#include <stdio.h>
 
int main() {
    int arr[5] = {10, 20, 30, 40, 50};
    int *ptr;
 
    ptr = arr; // Pointer points to the first element of array
 
    printf("Pointer Arithmetic Demonstration:\n");
 
    printf("Initial pointer address: %p, value: %d\n", ptr, *ptr);
 
    // Increment pointer
    ptr++;
    printf("After increment (ptr++): %p, value: %d\n", ptr, *ptr);
 
    // Increment again
    ptr++;
    printf("After another increment (ptr++): %p, value: %d\n", ptr, *ptr);
 
    // Decrement pointer
    ptr--;
    printf("After decrement (ptr--): %p, value: %d\n", ptr, *ptr);
 
    return 0;
}