随笔分类 -  数论

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POJ 1380 Equipment Box （暴力枚举）
摘要：Equipment Box 题目链接： http://acm.hust.edu.cn/vjudge/contest/130510 problem/B Description There is a large room in the Pyramid called Room of No Return. 阅读全文
posted @ 2016-08-28 23:33 Sunshine_tcf 阅读(352) 评论(0) 推荐(0) 编辑
UVALive 6862 Triples （找规律 暴力）
摘要：Triples 题目链接： http://acm.hust.edu.cn/vjudge/contest/130303 problem/H Description http://7xjob4.com1.z0.glb.clouddn.com/4c05ed01e62e808388fc90e37554d58 阅读全文
posted @ 2016-08-26 17:11 Sunshine_tcf 阅读(345) 评论(0) 推荐(0) 编辑
Educational Codeforces Round 16 D. Two Arithmetic Progressions （不互质中国剩余定理）
摘要：Two Arithmetic Progressions 题目链接： http://codeforces.com/contest/710/problem/D Description You are given two arithmetic progressions: a1k + b1 and a2l  阅读全文
posted @ 2016-08-24 00:24 Sunshine_tcf 阅读(639) 评论(0) 推荐(0) 编辑
UVALive 3958 Weird Numbers （负进制数）
摘要：Weird Numbers 题目链接： http://acm.hust.edu.cn/vjudge/contest/129733 problem/F Description Binary numbers form the principal basis of computer science. Mo 阅读全文
posted @ 2016-08-23 15:55 Sunshine_tcf 阅读(250) 评论(0) 推荐(0) 编辑
Codeforces Round #368 (Div. 2) C. Pythagorean Triples（数学）
摘要：Pythagorean Triples 题目链接： http://codeforces.com/contest/707/problem/C Description Input Output Examples input 3 output 4 5 input 6 output 8 10 input 1 阅读全文
posted @ 2016-08-21 12:28 Sunshine_tcf 阅读(192) 评论(0) 推荐(0) 编辑
UVALive 7455 Linear Ecosystem （高斯消元）
摘要：Linear Ecosystem 题目链接： http://acm.hust.edu.cn/vjudge/contest/127401 problem/B Description http://7xjob4.com1.z0.glb.clouddn.com/99b0fe905e5bd89a24c882 阅读全文
posted @ 2016-08-17 20:00 Sunshine_tcf 阅读(417) 评论(0) 推荐(0) 编辑
HDU 5778 abs （枚举）
摘要：abs 题目链接： http://acm.hdu.edu.cn/showproblem.php?pid=5778 Description Given a number x, ask positive integer y≥2, that satisfy the following conditions 阅读全文
posted @ 2016-08-16 23:40 Sunshine_tcf 阅读(302) 评论(0) 推荐(0) 编辑
HDU 5833 Zhu and 772002 （高斯消元）
摘要：Zhu and 772002 题目链接： http://acm.hdu.edu.cn/showproblem.php?pid=5833 Description Zhu and 772002 are both good at math. One day, Zhu wants to test the a 阅读全文
posted @ 2016-08-14 18:22 Sunshine_tcf 阅读(1046) 评论(0) 推荐(0) 编辑
HDU 5826 physics （积分推导）
摘要：physics 题目链接： http://acm.hdu.edu.cn/showproblem.php?pid=5826 Description There are n balls on a smooth horizontal straight track. The track can be con 阅读全文
posted @ 2016-08-11 17:39 Sunshine_tcf 阅读(492) 评论(0) 推荐(0) 编辑
HDU 5794 A Simple Chess （容斥+DP+Lucas）
摘要：A Simple Chess 题目链接： http://acm.hdu.edu.cn/showproblem.php?pid=5794 Description There is a n×m board, a chess want to go to the position (n,m) from th 阅读全文
posted @ 2016-08-05 00:45 Sunshine_tcf 阅读(242) 评论(0) 推荐(0) 编辑
