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搜索关键字:maximum sum subarray    ( 25087个结果
Leetcode:Max Points on a Line
Given n points on a 2D plane, find the maximum number of points that lie on the same straight line. 解题想法: 其实判断一个直线上最好的方法是判断斜率。如果在同一直线上,那么直线上一点与其他点的斜率相...
分类:其他好文   时间:2014-05-07 21:13:02    阅读次数:323
Sum square difference
简单:e sum of the squares of the first ten natural numbers is,12 + 22 + ... + 102 = 385The square of the sum of the first ten natural numbers is,(1 + 2 ...
分类:其他好文   时间:2014-05-07 20:23:43    阅读次数:338
Fatal error: Maximum execution time of 30 seconds exceeded in
Fatal error: Maximum execution time of 30 seconds exceeded inC:\Program Files\Apache Software Foundation\Apache2.2\htdocs\code\curl\work\work3.phpon l...
分类:其他好文   时间:2014-05-07 16:53:31    阅读次数:338
LeetCode:Maximum Subarray
题目链接 Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array [?2,1,?3,4,...
分类:其他好文   时间:2014-05-07 16:42:42    阅读次数:287
ProjectEuler_P13
Problem:Work out the first ten digits of the sum of the following one-hundred 50-digit numbers.3710728753390210279879799822083759024651013574025046376...
分类:其他好文   时间:2014-05-07 13:34:38    阅读次数:299
搜索(DFS)
Sum It UpTime Limit:1000MSMemory Limit:10000KTotal Submissions:5684Accepted:2894DescriptionGiven a specified total t and a list of n integers, find al...
分类:其他好文   时间:2014-05-07 10:45:02    阅读次数:388
Leetcode | Triangle
Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.For example, given the fol...
分类:其他好文   时间:2014-05-07 02:55:24    阅读次数:377
IPMSM的FOC驱动最大转矩电流比推导计算方法
IPMSM的电磁转矩方程为:IPMSM的d轴电感Ld小于q轴电感Lq,所以负的d轴电流可以增加电机磁阻转矩分量。最大转矩电流比(maximum torque per ampere, MTPA)控制方法的优点就是在基速以下的恒转矩区根据给定的转矩控制使得定子电流的幅值最小。上述问题就可以等效为, 以上...
分类:其他好文   时间:2014-05-07 02:22:57    阅读次数:420
SVM与C++源码实现
1. 推导出函数间隔最小 2. 约束优化函数变形至如下形式 /*min 1/2*||w||^2s.t. (w[i]*x[i] + b[i] - y[i]) >= 0;*/ 3. 对偶函数 /*min(para alpha) 1/2*sum(i)sum(j)(alpha[i]*alpha[j]*y[i...
分类:编程语言   时间:2014-05-07 00:48:13    阅读次数:498
常用SQL命令
1、查看所有表的物理大小1 select segment_name, bytes from user_segments order by bytes desc2、查看表空間的名稱及大小1 select t.tablespace_name, round(sum(bytes/(1024*1024)),....
分类:数据库   时间:2014-05-07 00:30:02    阅读次数:1232
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