Silly lab for ITS :)

test.c

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

int main(int argc, char** argv)
{
	(void)argc;
	(void)argv;

	unsigned int array_size;
	printf("Enter array size: ");
	scanf("%u", &array_size);
	int a[array_size];
	for (unsigned int i = 0; i < array_size; i++)
	{
		printf("Enter array element #%d: ", i);
		scanf("%d", &a[i]);
	}

	int *b = NULL;
	unsigned int size = 0;
	for (unsigned int i = 0; i < array_size; i++)
	{
		unsigned int found = 0;
		for (unsigned int j = 0; j < size; j++)
			if (*(b + j) == a[i])
				found++;
		if (found == 0)
		{
			b = realloc(b, (++size) * sizeof(int));
			*(b + size - 1) = a[i];
		}
	}

	for (unsigned int i = 0; i < size; i++)
		printf("%d\n", *(b + i));

	free(b);

	return EX_OK;
}