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这样竟然都能过,难道C和C++的数组是不一样的??

Posted by zuo_bj2004 at 2006-08-12 08:57:50 on Problem 1132
//ch[]的大小开为1都能过,以前还从来不知道这么回事。sizeof(ch) == sizeof(ch[0]) = 1
#include <stdio.h>

int x, y;
char ch[1], map[33][33];
inline void work()
{
	int i, j, k;
	for(i=0;i<32;i++){
		for(j=0;j<32;j++){
			map[i][j] = '.';
		}
	}
	if(ch[0]=='E'||ch[0]=='S'){
		y--;
	}
	if(ch[0]=='W'||ch[0]=='S'){
		x--;
	}
	map[y][x] = 'X';
	for(k=1; ch[k]!='.'; k++){
		if(ch[k]=='E'){
			x++;
			if(ch[k-1]=='N'){
				x--;
			}else if(ch[k-1]=='S'){
				y--;
			}
		}else if(ch[k]=='N'){
			y++;
			if(ch[k-1]=='W'){
				y--;
			}else if(ch[k-1]=='E'){
				x++;
			}
		}else if(ch[k]=='W'){
			x--;
			if(ch[k-1]=='N'){
				y++;
			}else if(ch[k-1]=='S'){
				x++;
			}
		}else if(ch[k]=='S'){
			y--;
			if(ch[k-1]=='E'){
				y++;
			}else if(ch[k-1]=='W'){
				x--;
			}
		}
		map[y][x] = 'X';
	}
}

inline void outres()
{
	int i;
	for(i=31;i>=0;i--){
		printf("%s\n",map[i]);
	}
	printf("\n");
}

int main()
{
	int testcase,i;
	scanf("%d", &testcase);
	for(i=1;i<=testcase;i++){
		scanf("%d%d%s", &x, &y, ch);
		work();
		printf("Bitmap #%d\n",i);
		outres();
	}
	return 0;
}

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