[Lec. #7] Exc. 1

#include <stdio.h>
#include <stdlib.h> // must use to use malloc or the program will crash

void inputArray(int* arr, int n);
void printArray(int* array, int n);

int main()
{
    printf("How many numbers do you want:\n");

    int input; scanf_s("%d", &input);

    if (input <= 0) {
        printf("Invalid input. Please enter a positive number.\n");
        return 1;
    }

    int *arr = malloc(input * sizeof(int));

    if (arr == NULL)
    {
        printf("Memory allocation failed.\n");
        return 1;
    }

    inputArray(arr, input);
    printArray(arr, input);

    free(arr);
    return 0;
}

void inputArray(int* arr, int n)
{
    printf("Enter %d integers\n", n);

    for (int i = 0; i < n; i++) {
        scanf_s("%d", &arr[i]);
    }
}

void printArray(int* arr, int n)
{
    printf("\nValues are: ");

    for (int i = 0; i < n; i++) {
        printf("%d%s", arr[i], (i == n - 1) ? "." : ", ");
    }

    printf("\n\n");
}