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C. Tennis Championship 题目链接 http://codeforces.com/contest/735/problem/C 题面 Famous Brazil city Rio de Janeiro holds a tennis tournament and Ostap Bende
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posted @ 2016-12-13 11:06
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B. Urbanization 题目链接 http://codeforces.com/contest/735/problem/B 题面 Local authorities have heard a lot about combinatorial abilities of Ostap Bender s
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posted @ 2016-12-13 10:50
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A. Ostap and Grasshopper 题面 On the way to Rio de Janeiro Ostap kills time playing with a grasshopper he took with him in a special box. Ostap builds a
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posted @ 2016-12-13 10:46
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Codeforces Beta Round 80 (Div. 2 Only) A Blackjack1 题意 一共52张扑克,A代表1或者11,2 10表示自己的数字,其他都表示10 现在你已经有一个queen了,问你有多少种方案,能够得到n点 题解 其实只用考虑三种情况,都考虑一下就好了,实在不行
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posted @ 2016-12-11 16:34
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Codeforces Beta Round 62 A Irrational problem 题意 f(x) = x mod p1 mod p2 mod p3 mod p4 问你[a,b]中有多少个数满足f(x)=x 题解 显然直接带进去就好了…… 代码 include using namespace
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posted @ 2016-12-10 00:39
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Codeforces Round 160 (Div. 1) A Maxim and Discounts 题意 给你n个折扣,m个物品,每个折扣都可以使用无限次,每次你使用第i个折扣的时候,你必须买q[i]个东西,然后他会送你{0,1,2}个物品,但是送的物品必须比你买的最便宜的物品还便宜,问你最少花
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posted @ 2016-12-08 13:13
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Codeforces Round 383 (Div. 2) A. Arpa’s hard exam and Mehrdad’s naive cheat 题意 求1378^n mod 10 题解 直接快速幂 代码 include using namespace std; long long quick
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posted @ 2016-12-07 11:43
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Codeforces Round 271 (Div. 2) A Keyboard 题意 给你一个字符串,问你这个字符串在键盘的位置往左边挪一位,或者往右边挪一位字符,这个字符串是什么样子 题解 模拟一下就好了 代码 include using namespace std; string s[3];
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posted @ 2016-12-06 12:54
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Codeforces Beta Round 83 (Div. 1 Only) A. Dorm Water Supply 题意 给你一个n点m边的图,保证每个点的入度和出度最多为1 如果这个点入度为0,那么这个点就是水龙头点。 如果这个点的出度为0,那么这个点就是储存点。 现在让你把所有水龙头到储存点
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posted @ 2016-12-05 23:20
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Codeforces Round 177 (Div. 1) A. Polo the Penguin and Strings 题意 让你构造一个长度为n的串,且里面恰好包含k个不同字符,让你构造的字符串字典序最小。 题解 先abababab,然后再把k个不同字符输出,那么这样就是最少 代码 inclu
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posted @ 2016-12-05 11:30
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Codeforces Round 182 (Div. 1)题解 A题:Yaroslav and Sequence1 题意: 给你$2 n+1$个元素,你每次可以进行无数种操作,每次操作必须选择其中n个元素改变符号,你的目的是使得最后所有数的和尽量大,问你答案是多少 题解: 感觉上就是构造题,手动玩一
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posted @ 2016-12-04 23:01
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4726: [POI2017]Sabota? 题目连接: http://www.lydsy.com/JudgeOnline/problem.php?id=4726 Description 某个公司有n个人, 上下级关系构成了一个有根树。其中有个人是叛徒(这个人不知道是谁)。对于一个人, 如果他 下属
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posted @ 2016-11-27 20:29
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B. Alyona and a tree 题目连接: http://codeforces.com/contest/739/problem/B Description Alyona has a tree with n vertices. The root of the tree is the vert
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posted @ 2016-11-26 00:51
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虽然这个队,以后再也没有了,但是他的模板,是永垂不朽的!【误 include __gnu_pbds::priority_queue Q; 优先队列,配对堆默认,从小到大! __gnu_pbds::priority_queue , pairing_heap_tag Q; __gnu_pbds::pri
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posted @ 2016-11-26 00:12
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C. Binary Table 题目连接: http://codeforces.com/problemset/problem/662/C Description You are given a table consisting of n rows and m columns. Each cell o
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posted @ 2016-11-26 00:09
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A. Alyona and mex 题目连接: http://codeforces.com/contest/739/problem/A Description Alyona's mother wants to present an array of n non negative integers t
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posted @ 2016-11-24 19:34
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2648: SJY摆棋子 题目连接: http://www.lydsy.com/JudgeOnline/problem.php?id=2648 Description 这天,SJY显得无聊。在家自己玩。在一个棋盘上,有N个黑色棋子。他每次要么放到棋盘上一个黑色棋子,要么放上一个白色棋子,如果是白色棋
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posted @ 2016-11-24 18:33
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3732: Network 题目连接: http://www.lydsy.com/JudgeOnline/problem.php?id=3732 Description 给你N个点的无向图 (1 using namespace std; const int N=200500; int n,m; st
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posted @ 2016-11-23 23:15
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Triangle 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5914 Description Mr. Frog has n sticks, whose lengths are 1,2, 3⋯n respectively. Wallice is a
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posted @ 2016-11-23 19:03
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GCD is Funny 题目连接: http://acm.hdu.edu.cn/showproblem.php?pid=5902 Description Alex has invented a new game for fun. There are n integers at a board an
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posted @ 2016-11-23 18:48
