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如何在.NET中实现一致性环Hash算法

2017-02-05 16
如何在.NET中实现一致性环Hash算法2014-04-10一致性环Hash算法有一个大用处就是解决Memcache服务器down机问题的。目的是增加或者移除 Memcache服务器后，最大限度的减少所受影响。理论方面的就不介绍了，网上有太多资料了，请大家自己搜索搜索。在此写了一个ConsistencyRing类来实现算法。测试类如下：public static void Test（）{{ConsistencyRing cr = new Consisten...

算法题之UVA 10029 - Edit Step Ladders（记忆化搜索）

2017-02-05 14
算法题之UVA 10029 - Edit Step Ladders（记忆化搜索）2014-04-10问题B.糖果的存在的问题小鲍勃是玩游戏。他想赢得一些糖果 - 尽可能多。有4根桩，每根桩包含N糖果。鲍勃是一篮子可容纳最多5糖果。每次，他把糖果放进篮筐顶部的一堆 ，如果是两个相同颜色的糖果，他可以把他们两个外线篮子，并把它们纳入自己的口袋。当篮子里装满 的，没有两个相同颜色的糖果，游戏结束。如果游戏是完美的发挥，本场比赛将结束没有留在成堆的糖 果。例如，鲍...

UVA 10029 Edit Step Ladders（dp）

2017-02-05 15
UVA 10029 Edit Step Ladders（dp）2014-04-10 csdn accelerator_Problem C: Edit Step LaddersAn edit step is a transformation from one word x to another word y such that x and y are words in the dictionary, and x can be transformed to y...

算法题之UVA 763 - Fibinary Numbers（高精度斐波那契）

2017-02-05 17
算法题之UVA 763 - Fibinary Numbers（高精度斐波那契）2014-04-10Fibinary NumbersThe standard interpretation of the binary number 1010 is 8 + 2 = 10. An alternate way to view the sequence ``1010"" is to use Fibonacci numbers as bases instead of p...

算法题之UVA 11081 Strings（dp）

2017-02-05 15
算法题之UVA 11081 Strings（dp）2014-04-10string by combining two subsequences from the first two strings.After deleting 0 or more characters from a string we can get its subsequence. For example “a”, “b”, “...

算法题：UVA 10280 Old Wine Into New Bottles（dp完全背包）

2017-02-05 15
算法题：UVA 10280 Old Wine Into New Bottles（dp完全背包）2014-04-10 csdn accelerator_Problem C: Old Wine Into New BottlesWine bottles are never completely filled: a small amount of air must be left in the neck to allow for thermal expansion...

算法题：UVA 590 Always on the run（dp）

2017-02-05 18
算法题：UVA 590 Always on the run（dp）2014-04-10 csdn accelerator_Screeching tires. Searching lights. Wailing sirens. Police cars everywhere. Trisha Quickfinger did it again！ Stealing the `Mona Lisa" had been more difficult than planne...

算法题：UVA 10913 Walking on a Grid（记忆化搜索）

2017-02-05 17
算法题：UVA 10913 Walking on a Grid（记忆化搜索）2014-04-10 csdn accelerator_You will be given a square grid of size N × N. The top-left square has a coordinate of （1, 1） and that of bottom-right is （N, N）. Your job is to walk from （1,...

算法题：POJ 1068 Parencodings 栈模拟

2017-02-05 14
算法题：POJ 1068 Parencodings 栈模拟2014-04-12 csdn博客 accelerator_Let S = s1 s2...s2n be a well-formed string of parentheses. S can be encoded in two different ways:q By an integer sequence P = p1 p2...pn where pi is the number of left p...

经典算法：选择排序、插入排序和气泡排序的实现

2017-02-05 16
经典算法：选择排序、插入排序和气泡排序的实现2014-04-12将要排序的对象分作两部分，一个是一排序的，一个是未排序的，从后面未排序部分选择一个最小 值，并放入前面已排序部分的最后一个。例如：排序前：70 80 31 37 10 1 48 60 33 80[1] 80 31 37 10 70 48 60 33 80 选出最小值1[1 10] 31 37 80 70 48 60 33 80 选出最小值10[1 10 31] 37 80 70 48 60 3...

