摘要：All of us love treasures, right? That's why young Vasya is heading for a Treasure Island. Treasure Island may be represented as a rectangular table n× 阅读全文

摘要：Many years ago , in Teddy’s hometown there was a man who was called “Bone Collector”. This man like to collect varies of bones , such as dog’s , cow’s 阅读全文

摘要：题目链接：https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=1059 题目大意：有四堆糖果，称矩阵排列，一共有n行，只能在每一堆的最上方取糖果，病放入篮子中， 阅读全文

摘要：LL最近沉迷于AC不能自拔，每天寝室、机房两点一线。由于长时间坐在电脑边，缺乏运动。他决定充分利用每次从寝室到机房的时间，在校园里散散步。整个HDU校园呈方形布局，可划分为n*n个小方格，代表各个区域。例如LL居住的18号宿舍位于校园的西北角，即方格(1,1)代表的地方，而机房所在的第三实验楼处于东 阅读全文

摘要：Given three strings, you are to determine whether the third string can be formed by combining the characters in the first two strings. The first two s 阅读全文

摘要：Given a tree (a connected graph with no cycles), you have to find the farthest nodes in the tree. The edges of the tree are weighted and undirected. T 阅读全文

摘要：Building and maintaining roads among communities in the far North is an expensive business. With this in mind, the roads are build such that there is 阅读全文

摘要：After hearing about the epidemic of obesity in the USA, Farmer John wants his cows to get more exercise, so he has committed to create a bovine marath 阅读全文

摘要：The northern part of the Pyramid contains a very large and complicated labyrinth. The labyrinth is divided into square blocks, each of them either fil 阅读全文

摘要：Now give you an string which only contains 0, 1 ,2 ,3 ,4 ,5 ,6 ,7 ,8 ,9.You are asked to add the sign ‘+’ or ’-’ between the characters. Just like giv 阅读全文

摘要：小明做了一个很久很久的梦，醒来后他竟发现自己和朋友在一个摇摇欲坠的大棋盘上，他们必须得想尽一切办法逃离这里。经过长时间的打探，小明发现，自己所在的棋盘格子上有个机关，上面写着“你只有一次机会，出发后t秒大门会为你敞开”，而他自己所在的棋盘是大小为 N*M 的长方形，他可以向上下左右四个方向移动（不可 阅读全文

摘要：Fox Ciel is playing a mobile puzzle game called "Two Dots". The basic levels are played on a board of size n × m cells, like this: Each cell contains 阅读全文

摘要：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 c 阅读全文

摘要：在一个给定形状的棋盘（形状可能是不规则的）上面摆放棋子，棋子没有区别。要求摆放时任意的两个棋子不能放在棋盘中的同一行或者同一列，请编程求解对于给定形状和大小的棋盘，摆放k个棋子的所有可行的摆放方案C。 Input 输入含有多组测试数据。 每组数据的第一行是两个正整数，n k，用一个空格隔开，表示了将 阅读全文

摘要：在N*N的方格棋盘放置了N个皇后，使得它们不相互攻击（即任意2个皇后不允许处在同一排，同一列，也不允许处在与棋盘边框成45角的斜线上。 你的任务是，对于给定的N，求出有多少种合法的放置方法。 Input共有若干行，每行一个正整数N≤10，表示棋盘和皇后的数量；如果N=0，表示结束。Output共有若 阅读全文

摘要：The GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvComp works with one large rectangular region of 阅读全文