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E. Anton and Tree 题目连接: http://codeforces.com/contest/734/problem/E Description Anton is growing a tree in his garden. In case you forgot, the tree is
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posted @ 2016-11-16 14:43
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D. Anton and Chess 题目连接: http://codeforces.com/contest/734/problem/D Description Anton likes to play chess. Also, he likes to do programming. That is
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posted @ 2016-11-16 14:27
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C. Anton and Making Potions 题目连接: http://codeforces.com/contest/734/problem/C Description Anton is playing a very interesting computer game, but now h
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posted @ 2016-11-16 13:49
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B. Anton and Digits 题目连接: http://codeforces.com/contest/734/problem/B Description Recently Anton found a box with digits in his room. There are k2 dig
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posted @ 2016-11-16 13:15
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A. Anton and Danik 题目连接: http://codeforces.com/contest/734/problem/A Description Anton likes to play chess, and so does his friend Danik. Once they ha
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posted @ 2016-11-16 12:57
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4337: BJOI2015 树的同构 题目连接: http://www.lydsy.com/JudgeOnline/problem.php?id=4337 Description 树是一种很常见的数据结构。 我们把N个点,N 1条边的连通无向图称为树。 若将某个点作为根,从根开始遍历,则其它的点都
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posted @ 2016-11-08 11:44
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4300: 绝世好题 题目连接: http://www.lydsy.com/JudgeOnline/problem.php?id=4300 Description 给定一个长度为n的数列ai,求ai的子序列bi的最长长度,满足bi&bi 1!=0(2 using namespace std; con
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posted @ 2016-11-08 11:08
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C. Drazil and Park 题目连接: http://codeforces.com/contest/516/problem/C Description Drazil is a monkey. He lives in a circular park. There are n trees ar
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posted @ 2016-11-07 20:50
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B. Drazil and Tiles 题目连接: http://codeforces.com/contest/516/problem/B Description Drazil created a following problem about putting 1 × 2 tiles into an
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posted @ 2016-11-07 19:49
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A. Drazil and Factorial 题目连接: http://codeforces.com/contest/516/problem/A Description Drazil is playing a math game with Varda. Let's define for posit
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posted @ 2016-11-07 19:21
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2015 2016 Petrozavodsk Winter Training Camp, Nizhny Novgorod SU Contest B. Forcefield 题意 给你一维平面上n个镜子,镜子的朝向有正面和背面,如果光束从正面穿过,会摧毁镜子,并且光束会反向;如果从背面穿过的话,什么都
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posted @ 2016-11-02 11:00
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沈阳赛区总结 沈阳赛区其实没什么好说的,先把锅接好:我读错E题,浪费一个小时;全场梦游;花了部分时间去做数学题,没有丝毫作用(虽然做其他题感觉也没有作用);中后期题目完全不懂。 比赛经验其实我感觉我已经比较充足了,节奏有时候都会刻意去把控,完全是实力问题。自己平时切太多傻逼题了,遇到中难题目,自己就
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posted @ 2016-10-31 09:39
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WorldFinal 11 Trash Removal 题意 给你一个多边形,问这个多边形至少需要多宽的长度,才能把这个多边形放进去。 数据范围100 题解 数据范围只有100,暴力枚举两点,然后算最小距离就好了 代码 include using namespace std; const int m
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posted @ 2016-10-29 09:44
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2016 2017 CT S03E06: Codeforces Trainings Season 3 Episode 6 比赛连接: http://codeforces.com/gym/101124/ 代码地址 http://git.oschina.net/qscqesze/Acm/tree/mas
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posted @ 2016-10-16 22:25
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Xtreme9.0 Communities 题目连接: https://www.hackerrank.com/contests/ieeextreme challenges/challenges/communities Description Social media networks and the
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posted @ 2016-10-14 00:48
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Block Art 题目连接: https://www.hackerrank.com/contests/ieeextreme challenges/challenges/block art Description The NeoCubist artistic movement has a very
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posted @ 2016-10-14 00:28
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Xtreme8.0 Kabloom 题目连接: https://www.hackerrank.com/contests/ieeextreme challenges/challenges/kabloom Description The card game Kabloom is played with
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posted @ 2016-10-14 00:02
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Xtreme8.0 Kabloom 题目连接: https://www.hackerrank.com/contests/ieeextreme challenges/challenges/kabloom Description The card game Kabloom is played with
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posted @ 2016-10-13 23:50
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Taco Stand 题目连接: https://www.hackerrank.com/contests/ieeextreme challenges/challenges/taco stand Description An editorial for this problem is availabl
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posted @ 2016-10-13 23:19
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Mr. Pippo's Pizza 题目连接: https://www.hackerrank.com/contests/ieeextreme challenges/challenges/mr pippos pizza Description Mr. Pippo wants to start a ne
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posted @ 2016-10-13 23:00
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