Reverse an Array In-Place

Code

#include <stdio.h>

void reverse_array(int arr[], int n) {
    int temp = 0;
   
      if(n%2==0)
      {
        for(int index = 0;index < n/2 ;index++)
        {
          temp = arr[index];
          arr[index]=arr[n-1-index];
          arr[n-1-index] = temp;
        }
      }
      else
      {
        for(int index = 0;index < (n/2) ;index++)
        {
          temp = arr[index];
          arr[index]=arr[n-1-index];
          arr[n-1-index] = temp;
        }
      }
}

int main() {
    int n;
    scanf("%d", &n);

    int arr[100];
    for (int i = 0; i < n; i++) {
        scanf("%d", &arr[i]);
    }

    reverse_array(arr, n);

    for (int i = 0; i < n; i++) {
        printf("%d", arr[i]);
        if(i < n-1){
        	printf(" ");
        }
    }
    return 0;
}

Solving Approach