#include <stdio.h>
#include <stdlib.h>
 
int main() {
    int *arr;
    int n, i;
 
    // Step 1: Allocate memory dynamically
    printf("Enter number of elements: ");
    scanf("%d", &n);
 
    arr = (int*) malloc(n * sizeof(int));  // allocate memory
    if (arr == NULL) {
        printf("Memory allocation failed!\n");
        return 1;
    }
 
    // Step 2: Input array elements
    printf("\nEnter %d elements:\n", n);
    for (i = 0; i < n; i++) {
        printf("Element %d: ", i + 1);
        scanf("%d", &arr[i]);
    }
 
    // Step 3: Display the array
    printf("\nArray elements are:\n");
    for (i = 0; i < n; i++) {
        printf("%d ", arr[i]);
    }
 
    // Step 4: Free the allocated memory
    free(arr);
    arr = NULL;  // good practice to set pointer to NULL after freeing
 
    printf("\n\nMemory successfully freed.\n");
 
    return 0;
}