463. Island Perimeterhttps://leetcode.com/problems/island-perimeter/就是逐一遍历所有的cell,用分离的cell总的的边数减去重叠的边的数目即可.在查找重叠的边的数目的时候有一点小技巧,就是沿着其中两个方向就好,这种题目都有类似的规律,就是可以沿着上三角或者下三角形的方向来做.一刷一次ac,但是还没开始注意codestyle的问题,需要再刷一遍. class Solution { public: int islandPerime
Chess Problem Description Alice and Bob are playing a special chess game on an n × 20 chessboard. There are several chesses on the chessboard. They can move one chess in one turn. If there are no other chesses on the right adjacent block of the mov
题目描述 小新正在玩一个简单的电脑游戏. 游戏中有一条环形马路,马路上有 n 个机器人工厂,两个相邻机器人工厂之间由一小段马路连接.小新以某个机器人工厂为起点,按顺时针顺序依次将这 n 个机器人工厂编号为1~n,因为马路是环形的,所以第 n 个机器人工厂和第 1 个机器人工厂是由一段马路连接在一起的.小新将连接机器人工厂的这 n 段马路也编号为 1~n,并规定第 i 段马路连接第 i 个机器人工厂和第 i+1 个机器人工厂(1≤i≤n-1),第 n 段马路连接第 n 个机器人工厂和第 1个机器人
题目 Source http://acm.hdu.edu.cn/showproblem.php?pid=5724 Description Alice and Bob are playing a special chess game on an n × 20 chessboard. There are several chesses on the chessboard. They can move one chess in one turn. If there are no other chess
Robberies Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 21310 Accepted Submission(s): 7885 Problem Description The aspiring Roy the Robber has seen a lot of American movies, and knows that
Description In order to build a ship to travel to Eindhoven, The Netherlands, various sheet metal parts have to be cut from rectangular pieces of sheet metal. Each part is a convex polygon with at most 8 vertices. Each rectangular piece of sheet meta
Mean Requests time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output In this problem you will have to deal with a real algorithm that is used in the VK social network. As in any other company tha
http://acm.hdu.edu.cn/showproblem.php?pid=5724 Chess Problem Description Alice and Bob are playing a special chess game on an n × 20 chessboard. There are several chesses on the chessboard. They can move one chess in one turn. If there are no other
HDU 5724 Chess(国际象棋) Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Description 题目描述 Alice and Bob are playing a special chess game on an n × 20 chessboard. There are several chesses on the chessboard. They can mo
Learnt from here: http://www.cnblogs.com/lautsie/p/3798165.html Idea is: we union all pure black edges so we get 1+ pure black edge groups. Then we can simply pick only 1 vertex from each pure-black group to form a triangle. Then it will be all combi
题目链接: D. Vanya and Treasure time limit per test 1.5 seconds memory limit per test 256 megabytes input standard input output standard output Vanya is in the palace that can be represented as a grid n × m. Each room contains a single chest, an the room
Chess 题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5724 Description Alice and Bob are playing a special chess game on an n × 20 chessboard. There are several chesses on the chessboard. They can move one chess in one turn. If there are no other che