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转载 Block Breaker HDU - 6699(深搜,水,写下涨涨记性)
Problem Description Given a rectangle frame of size n×m. Initially, the frame is strewn with n×m square blocks of size 1×1. Due to the friction with the frame and each other, the blocks are stab...
2019-08-21 21:56:00
302
转载 A + B for you again HDU - 1867(最大前缀&最大后缀的公共子缀&kmp删除法)
Problem Description Generally speaking, there are a lot of problems about strings processing. Now you encounter another such problem. If you get two strings, such as“asdf”and“sdfg”, the res...
2019-08-19 10:32:00
184
转载 Is It A Tree? POJ - 1308(并查集判树)
Problem Description A tree is a well-known data structure that is either empty (null, void, nothing) or is a set of one or more nodes connected by directed edges between nodes satisfying the fol...
2019-08-19 09:23:00
153
转载 剪花布条 HDU - 2087(kmp,求不重叠匹配个数)
Problem Description 一块花布条,里面有些图案,另有一块直接可用的小饰条,里面也有一些图案。对于给定的花布条和小饰条,计算一下能从花布条中尽可能剪出几块小饰条来呢? Input 输入中含有一些数据,分别是成对出现的花布条和小饰条,其布条都是用可见ASCII字符表示的,可见的ASCII字符有多少个,布条的花纹也有多少种花样。花纹条和小饰条不会...
2019-08-17 23:11:00
178
转载 Colossal Fibonacci Numbers! UVA - 11582(快速幂,求解)
Problem Description The i’th Fibonacci number f(i) is recursively defined in the following way: •f(0) = 0 and f(1) = 1 •f(i + 2) = f(i + 1) + f(i) for every i ≥ 0 Your task is to compute som...
2019-08-16 20:16:00
132
转载 Simple Library Management System HDU - 1497(图书管理系统)
Problem Description After AC all the hardest problems in the world , the ACboy 8006 now has nothing to do . One day he goes to an old library to find a part-time job .It is also a big library w...
2019-08-16 16:33:00
220
转载 Equations HDU - 1496(哈希的应用)
Problem Description Consider equations having the following form:a*x1^2+b*x2^2+c*x3^2+d*x4^2=0a, b, c, d are integers from the interval [-50,50] and any of them cannot be 0.It is consider a s...
2019-08-16 15:42:00
148
转载 Oulipo POJ - 3461(kmp,求重叠匹配个数)
Problem Description The French author Georges Perec (1936–1982) once wrote a book, La disparition, without the letter'e'. He was a member of the Oulipo group. A quote from the book: Tout avai...
2019-08-16 11:31:00
130
转载 最长回文 HDU - 3068(马拉车算法)
Problem Description 给出一个只由小写英文字符a,b,c...y,z组成的字符串S,求S中最长回文串的长度.回文就是正反读都是一样的字符串,如aba, abba等 Input 输入有多组case,不超过120组,每组输入为一行小写英文字符a,b,c...y,z组成的字符串S两组case之间由空行隔开(该空行不用处理)字符串长度len <= 1100...
2019-08-16 10:09:00
208
转载 Wireless Network(并查集)
Problem Description An earthquake takes place in Southeast Asia. The ACM (Asia Cooperated Medical team) have set up a wireless network with the lap computers, but an unexpected aftershock at...
2019-08-15 22:26:00
87
转载 食物链(并查集)
Problem Description 动物王国中有三类动物A,B,C,这三类动物的食物链构成了有趣的环形。A吃B, B吃C,C吃A。现有N个动物,以1-N编号。每个动物都是A,B,C中的一种,但是我们并不知道它到底是哪一种。有人用两种说法对这N个动物所构成的食物链关系进行描述:第一种说法是"1 X Y",表示X和Y是同类。第二种说法是"2 X Y",表示X吃Y。此人对N个动...
2019-08-15 15:31:00
792
转载 约瑟夫环
n个人围成一个圈,从第一个人开始编号(1,2,… ,n),从第一个人开始顺序报号1,2,3。凡报到3者退出圈子。找出最后留在圈子中的人原来的序号。要求用链表实现。 输入格式: 输入在一行中给出一个n,代表n个人围成一个圈(0<n<=100000)。 输出格式: 输出最后留在圈子中的人原来的序号,占一行。 输入样例: 10 输出样例: 4 #inclu...
2019-08-15 14:54:00
139
转载 成绩排序Ⅱ(简单排序)
期中考试结束了,老师已经批改完试卷了,但老师实在太忙了,想要写一个程序将所有学生的成绩信息处理一下,要求按照成绩的高低顺序输出各个学生的信息。 输入格式: 第一行输入一个n,代表有n个学生。接下来有n行,每一行中给出一名学生的学号num,姓名name,成绩score。学生人数0<n<=1000,学号为11位整型,保证学号各不相同,姓名为长度不超过20字符串,成绩为浮点型(...
2019-08-15 14:52:00
470
转载 成绩排序Ⅰ(简单排序)
期中考试结束了,老师已经批改完试卷了,但老师实在太忙了,想要写一个程序将所有学生的成绩信息处理一下,要求按照成绩降序输出各个学生的信息。 输入格式: 第一行输入一个n,代表有n个学生。接下来有n行,每一行中给出一名学生的学号num,姓名name,成绩score。学生人数0<n<=1000,学号11位整型,姓名为字符串,且长度不超过20,成绩为浮点型,保证每个学生的成绩各不...
2019-08-15 11:14:00
353
转载 Number of Containers ZOJ - 3175(数论题)
Problem Description For two integersmandk,kis said to be a container ofmifkis divisible bym. Given 2 positive integersnandm(m<n), the function f(n,m) is defined to be the nu...
2019-08-15 09:51:00
297
转载 Ugly Numbers UVA - 136(优先队列+vector)
Problem Description Ugly numbers are numbers whose only prime factors are 2, 3 or 5. The sequence 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, ...shows the first 11 ugly numbers. By convention, 1 is in...
2019-08-15 09:18:00
134
转载 Mathematically Hard LightOJ-1007(欧拉定理+前缀和)
Description Mathematically some problems look hard. But with the help of the computer, some problems can be easily solvable. In this problem, you will be given two integersaandb. You have to...
2019-08-13 23:52:00
228
转载 GCD and LCM HDU - 4497(质因数分解)
Problem Description Given two positive integers G and L, could you tell me how many solutions of (x, y, z) there are, satisfying that gcd(x, y, z) = G and lcm(x, y, z) = L?Note, gcd(x, y, z...
2019-08-13 23:26:00
257
转载 A/B HDU-1576(简单的数论题)
Problem Description 要求(A/B)%9973,但由于A很大,我们只给出n(n=A%9973)(我们给定的A必能被B整除,且gcd(B,9973) = 1)。 Input 数据的第一行是一个T,表示有T组数据。每组数据有两个数n(0 <= n < 9973)和B(1 <= B <= 10^9)。Output对应每组数据输出(A/B)%99...
2019-08-13 10:34:00
195
转载 Prime Time UVA - 10200(精度处理,素数判定)
Problem Description Euler is a well-known matematician, and, among many other things, he discovered that the formulan^{2} + n + 41n2+n+41produces a prime for0 ≤ n < 400≤n<40. F...
2019-08-13 00:21:00
183
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