arr rev using rec

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>
#define size 9
char save(char arr[size])
{
    printf("%s\n", arr);

    return 0;
}
char reverse(char arr[size], int start, int end)
{

    if (start > end) {
        //printf("%s", arr);
        return save(arr);
    }
    else {
        char temp = arr[end];
    arr[end] = arr[start];
    arr[start] = temp;
     return reverse(arr, start + 1, end - 1);

    }



}
int main()
{
    char arr[size] = "blackcar";

    int start = 0;
    int end = 7;
    reverse(arr, start, end);
    //printf("%s", array);


    return 0;
}