// Pantea Aria
// malloc and array example

#include <stdio.h>
#include <stdlib.h>

// Function prototypes
int *allocate_marks(int size);
void print_marks(int marks[], int size);

int main(void) {
    int size;

    printf("Enter number of marks: ");
    scanf("%d", &size);

    // TODO 1:
    // Call allocate_marks and store the returned pointer
    int *marks = NULL;

    // TODO 2:
    // Check if marks is NOT NULL
    // If it is valid:
    //   - Call print_marks
    //   - Free the allocated memory

    return 0;
}

// This function should:
// - Allocate memory for 'size' integers
// - Check if malloc returned NULL
// - Initialise each element with some value
// - Return the pointer
int *allocate_marks(int size) {

    // TODO 3:
    // Allocate memory using malloc

    // TODO 4:
    // Check if memory allocation failed
    // If so, print "Out of memory" and return NULL

    // TODO 5:
    // Use a loop to initialise each element
    // Example idea: marks[i] = i * 2;

    // TODO 6:
    // Return the pointer

}

// This function should print all elements
void print_marks(int marks[], int size) {

    // TODO 7:
    // Use a loop to print each element on a new line

}