C. Epidemic in Monstropolis time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output There was an epidemic in Monstropolis and all monsters became sick. To recover, all monsters lined up in queue fo…

题目链接: http://codeforces.com/problemset/problem/77/C C. Beavermuncher-0xFF time limit per test:3 secondsmemory limit per test:256 megabytes 问题描述 "Eat a beaver, save a tree!" - That will be the motto of ecologists' urgent meeting in Beaverley Hill…

Jumping Cows Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 7329 Accepted: 4404 Description Farmer John's cows would like to jump over the moon, just like the cows in their favorite nursery rhyme. Unfortunately, cows can not jump. The loc…

A.GPA(HDU4802): 给你一些字符串对应的权重,求加权平均,如果是N,P不计入统计 GPA Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1193    Accepted Submission(s): 743 Problem Description In college, a student may take several…

1749: Soldiers ' Training Time Limit: 1 Sec  Memory Limit: 512 MBSubmit: 37  Solved: 18[Submit][Status][Web Board] Description In a strategic computer game "Settlers II" one has to build defense structures to expand and protect the territory. Le…

题目描述: time limit per test 2 seconds memory limit per test 512 megabytes input standard input output standard output Dima worked all day and wrote down on a long paper strip his favorite number n consisting of l digits. Unfortunately, the strip turned…

--> 贪心算法 1)题解 •        分别用V0.V1和V>=2表示度为0.1以及至少为2的顶点集合 •        对于每个顶点,维护三个属性: •        degree 邻居的个数 •        degree2 邻居中度为2的顶点数 •        id     编号 Pseudo-code •        initialize V0, V1, V>=2 and (degree, degree2, id) of each node •        while…

1692: [Usaco2007 Dec]队列变换 Time Limit: 5 Sec  Memory Limit: 64 MBSubmit: 1383  Solved: 582[Submit][Status][Discuss] Description FJ打算带他的N(1 <= N <= 30,000)头奶牛去参加一年一度的“全美农场主大奖赛”.在这场比赛中,每个参赛者都必须让他的奶牛排成一列,然后领她们从裁判席前依次走过. 今年,竞赛委员会在接受队伍报名时,采用了一种新的登记规则:他们把所…

分组集(Grouping Sets)是多个分组的并集,用于在一个查询中,按照不同的分组列对集合进行聚合运算,等价于对单个分组使用“union all”,计算多个结果集的并集.使用分组集的聚合查询,返回的select 子句相同,由于select子句只能引用分组列,因此,在单个分组中缺失的分组列,TSQL返回NULL值. TSQL使用 group by 子句分组,有4种不同的语法: group by a,b group by rollup(a,b) group by cube(a,b) group…

Wooden Sticks Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 15564    Accepted Submission(s): 6405 Problem Description There is a pile of n wooden sticks. The length and weight of each stick a…