1522.cpp

这是哈尔滨工业大学acmOJ的源代码

/*  This Code is Submitted by wywcgs for Problem 1522 on 2005-12-27 at 15:06:07 */ 
#include <cstdio>

const int MAX = 256;

class Point {
public:
	int x, y;
	void operator +=(const Point&);
};
void Point::operator += (const Point& p) {
	x += p.x, y += p.y;
}

const Point dir[4] = { { 10, 0 }, { 0, -10 }, { -10, 0 }, { 0, 10 } };
const Point begin = { 300, 420 };

int main()
{
	Point cur;
	char com[MAX];
	int i, d;
	
	while(gets(com) != NULL) {
		cur = begin, d = 0;
		printf("%d %d moveto\n", cur.x, cur.y);
		cur += dir[d];
		printf("%d %d lineto\n", cur.x, cur.y);
		for(i = 0; com[i] != 0; i++) {
			switch(com[i]) {
			case 'A': d = (d + 1) % 4; break;
			default: d = (d + 3) % 4; break;
			}
			cur += dir[d];
			printf("%d %d lineto\n", cur.x, cur.y);
		}
		printf("stroke\nshowpage\n");
	}
	
	return 0;
}