VLATTICE - Visible Lattice Points
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Consider a N*N*N lattice. One corner is at (0,0,0) and the opposite one is at (N,N,N). How many lattice points are visible from corner at (0,0...
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其他好文 时间:
2015-08-17 23:46:45
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111
Intersecting LinesTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 12421Accepted: 5548DescriptionWe all know that a pair of distinct points on...
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其他好文 时间:
2015-08-17 11:56:07
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235
原题链接:http://poj.org/problem?id=3090
题目大意:行数与列数互质,星星就可见。矩阵对称,只需检查一半。
第一次未做特殊处理,复杂度是1000*1000*1000,TLE。
#include
#include
int GCD(int a,int b)
{
if(b == 0)
return a;
else
return GCD(b,a%b);
}...
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其他好文 时间:
2015-08-16 23:15:06
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117
Max Points on a LineGivennpoints on a 2D plane, find the maximum number of points that lie on the same straight line.求有多少点在一直线上。粗暴地用二重循环遍历。每一轮都构造一个哈希表...
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编程语言 时间:
2015-08-16 00:39:26
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145
Description
Several currency exchange points are working in our city. Let us suppose that each point specializes in two particular currencies and performs exchange operations only with these currenci...
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其他好文 时间:
2015-08-15 16:38:55
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171
客户联系方式,可以使用接口表ra_contact_phones_int_all
导入结束之后,可以在表HZ_CONTACT_POINTS,通过owner_table_id(value for party_site_id)
根据对ra_contact_phones_int_all表字段ORIG_SYSTEM_ADDRESS_REF的解读:
Unique address identifier f...
问题描述Givennpoints on a 2D plane, find the maximum number of points that lie on the same straight line.解决思路1.定义Line类{slope; intercept; isVertical; isHor...
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其他好文 时间:
2015-08-11 22:53:24
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163
POJ3739 Special Squares描述:There are some points and lines parellel to x-axis or y-axis on the plane. If arbitrary chosen two lines parallel to x-axis ...
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其他好文 时间:
2015-08-11 06:55:08
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156
Given n points
on a 2D plane, find the maximum number of points that lie on the same straight line.
分析:
任意一条直线都可以表述为
y = ax + b
假设,有两个点(x1,y1), (x2,y2),如果他们都在这条直线上则有
y1 = kx1 +b...
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其他好文 时间:
2015-08-09 20:47:26
阅读次数:
98
在MatLab中,我们有时要给画出的点按一定顺序标上序号,下面这个简单的例子实现这个功能:x=rand(1,10);y=rand(1,10);plot(x,y,'r*');text(x+0.02,y,num2cell(1:10));
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其他好文 时间:
2015-08-09 08:23:13
阅读次数:
255