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UVALive 4639 && SPOJ SPOINTS && POJ 3805 && AOJ 1298 Separate Points 求两个凸包是否相交 难度:3
https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=2640http://www.spoj.com/problems/SPOINTS/en/htt...
分类:其他好文   时间:2015-03-11 09:14:33    阅读次数:169
POJ 1981 Circle and Points
//对于任意一点已经覆盖了一些点的圆,都可以通过对圆进行偏移,以使其在保证已覆盖的点的基础上,覆盖更多的点 //对这偏移进行到极限,就是刚好使两点在圆上 //其实这题的思路和POJ1106是差不多的,只不过在看到聚会范围在[0,10]的时候想到随机算法去了 //还有一种n^2logn的做法,学习了一下圆上弧被覆盖次数的标记 #include #include #include using name...
分类:其他好文   时间:2015-03-08 14:23:26    阅读次数:227
SGU[130] CIrcle
Description描述On a circle border there are 2k different points A1, A2, ..., A2k, located contiguously. These points connect k chords so that each of po...
分类:其他好文   时间:2015-03-07 11:35:41    阅读次数:110
【POJ2352】【树状数组】Stars
DescriptionAstronomers often examine star maps where stars are represented by points on a plane and each star has Cartesian coordinates. Let the level...
分类:编程语言   时间:2015-03-07 11:22:42    阅读次数:150
Currency Exchange
DescriptionSeveral currency exchange points are working in our city. Let us suppose that each point specializes in two particular currencies and perfo...
分类:其他好文   时间:2015-03-05 20:46:07    阅读次数:218
【leetcode】Max Points on a Line(hard)☆
Givennpoints on a 2D plane, find the maximum number of points that lie on the same straight line.思路:自己脑子当机了,总是想着斜率和截距都要相同。但实际上三个点是一条直线的话只要它们的斜率相同就可以了,...
分类:其他好文   时间:2015-03-05 14:27:52    阅读次数:132
3Sum Closest
Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exact...
分类:其他好文   时间:2015-03-04 17:08:53    阅读次数:138
4Sum
Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array which gives the sum of target. Note: Element...
分类:其他好文   时间:2015-03-04 17:00:29    阅读次数:137
HackerRank(FP) - The Sums of Powers
In Haskell. Two points: 1. pruning 2. Int suffers from overflow. Integer it is.getPowerSum :: Integer -> [Integer] -> Integer -> IntegergetPowerSum _ ...
分类:其他好文   时间:2015-03-03 06:20:33    阅读次数:128
AngularJS 简单使用实例,W3C
在输入框中尝试输入: 姓名: 总价: {{ quantity * cost }} 总价: 姓名: {{ firstName + " " + lastName }} 姓名: 姓为 {{ person.lastName }} 姓为 第三个值为 {{ points[2] }}...
分类:Web程序   时间:2015-03-02 18:54:42    阅读次数:195
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