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POJ 1673
可以证明O是三角形ABC的垂心。作图辅助线,一个很重要的技巧是延长中线等中线。可以证明三角形DNA全等于ABC。然后通过角度变换容易证明AQ垂直于BC。#include #include #include using namespace std;struct point{ double x,y;}A...
分类:其他好文   时间:2014-07-29 17:15:32    阅读次数:264
简易计算器页面
Calculator.jsp: "> 制作简易计算器 --> 操作数一: ...
分类:其他好文   时间:2014-07-29 16:45:02    阅读次数:192
POJ 1102 LC-Display 模拟
Description A friend of you has just bought a new computer. Until now, the most powerful computer he ever used has been a pocket calculator. Now, looking at his new computer, he is a bit disappointed...
分类:其他好文   时间:2014-07-29 15:07:09    阅读次数:335
hdu1179Ollivanders: Makers of Fine Wands since 382 BC. (二分最大匹配)
Problem Description In Diagon Alley ,there is only one Wand-seller,peeling gold letters over the door read Ollivanders: Makers of Fine Wands since 382 BC.A single wand lay on a faded purple cushion i...
分类:其他好文   时间:2014-07-29 14:59:59    阅读次数:242
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