#define APPLET

#ifdef APPLET
#define CHAR_HEIGHT 15
#define CHAR_WIDTH  8

static int cursor_x = 0, cursor_y = CHAR_HEIGHT;

lputchar(char c)
{
    switch(c) {
      case '\n': {
	  cursor_x = 0;
	  cursor_y += CHAR_HEIGHT;
        }
        break;
      default: {
	  putchar(cursor_x,cursor_y,c);
	  cursor_x += CHAR_WIDTH;
        }
	break;
    }
}

lputs(char *s)
{
    while (*s) lputchar(*s++);
}

/* lputd - output decimal number */
lputd(n) {
        char res[12];  /* can hold decimal ascii for signed 32-bit int */
	int pos = 10;
	int neg = 0;

	res[11] = '\0';
	if (n < 0) {
	        neg = 1;
		n = -n;
	}
	do {
	    res[pos--] = n%10 + '0';
	    n = n/10;
        } while (n);
	pos++;
	if (neg) res[--pos] = '-';
	lputs(res + pos);
}

#define putchar lputchar
#define puts lputs
#define putd lputd
#endif /* APPLET */


int min(int i,int j)
{
    if (i < j) return i;
    return j;
}

int max(int i,int j)
{
    if (i < j) return j;
    return i;
}

typedef struct point { int x,y; } point;
typedef struct rect { point pt1, pt2; } rect;

point addpoint(point p1, point p2) {	/* add two points */
	p1.x += p2.x;
	p1.y += p2.y;
	return p1;
}

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

rect canonrect(rect r) {		/* canonicalize rectangle coordinates */
	rect temp;

	temp.pt1.x = min(r.pt1.x, r.pt2.x);
	temp.pt1.y = min(r.pt1.y, r.pt2.y);
	temp.pt2.x = max(r.pt1.x, r.pt2.x);
	temp.pt2.y = max(r.pt1.y, r.pt2.y);
	return temp;
}

point makepoint(int x, int y) {		/* make a point from x and y components */
	point p;

	p.x = x;
	p.y = y;
	return p;
}

rect makerect(point p1, point p2) {	/* make a rectangle from two points */
	rect r;

	r.pt1 = p1;
	r.pt2 = p2;
	return canonrect(r);
}

int ptinrect(point p, rect r) {		/* is p in r? */
	return p.x >= r.pt1.x && p.x < r.pt2.x
		&& p.y >= r.pt1.y && p.y < r.pt2.y;
}

struct odd {char a[3]; } y = {'a', 'b', 0};

odd(struct odd y) {
	struct odd x = y;
/*	printf("%s\n", x.a); */
	puts(x.a);
	putchar('\n');
}

main() {
	int i;
	point x, origin = { 0, 0 }, maxpt = { 320, 320 };
	point pts[] = { -1, -1, 1, 1, 20, 300, 500, 400 };
	rect screen = makerect(addpoint(maxpt, makepoint(-10, -10)),
		addpoint(origin, makepoint(10, 10)));

	for (i = 0; i < sizeof pts/sizeof pts[0]; i++) {
/**
		printf("(%d,%d) is ", pts[i].x,
			(x = makepoint(pts[i].x, pts[i].y)).y);
		if (ptinrect(x, screen) == 0)
			printf("not ");
		printf("within [%d,%d; %d,%d]\n", screen.pt1.x, screen.pt1.y,
			screen.pt2.x, screen.pt2.y);
**/
	        putchar('(');
		putd(pts[i].x);
		putchar(',');
		putd((x = makepoint(pts[i].x, pts[i].y)).y);
		puts(") is ");
		if (ptinrect(x, screen) == 0)
			puts("not ");
		puts("within [");
		putd(screen.pt1.x);
		putchar(',');
		putd(screen.pt1.y);
		putchar(';');
		putchar(' ');
		putd(screen.pt2.x);
		putchar(',');
		putd(screen.pt2.y);
		puts("]\n");
	}
	odd(y);
	exit(0);
}