深搜,从一点向各处搜找到全部能走的地方. Problem Description There is a rectangular room, covered with square tiles. Each tile is colored either red or black. A man is standing on a black tile. From a tile, he can move to one of four adjacent tiles. But he can't move on…
Description There is a rectangular room, covered with square tiles. Each tile is colored either red or black. A man is standing on a black tile. From a tile, he can move to one of four adjacent tiles. But he can't move on red tiles, he can move only…
[题目链接:HDOJ-2952] Counting Sheep Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2476 Accepted Submission(s): 1621 Problem Description A while ago I had trouble sleeping. I used to lie awake,…
Lake Counting Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 18201 Accepted: 9192 Description Due to recent rains, water has pooled in various places in Farmer John's field, which is represented by a rectangle of N x M (1 <= N <= 100…
Stamps The government of Nova Mareterrania requires that various legal documents have stamps attached to them so that the government can derive revenue from them. In terms of recent legislation, each class of document is limited in the number of st…
A Knight's Journey Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 31702 Accepted: 10813 Description Background The knight is getting bored of seeing the same black and white squares again and again and has decided to make a journey …
Problem Description The GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvComp works with one large rectangular region of land at a time, and creates a grid that divides the land into numerous square pl…
