversenum(int original);

int main(int argc, char * argv[]){

int numval;

if(argc != 2){

printf("Please specify a number.\n");

exit(1);

}

numval = atoi(argv[1]);

printf("The reverse of %i is %i\n", numval, reversenum(numval));

return 0;

}

int reversenum(int original){

int returnval = 0;

int val = abs(original);

int sign = sgn(original);

while(val > 0){

returnval *= 10;

returnval += val % 10;

original /= 10;

}

returnval *= sign;

return returnval;

}