Reverse an Array In-Place

Code

#include <stdio.h>

void reverse_array(int arr[], int n) {
   int start =0 ,end =n-1,temp ;
   while(start<end)
   {
         // swapping 
          temp = arr[start] ;
            arr[start] =arr[end];
           arr[end]= temp ;
           start++;
           end--;
    }
   }
 
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