Inverse Integer

inverse_integer.c

//
//  main.c
//  InverseNumber
//
//  Created by JAE SEUNG KOO on 7/4/15.
//  Copyright (c) 2015 JAE SEUNG KOO. All rights reserved.
//

#include <stdio.h>

void inverse_num(int);

int main(int argc, const char * argv[]) {
    int num = 0;
    
    printf("input number : ");
    scanf("%d", &num);
    for(;num%10==0;num=num/10);
    
    if(num < 0){
        num *= -1;
        printf("-");
    }
    
    inverse_num(num);
    
    return 0;
}

void inverse_num(int num){
    if(num == 0)
        return;
    printf("%d", num%10);
    inverse_num(num/10);
}