算法题之POJ 1573 Robot Motion 模拟

2017-02-05 16
算法题之POJ 1573 Robot Motion 模拟2014-04-12A robot has been programmed to follow the instructions in its path. Instructions for the next direction the robot is to move are laid down in a grid. The possible instructions areN north （up t...

算法题：UVA 348 Optimal Array Multiplication Sequence（区间dp）

2017-02-05 16
算法题：UVA 348 Optimal Array Multiplication Sequence（区间dp）2014-04-12 csdn博客 accelerator_Optimal Array Multiplication SequenceGiven two arrays A and B, we can determine the array C = A B using the standard definition of matrix multipl...

算法题：UVA 10635 Prince and Princess （dp + LCS）

2017-02-05 18
算法题：UVA 10635 Prince and Princess （dp + LCS）2014-04-12 csdn博客 accelerator_In an n x n chessboard, Prince and Princess plays a game. The squares in the chessboard are numbered 1, 2, 3 ... n*n, as shown below:Prince stands in square...

算法题：HDU 1022 Train Problem I 栈

2017-02-05 18
算法题：HDU 1022 Train Problem I 栈2014-04-12 csdn博客 accelerator_As the new term comes, the Ignatius Train Station is very busy nowadays. A lot of student want to get back to school by train（because the trains in the Ignatius Train Sta...

算法题：UVA 10911 Forming Quiz Teams（dp + 集合最优配对问题）

2017-02-05 19
算法题：UVA 10911 Forming Quiz Teams（dp + 集合最优配对问题）2014-04-12 csdn博客 accelerator_You have been given the job of forming the quiz teams for the next ‘MCA CPCI Quiz Championship’. There are2*N students interested to particip...

算法题：UVA 10534 Wavio Sequence（dp + LIS）

2017-02-05 15
算法题：UVA 10534 Wavio Sequence（dp + LIS）2014-04-12 csdn博客 accelerator_Wavio is a sequence of integers. It has some interesting properties.· Wavio is of odd length i.e. L = 2*n + 1.· The first （n+1） integers of Wavio se...

算法题：UVA 11258 String Partition（dp）

2017-02-05 18
算法题：UVA 11258 String Partition（dp）2014-04-12 csdn博客 accelerator_Problem F - String PartitionJohn was absurdly busy for preparing a programming contest recently. He wanted to create a ridiculously easy problem for the contest. His ...

算法题 - UVA 10069 Distinct Subsequences（dp + 高精度）

2017-02-05 18
算法题 - UVA 10069 Distinct Subsequences（dp + 高精度）2014-04-12A subsequence of a given sequence is just the given sequence with some elements （possibly none） left out. Formally, given a sequence X =x1x2…xm, another sequence Z = ...

算法题：UVA 10051 - Tower of Cubes（dp + DAG最长路径）

2017-02-05 16
算法题：UVA 10051 - Tower of Cubes（dp + DAG最长路径）2014-04-12 csdn博客 accelerator_In this problem you are given N colorful cubes each having a distinct weight. Each face of a cube is colored with one color. Your job is to build a tower us...

Shell排序算法：一种经过改良的插入排序算法

2017-02-05 17
Shell排序算法：一种经过改良的插入排序算法2014-04-12Shell排序算法最初是由D.L Shell于1959年提出，假设要排序的元素有n个，则每个进行插入排序是 并不是所偶的元素同时进行，而是去一段间隔。Shell首先将间隔设定为n/2，然后跳跃的进行插入排序，再来将间隔设定为n/4，跳跃进行排序动作 ，再来设定时间间隔为n/8、n/16，知道间隔为1之后的最后一次排序终止，由于上一次的排序动作都会 将固定间隔内的元素排序好，所以当间隔为1之后...
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