算法本子

题目： 食物链 Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 57770   Accepted: 16890 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－

题目： Hotel Time Limit: 3000MS   Memory Limit: 65536K Total Submissions: 15276   Accepted: 6609 Description The cows are journeying north to Thunder Bay in Canada to g

题目： City Horizon Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 17855   Accepted: 4896 Description Farmer John has taken his cows on a trip to the city

题目： Flowers Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 2866    Accepted Submission(s): 1404 Problem Description As is kno

题目： A Simple Problem with Integers Time Limit: 5000MS   Memory Limit: 131072K Total Submissions: 88582   Accepted: 27535 Case Time Limit: 2000MS Description You

题目： Mex Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others) Total Submission(s): 2517    Accepted Submission(s): 816 Problem Description Mex is a func

题目： 敌兵布阵 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 70464    Accepted Submission(s): 29532 Problem Description C国的死对头A国这段

题目： Just a Hook Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 25872    Accepted Submission(s): 12918 Problem Description In

题目： D. Babaei and Birthday Cake time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output As you know, every bir

2016多校联合第二场 HDU5735 B. Born Slippy Problem Description Professor Zhang has a rooted tree, whose vertices are conveniently labeled by 1,2,...,n. And the i-th vertex is assigned with weight wi. For each s∈{1,2,...,n}, Professor Zhang wants find a sequence o

题目： 最短路径问题 Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 19767    Accepted Submission(s): 5880 Problem Description 给你n个点，m条无

题目： 畅通工程续 Time Limit: 3000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 40043    Accepted Submission(s): 14817 Problem Description 某省自从实行了很多

题目： Red and Black Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 15201    Accepted Submission(s): 9409 Problem Description Th

题目： C. Graph and String time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output One day student Vasya was sitt

Once Again PROBLEM You are given an array of positive integers a1, a2, ..., an × T of length n × T. We know that for any i > n it is true that ai = ai - n. Find the length of the longest n

题目： Reward Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 6614    Accepted Submission(s): 2037 Problem Description Dandelion'

题目： 还是畅通工程 Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 35937    Accepted Submission(s): 16210 Problem Description 某省调查乡村交通

题目： Choose the best route Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 11846    Accepted Submission(s): 3846 Problem Descripti

题目： Connect the Cities Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 15440    Accepted Submission(s): 4085 Problem Description

题目： Mobile phones Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 17385   Accepted: 8028 Description Suppose that the fourth generation mobile phone bas

题目： A strange lift Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 17969    Accepted Submission(s): 6707 Problem Description T

题目： Knight Moves Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 9206    Accepted Submission(s): 5422 Problem Description A fr

A ring is compose of n circles as shown in diagram. Put natural number 1, 2, ..., n into each circle separately, and the sum of numbers in two adjacent circles should be a prime. Note: the number of first circle should always be 1.

题目： D. Alyona and a tree time limit per test  2 seconds memory limit per test  256 megabytes input  standard input output  standard output Alyona has atree with n vertices. The root of the tree