// Control statements: if, if/else, switch/case, while, do/while, for
// live demo
#include <stdio.h>

int main()
{
	int a = 3;

	switch(a-1)
	{
		case 0: 
			printf("zero\n");
			break;
		case 1:
			printf("one\n");
			break;
		case 2: 
			printf("two\n");
			break;
		case 3:
			printf("three\n");
			//break;
		case 4: 
			printf("four\n");
			break;
		default:
			printf("none\n");
			break;
	}

	if (0)
	{
		printf("TRUE!!!\n");
	}
	else 
	{
		printf("FALSE!\n");
	}

	while (a>0)
	{
		printf("Noooo!\n");
		a--;
	}

	do
	{
		printf("doing it\n");
		a--;
	} while (a > -2);

	int sum = 0;
	int b;
	for (a = 0, b = 1; a < 5; a++, ++b)
	{
		sum += a;
	}
	printf("sum = %d\nb=%d\n", sum,b);

	return 0;
}