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POJ-2318 TOYS 【向量叉积+二分】
Calculate the number of toys that land in each bin of a partitioned toy box. Mom and dad have a problem - their child John never puts his toys away when he is finished playing with them. They gave J原创 2017-11-30 20:40:14 · 409 阅读 · 0 评论 -
CodeForces - 908C New Year and Curling
C. New Year and Curling time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Carol is currently curling. She原创 2018-01-02 19:48:31 · 375 阅读 · 0 评论 -
Educational Codeforces Round 41 (Rated for Div. 2)D. Pair Of Lines
D. Pair Of Linestime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given n points on Cartesian plane. Every point is a lattice point (i. e. b...原创 2018-04-10 20:10:09 · 142 阅读 · 0 评论 -
湖北省程序设计竞赛 A. Srdce and Triangle
链接:https://www.nowcoder.com/acm/contest/104/A来源:牛客网题解:画辅助线 构造一个等边三角形,然后就可以证出图中 三角形1 和三角形 2是全等的(边角边,初中数学我竟然没想到)显然橙色三角形就是我们要求的三角形了,所以 可以求出一个角度为 减60°,其他两个角同理;附上ac代码:#include<stdio.h> #include<...转载 2018-04-24 11:17:06 · 379 阅读 · 0 评论 -
HDU - 5858 Hard problem 【两圆相交的面积】
Hard problemTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 906 Accepted Submission(s): 554Problem Descriptioncjj is fun with math problem. O...原创 2018-05-04 11:19:57 · 168 阅读 · 0 评论 -
ZOJ - 4032 Magic Points 【几何构造】
Magic PointsTime Limit: 1 Second Memory Limit: 65536 KB Special JudgeGiven an integer , we say a point on a 2D plane is a magic point, if and only if both and are integers, and exactly on...原创 2018-05-14 14:47:20 · 1327 阅读 · 2 评论