Thread: Hey there, me again, another simple program just bugging me, unable to complete

this program takes the input of the user (integer) and reverses the integer and then thats the output but the one problem is that for negatives the reverse output is meant to put the minus sign at the end of the reversed integer but i just cant seem to get the program to do so.
for example:
i enter in:
9876
output:
6789
i enter in negative integer:
-9876
output is suppose to be:
6789-

any help would be great thanks

Code:

#include <stdio.h>
#include <stdlib.h>
int  main ()
{
    int number, right_digit;    
    printf("Enter your number. \n");
    scanf("%i", &number);
    


do
{

    if(number < 0)
    {
        
        right_digit = -number % 10;
        printf("%i", right_digit);
        number =  number / 10;
        
    }
        

    else
    {
    
    
        right_digit = number % 10;
        printf("%i", right_digit);
        number =  number / 10;
    }        
}
        while(number != 0);

    
        
        printf("\n");
    
    
        return 0;
    }

If you really must put the minus at the end, then I would just output a hyphen as the last thing.

Code:

int neg = number < 0;
if (neg)
   number = -number;

// do the reversing
if (neg)
   puts("-");

You could also just treat the numbers as a string, and reverse the string, but I guess that would be bad for the homework assignment.

Its not really a homework its just an exercise from a book im trying to learn

If its possible how would i reverse a string i tryed to that but it jus wouldnt work

Originally Posted by Hezzuess

Its not really a homework its just an exercise from a book im trying to learn

"Homework" is work meant to help you learn, whether it's assigned to you by a professor or by yourself.

Originally Posted by Hezzuess

If its possible how would i reverse a string i tryed to that but it jus wouldnt work

Post your attempt and we can help you fix it.

alright i understand the homework policy, is it possible to reverse an integer if its positive and if negative reverse the positioning of the '-' at the end of the integer. for example if i enter '-567' i normally get '-7-6-5' but i want to get '765-' is this possible with the number being an integer

or read question 5 on the book of pics i posted thank you

whiteflags addressed this in post #3 - was that advice not sufficient?