#include <stdio.h>

void increment(int *num);

int main(void) {

    int number;
    // declaring a pointer, pointing to the address of number
    int *number_ptr = &number;
    
    printf("Enter number to increment: ");
    scanf("%d", &number);
    
    printf("The original number is %d\n", number);
    
    increment(number_ptr);
   
    printf("The number is now incremented to: %d\n", number);

    return 0;
}

void increment(int *num) {
    *num = *num + 1;
}