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2015年12月9日
Gym 100818F Irrational Roots （数学）
摘要： Irrational Roots http://acm.hust.edu.cn/vjudge/contest/view.action?cid=101594#problem/F 【题意】： 判断一个整系数高阶方程的无理根的个数。 【解题思路】： 定理：如果方程f(x)=0的系数都是整数，那么方程有理根 阅读全文
posted @ 2015-12-09 00:39 Sunshine_tcf 阅读(317) 评论(0) 推荐(0) 编辑
Gym 100818I Olympic Parade（位运算）
摘要： Olympic Parade http://acm.hust.edu.cn/vjudge/contest/view.action?cid=101594#problem/I 【题意】： 给出Ｎ个数，找出没有恰好出现Ｋ次的那个数． 【解题思路】： 题目卡了一下内存，不能太暴力．．． 然而还是很暴力，排个 阅读全文
posted @ 2015-12-09 00:37 Sunshine_tcf 阅读(338) 评论(0) 推荐(0) 编辑
2015年11月30日
Codeforces 602B Approximating a Constant Range（想法题）
摘要： B. Approximating a Constant Range When Xellos was doing a practice course in university, he once had to measure the intensity of an effect that slowly 阅读全文
posted @ 2015-11-30 18:37 Sunshine_tcf 阅读(869) 评论(5) 推荐(0) 编辑
Codeforces 599D Spongebob and Squares（数学）
摘要： D. Spongebob and Squares Spongebob is already tired trying to reason his weird actions and calculations, so he simply asked you to find all pairs of n 阅读全文
posted @ 2015-11-30 17:20 Sunshine_tcf 阅读(341) 评论(0) 推荐(0) 编辑
Codeforces 599C Day at the Beach（想法题，排序）
摘要： C. Day at the Beach One day Squidward, Spongebob and Patrick decided to go to the beach. Unfortunately, the weather was bad, so the friends were unabl 阅读全文
posted @ 2015-11-30 17:02 Sunshine_tcf 阅读(281) 评论(0) 推荐(0) 编辑
ZOJ 3903 Ant（数学，推公示+乘法逆元）
摘要： There is an ant named Alice. Alice likes going hiking very much. Today, she wants to climb a cuboid. The length of cuboid's longest edge is n, and the 阅读全文
posted @ 2015-11-30 01:26 Sunshine_tcf 阅读(397) 评论(1) 推荐(0) 编辑
ZOJ 3911 Prime Query（线段树）
摘要： You are given a simple task. Given a sequence A[i] with N numbers. You have to perform Q operations on the given sequence. Here are the operations: A 阅读全文
posted @ 2015-11-30 01:23 Sunshine_tcf 阅读(384) 评论(0) 推荐(0) 编辑
2015年11月12日
UVALive 6910 Cutting Tree（离线逆序并查集）
摘要： 【题目】：（地址：） http://acm.hust.edu.cn/vjudge/contest/view.action?cid=97671#problem/E 【题意】： 给出多棵树和两类操作：操作（C x）删除结点 x 与其父结点的连边；操作（Q a b）询问 a b 是否连通。 【解题思路】： 阅读全文
posted @ 2015-11-12 19:39 Sunshine_tcf 阅读(272) 评论(0) 推荐(0) 编辑
2015年11月5日
HDU 5531 Rebuild (2015长春现场赛，计算几何+三分法)
摘要： Rebuild Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 521 Accepted Submission(s): 125 Problem 阅读全文
posted @ 2015-11-05 20:27 Sunshine_tcf 阅读(276) 评论(0) 推荐(0) 编辑
2015年11月1日
HDU 4791 Alice's Print Service (2013长沙现场赛，二分)
摘要： Alice's Print Service Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1855 Accepted Submission(s) 阅读全文
posted @ 2015-11-01 01:38 Sunshine_tcf 阅读(264) 评论(0) 推荐(0) 编辑
HDU 4793 Collision (2013长沙现场赛，简单计算几何)
摘要： Collision Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 685 Accepted Submission(s): 248Special 阅读全文
posted @ 2015-11-01 01:25 Sunshine_tcf 阅读(485) 评论(0) 推荐(0) 编辑
HDU 5510 Bazinga (2015沈阳现场赛，子串判断)
摘要： Bazinga Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 214 Accepted Submission(s): 89 Problem De 阅读全文
posted @ 2015-11-01 01:14 Sunshine_tcf 阅读(333) 评论(0) 推荐(0) 编辑
HDU 5512 Pagodas (2015沈阳现场赛，找规律+gcd)
摘要： Pagodas Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 70 Accepted Submission(s): 62 Problem Des 阅读全文
posted @ 2015-11-01 00:59 Sunshine_tcf 阅读(485) 评论(0) 推荐(0) 编辑
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