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最大团问题(Maximum Clique Problem, MCP)
概述: 最大团问题(Maximum Clique Problem, MCP)是图论中一个经典的组合优化问题,也是一类NP完全问题。最大团问题又称为最大独立集问题(Maximum Independent Set Problem)。目前,求解MCP问题的算法主要分为两类:确定性算法和启发式算法。确定性....
分类:其他好文   时间:2014-05-26 23:39:27    阅读次数:421
阶段总结 2014-05-22
1:float保存2位小数: f1.ToString("F2")2:datatable列求和:dt.Compute("sum([企业数量])", "true")同时:如果字段为中文,取值用[中文字段] 方式。3:NPOI 导出EXCEL(需要手动导入NPOI文件)单Sheet: 1 //单Shee....
分类:其他好文   时间:2014-05-26 15:38:04    阅读次数:210
LeetCode:3Sum
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of ...
分类:其他好文   时间:2014-05-26 14:02:27    阅读次数:263
【LeetCode】Combination Sum II
Given a collection of candidate numbers (C) and a target number (T), find all unique combinations inCwhere the candidate numbers sums toT.Each number ...
分类:其他好文   时间:2014-05-26 13:59:59    阅读次数:237
【LeetCode】4Sum
Given an arraySofnintegers, are there elementsa,b,c, anddinSsuch thata+b+c+d= target? Find all unique quadruplets in the array which gives the sum of ...
分类:其他好文   时间:2014-05-26 13:56:05    阅读次数:269
Leetcode: Path Sum II
这是一道很常见的题,看题的时候看漏了root to leaf的leaf,以为只要从root开始就可以了,太不仔细了,sigh~ 其实类似的题目在Career Cup的4.9,那个题是任意路径,不必从root到leaf,要求更高。一直以来我都有这样的疑问,迭代的变量(如下例中的path、total)如...
分类:其他好文   时间:2014-05-26 12:09:21    阅读次数:329
关于高等代数的计算题I
二次型$\bf计算1:$求实二次型$f(x_1,\cdots,x_n)=\sum\limits_{i=1}^n(x_i-\sum\limits_{j=1}^n\dfrac{x_j}{n})^2$的矩阵及正负惯性指数参考答案$\bf计算2:$
分类:其他好文   时间:2014-05-26 10:25:45    阅读次数:172
hdu 2576 Another Sum Problem
数学推导题,f(n)=n*(n+1)*(n+2)/6 推导思路如下: #include"cstdio" #include"cstring" #include"cmath" #include"cstdlib" #include"iostream" #include"algorithm" #include"queue" using namespace std; int main()...
分类:其他好文   时间:2014-05-23 02:13:15    阅读次数:269
001. 3和5的倍数
Problem 1: Multiples of 3 and 5 If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Find the sum of all the multip...
分类:其他好文   时间:2014-05-23 01:43:01    阅读次数:253
LeetCode: Jump Game II [044]
【题目】 Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maximum jump length at that position. Your goal is to reach the last index in the minimum number of ju...
分类:其他好文   时间:2014-05-22 17:02:20    阅读次数:244
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