ACM,再见！

http://lightoj.com/volume_showproblem.php?problem=1033By definition palindrome is a string which is not changed when reversed. "MADAM" is a nice example of palindrome. It is an easy job to test wh

http://codeforces.com/problemset/problem/149/DD. Coloring Bracketstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard

http://acm.hdu.edu.cn/showproblem.php?pid=4745Problem DescriptionLong long ago, there lived two rabbits Tom and Jerry in the forest. On a sunny afternoon, they planned to play a game with so

http://poj.org/problem?id=1179DescriptionPolygon is a game for one player that starts on a polygon with N vertices, like the one in Figure 1, where N=4. Each vertex is labelled with an integer

http://acm.hdu.edu.cn/showproblem.php?pid=4283Problem Description　　The TV shows such as You Are the One has been very popular. In order to meet the need of boys who are still single, TJU

http://acm.hdu.edu.cn/showproblem.php?pid=4632Problem DescriptionIn mathematics, a subsequence is a sequence that can be derived from another sequence by deleting some elements without chang

http://poj.org/problem?id=2955DescriptionWe give the following inductive definition of a “regular brackets” sequence:the empty sequence is a regular brackets sequence,if s is a regular b

http://acm.hdu.edu.cn/showproblem.php?pid=4293Problem Description　　After the regional contest, all the ACMers are walking alone a very long avenue to the dining hall in groups. Groups can va

http://poj.org/problem?id=1651DescriptionThe multiplication puzzle is played with a row of cards, each containing a single positive integer. During the move player takes one card out of the ro

http://lightoj.com/volume_showproblem.php?problem=1031You are playing a two player game. Initially there are n integer numbers in an array and player A and B get chance to take them alternatively.

http://poj.org/problem?id=1141DescriptionLet us define a regular brackets sequence in the following way: 1. Empty sequence is a regular sequence. 2. If S is a regular sequence, then (S)

题目链接：http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3537题目大意：给定n个点的坐标，先问这些点是否能组成一个凸包，如果是凸包，问用不相交的线来切这个凸包使得凸包只由三角形组成，根据costi, j = |xi + xj| * |yi + yj| % p算切线的费用，问最少的切割费用。

http://lightoj.com/volume_showproblem.php?problem=1422

http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3469When we are focusing on solving problems, we usually prefer to stay in front of computers rather than go out for lunch. At this tim

http://acm.sdut.edu.cn/sdutoj/problem.php?action=showproblem&problemid=1309题目描述一位先知告诉dynamic，在遥远的地方，有一处不老的泉水，在那里，他可以找到他人生的意义。按照先知的指引，dynamic出发了。翻越雪山，穿过丛林，渡过汪洋，终于来到了沙漠的最深处。按照先知的说法，泉水就在这个地方。然而

http://poj.org/problem?id=1738DescriptionThere is an old stone game.At the beginning of the game the player picks n(1At each step of the game,the player can merge two adjoining piles to a ne

http://acm.hdu.edu.cn/showproblem.php?pid=5396Problem DescriptionTeacher Mai has n numbers a1,a2,⋯,anand n−1 operators("+", "-" or "*")op1,op2,⋯,opn−1, which are arranged in the form a1