question4.cc

#define _CRT_SECURE_NO_WARNINGS

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

void fillArray(int* arr, int size);
void printArray(int* arr, int size);

int main()
{
    int size = 0;

    printf("Enter a number: ");
    scanf("%d", &size);
    getchar();

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

    fillArray(arr, size);
    printArray(arr, size);

    free(arr);

    getchar();
    return 0;
}
/*
* Fills the array
* input: pointer to the array, array size
* output: -
*/
void fillArray(int* arr, int size)
{
    int i = 0, j = 0;

    for (i = 0; i < size; i++)
    {
        for (j = 0; j < size; j++)
        {
            *(arr + i * size + j) = (i + 1) * (j + 1);
        }
    }
}
/*
* Prints the array elements =D
* input: pointer to the array, array size (num of rows)
* output: -
*/
void printArray(int* arr, int size)
{
    int i = 0, j = 0;

    for (i = 0; i < size; i++)
    {
        for (j = 0; j < size; j++)
        {
            printf("\t%d", *(arr + i * size + j));
        }
        printf("\n");
    }
}