#include <stdio.h> 

void reverseArray(int arr[], int n) { 

 int start = 0; 

 int end = n - 1; 

 while (start < end) { 

 int temp = arr[start]; 

 arr[start] = arr[end];  arr[end] = temp; 

 start++; 

 end--; 

 } 

} 

int main() { 

 int arr[] = {1, 2, 3, 4, 5}; 

 int n = sizeof(arr) / sizeof(arr[0]); 

 printf("Original Array: ");

 for (int i = 0; i < n; i++) { 

 printf("%d ", arr[i]);

 } 

 reverseArray(arr, n); 

 printf("\nReversed Array: "); 

 for (int i = 0; i < n; i++) { 

 printf("%d ", arr[i]);

 } 

 return 0; 

}