HDU 5793 A Boring Question （找规律 : 快速幂+逆元）
摘要：A Boring Question 题目链接： http://acm.hdu.edu.cn/showproblem.php?pid=5793 Description Input The first line of the input contains the only integer T, Then 阅读全文
posted @ 2016-08-04 17:35 Sunshine_tcf 阅读(773) 评论(0) 推荐(0) 编辑
HDU 5768 Lucky7 （中国剩余定理 + 容斥 + 快速乘法）
摘要：Lucky7 题目链接： http://acm.hdu.edu.cn/showproblem.php?pid=5768 Description When ?? was born, seven crows flew in and stopped beside him. In its childhood 阅读全文
posted @ 2016-07-28 22:36 Sunshine_tcf 阅读(907) 评论(0) 推荐(0) 编辑
HDU 4919 Exclusive or （数论 or 打表找规律）
摘要：Exclusive or 题目链接： http://acm.hust.edu.cn/vjudge/contest/121336 problem/J Description Given n, find the value of Note: ♁ denotes bitwise exclusive or. 阅读全文
posted @ 2016-07-27 17:34 Sunshine_tcf 阅读(335) 评论(0) 推荐(0) 编辑
HDU 5742 It's All In The Mind （贪心）
摘要：It's All In The Mind 题目链接： http://acm.hdu.edu.cn/showproblem.php?pid=5742 Description Professor Zhang has a number sequence a1,a2,...,an. However, the 阅读全文
posted @ 2016-07-27 00:03 Sunshine_tcf 阅读(174) 评论(0) 推荐(0) 编辑
HDU 5752 Sqrt Bo （数论）
摘要：Sqrt Bo 题目链接： http://acm.hdu.edu.cn/showproblem.php?pid=5752 Description Let's define the function f(n)=⌊n−−√⌋. Bo wanted to know the minimum number y 阅读全文
posted @ 2016-07-26 23:52 Sunshine_tcf 阅读(314) 评论(0) 推荐(0) 编辑
HDU 5753 Permutation Bo （推导 or 打表找规律）
摘要：Permutation Bo 题目链接： http://acm.hdu.edu.cn/showproblem.php?pid=5753 Description There are two sequences h1∼hn and c1∼cn. h1∼hn is a permutation of 1∼n 阅读全文
posted @ 2016-07-26 23:21 Sunshine_tcf 阅读(250) 评论(2) 推荐(0) 编辑
HDU 5754 Life Winner Bo （博弈）
摘要：Life Winner Bo 题目链接： http://acm.hdu.edu.cn/showproblem.php?pid=5754 Description Bo is a "Life Winner".He likes playing chessboard games with his girlf 阅读全文
posted @ 2016-07-26 22:00 Sunshine_tcf 阅读(594) 评论(0) 推荐(0) 编辑
HDU 4861 Couple doubi （数论 or 打表找规律）
摘要：Couple doubi 题目链接： http://acm.hust.edu.cn/vjudge/contest/121334 problem/D Description DouBiXp has a girlfriend named DouBiNan.One day they felt very b 阅读全文
posted @ 2016-07-24 22:06 Sunshine_tcf 阅读(174) 评论(0) 推荐(0) 编辑
HDU 5656 CA Loves GCD （数论DP）
摘要：CA Loves GCD 题目链接： http://acm.hust.edu.cn/vjudge/contest/123316 problem/B Description CA is a fine comrade who loves the party and people; inevitably 阅读全文
posted @ 2016-07-23 19:00 Sunshine_tcf 阅读(371) 评论(0) 推荐(0) 编辑
HDU 5675 ztr loves math （数学推导）
摘要：ztr loves math 题目链接： http://acm.hust.edu.cn/vjudge/contest/123316 problem/A Description ztr loves research Math.One day,He thought about the "Lower Ed 阅读全文
posted @ 2016-07-23 19:00 Sunshine_tcf 阅读(217) 评论(0) 推荐(0) 编辑

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