lookup_test.c

#include <stdio.h>

int main()
{
	int x;
	char dummy;
	char* months[] = {
		"January",
		"February",
		"March",
		"April",
		"May",
		"June",
		"July",
		"August",
		"September",
		"October",
		"November",
		"December"
	};
	scanf_s("%d%c", &x, &dummy);
	if (x > 12 || x <= 0)
	{
		printf("%s", "Error");
		getchar();
		getchar();
		return 0;
	}
	printf("%s", months[x - 1]);
	getchar();
	getchar();
	return 1;
}

lookup_test2.c

#include <stdio.h>

int main()
{
	int x;
	char dummy;
	char* morse[] = {
		"-----",
		".----",
		"..---",
		"...--",
		"....-",
		".....",
		"-....",
		"--...",
		"---..",
		"----.",
	};
	while (1)
	{
		printf("%s", "Dial a digit\n");
		scanf_s("%d", &x);
		if (x == 99)
			return 1;
		if (x > 9 || x < 0)
		{
			printf("%s", "Error\n");
			getchar();
			continue;
		}
		printf("%s\n", morse[x]);
		getchar();
	}
}