摘要： Time Limit:1000MSMemory Limit:10000KTotal Submissions:1535Accepted:529DescriptionAnalyzing the run-time complexity of algorithms is an important tool for designing efficient programs that solve a problem. An algorithm that runs in linear time is usually much faster than an algorithm that takes quadr 阅读全文

摘要： http://poj.org/problem?id=3393好大的一道模拟题，直接当阅读理解看了。下面是大神写的题意，解释的好详细。定义：Goog month ： 该月第一个工作日为星期一的月份Luckly month： 该月最后一个工作日为星期五的月份问： 给定一个Gregorian Calendar格里高公历的时间闭区间（就是包括端点的年月了）【开始年、月】~【结束年、月】 在这个时间区间内，有多少个Goog month，有多少个Luckly month文章要点：Gregorian Calendar格里高公历 就是现在广泛使用公历（西历），下面简称GCGC的起始日期为 1年1月1号，该日为 阅读全文

摘要： Time Limit:1000MSMemory Limit:10000KTotal Submissions:27110Accepted:9045DescriptionOnce upon a time there was a greedy King who ordered his chief Architect to build a wall around the King's castle. The King was so greedy, that he would not listen to his Architect's proposals to build a beaut 阅读全文

摘要： Time Limit:3000MSMemory Limit:65536KTotal Submissions:25256Accepted:7756DescriptionBessie, Farmer John's prize cow, has just won first place in a bovine beauty contest, earning the title 'Miss Cow World'. As a result, Bessie will make a tour of N (2 2 #include 3 #include 4 #include 5 usi 阅读全文

摘要： Time Limit:1000MSMemory Limit:10000KTotal Submissions:4628Accepted:1434DescriptionThe DIY Furniture company specializes in assemble-it-yourself furniture kits. Typically, the pieces of wood are attached to one another using a wooden peg that fits into pre-cut holes in each piece to be attached. The 阅读全文

摘要： ime Limit:1000MSMemory Limit:65536KTotal Submissions:8930Accepted:3235Special JudgeDescriptionMy birthday is coming up and traditionally I'm serving pie. Not just one pie, no, I have a number N of them, of various tastes and of various sizes. F of my friends are coming to my party and each of th 阅读全文

摘要： Time Limit:1000MSMemory Limit:30000KTotal Submissions:10287Accepted:2615DescriptionWhen a thin rod of length L is heated n degrees, it expands to a new length L'=(1+n*C)*L, where C is the coefficient of heat expansion.When a thin rod is mounted on two solid walls and then heated, it expands and 阅读全文

摘要： Time Limit:1000MSMemory Limit:10000KTotal Submissions:1642Accepted:1051DescriptionA fisherman named Etadokah awoke in a very small island. He could see calm, beautiful and blue sea around the island. The previous night he had encountered a terrible storm and had reached this uninhabited island. Some 阅读全文

摘要： Time Limit:1000MSMemory Limit:30000KTotal Submissions:3820Accepted:1950DescriptionYou are a member of the space station engineering team, and are assigned a task in the construction process of the station. You are expected to write a computer program to complete the task.The space station is made up 阅读全文

摘要： 转载了一篇关于全排列的哈希函数，Poj1077就是应用了全排列的哈希；我们经常使用的数的进制为“常数进制”，即始终逢p进1。例如，p进制数K可表示为K = a0*p^0 + a1*p^1 + a2*p^2 + ... + an*p^n （其中0 pi，那么，如果在排列Q中qi之前的元素x与qi构成逆序对，即有x > qi，则在排列P中pi之前也有相同元素x > pi（因为x > qi且qi > pi），即在排列P中pi之前的元素x也与pi构成逆序对，所以pi的逆序数大于等于qi的逆序数。又qi与pi在排列P中构成pi的逆序对，所以pi的逆序数大于qi的逆序数。（2）同理 阅读全文