reverse the position of integer digits?

Question

i have to reverse the position of integer like this

input = 12345

output = 54321

i made this but it gives wrong output e.g 5432

#include         


        

Answer 1

If you try it once as an example, you'll see your error.

Input: 12

first loop:

out: 12%10 = 2 / 1 = 2
i = 100
test: 12/100 = 0 (as an integer)

aborts one too early.

One solution could be testing

(num % i) != num

Just as one of many solutions.