天道酬勤007

摘要：You have n equal-length paragraphs numbered 1 to n . Now you want to arrange them in the order of 1 ; 2 ;:::;n . With the help of a clipboard, you can 阅读全文

摘要：/** 题目：埃及分数问题 链接：lrj算法竞赛入门经典P206 题意：在古埃及，人们使用单位分数的和(即 1/a, a是自然数)表示一切有理数。例如，2/3 = 1/2+1/6; 但不允许:2/3 = 1/3 + 1/3; 因为在加数中不允许有相同的。 对一个分数a/b， 表示方法有很多种，其中加数少的比加数多的好，如果加数个数相同，则最小的分数越大越好。 eg: 19/45=1/3 + 1/... 阅读全文

摘要：/** 题目： 链接： 题意： 思路： */ #include #include #include #include #include #include using namespace std; typedef long long LL; const int mod=1e9+7; const int maxn=1e2+5; const double eps = 1e-12; in... 阅读全文

摘要：关于欧拉回路和欧拉路径 定义：欧拉回路：每条边恰好只走一次，并能回到出发点的路径欧拉路径：经过每一条边一次，但是不要求回到起始点 ①首先看欧拉回路存在性的判定： 一、无向图每个顶点的度数都是偶数，则存在欧拉回路。 二、有向图（所有边都是单向的）每个节顶点的入度都等于出度，则存在欧拉回路。 ②.欧拉路 阅读全文

摘要：John has n tasks to do. Unfortunately, the tasks are not independent and the execution of one task is only possible if other tasks have already been e 阅读全文

摘要：To My Girlfriend Time Limit: 2000/2000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1288 Accepted Submission(s): 492 阅读全文

摘要：Windows 10 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2096 Accepted Submission(s): 630 Probl 阅读全文

摘要：/** 题目：2017计蒜之道 初赛 第二场 百度的科学计算器（简单） 链接：https://nanti.jisuanke.com/t/15504 题意：给一个合法的表达式，包含加号+、减号-、括号()、数字常量，表达式中没有空格。 输入数据保证数字常量以及计算过程中数值绝对值均不超过 10^12​​，对于浮点型数值常量，保证小数点后不超过 6位。 思路：暴力模拟；python有函数可以直... 阅读全文

摘要：限量供应 Time limit per test: 4.0 seconds Time limit all tests: 4.0 seconds Memory limit: 256 megabytes 限量供应 Time limit per test: 4.0 seconds Time limit a 阅读全文

摘要：RPG的错排 Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 13155 Accepted Submission(s): 5378 Problem 阅读全文

摘要：Big Number Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 37732 Accepted Submission(s): 18174 Pr 阅读全文

摘要：不容易系列之(4)——考新郎 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 37629 Accepted Submission(s): 1378 阅读全文

摘要：Robot Time Limit: 12000/6000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 483 Accepted Submission(s): 244 Problem De 阅读全文

摘要：A Simple Chess Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 2597 Accepted Submission(s): 691 P 阅读全文

摘要：/** 题目：A Simple Nim 链接：http://acm.hdu.edu.cn/showproblem.php?pid=5795 题意：给定n堆石子，每堆有若干石子，两个人轮流操作，每次操作可以选择任意一堆取走任意个石子（不可以为空） 或者选择一堆，把它分成三堆，每堆不为空。求先手必胜，还是后手必胜。 思路： 组合游戏Nim； 计算出每一堆的sg值，然后取异或。异或和>0那么先手... 阅读全文

摘要：You are to determine the value of the leaf node in a given binary tree that is the terminal node of a path of least value from the root of the binary 阅读全文

摘要：Trees are fundamental in many branches of computer science (Pun definitely intended). Current state- of-the art parallel computers such as Thinking Machines’ CM-5 are based on fat trees . Quad- and o... 阅读全文

摘要：A number of K balls are dropped one by one from the root of a fully binary tree structure FBT. Each time the ball being dropped first visits a non-terminal node. It then keeps moving down, either fol... 阅读全文

摘要：Similar Subsequence Accepted : 10 Submit : 53 Time Limit : 10000 MS Memory Limit : 135536 KB Similar Subsequence For given sequence A=(a1,a2,…,an), a sequence S=(s1,s2,…,sn) has... 阅读全文

摘要：丽娃河的狼人传说 Time limit per test: 1.0 seconds Time limit all tests: 1.0 seconds Memory limit: 256 megabytes 丽娃河是华师大著名的风景线。但由于学校财政紧缺，丽娃河边的路灯年久失修，一到晚上就会出现走在河边要打着手电的情况，不仅非常不方便，而且影响安全：已经发生了大大小小的事故多起。 方便... 阅读全文

摘要：Longest Common Subsequence Accepted : 7 Submit : 66 Time Limit : 3000 MS Memory Limit : 65536 KB Longest Common Subsequence Bobo has a sequence A=(a1,a2,…,an) of length n. He wo... 阅读全文

摘要：Parentheses Accepted : 8 Submit : 19 Time Limit : 3000 MS Memory Limit : 65536 KB Parentheses Bobo has a very long sequence divided into n consecutive groups. The i-th group con... 阅读全文

摘要：#include #include #include #include using namespace std; deque dq; int main() { dq.push_front(102);///插入头部 dq.push_back(101);///插入尾部 sort(dq.begin(),dq.end()); deque::iterator it ... 阅读全文

摘要：Strange Optimization Accepted : 35 Submit : 197 Time Limit : 1000 MS Memory Limit : 65536 KB Strange Optimization Bobo is facing a strange optimization problem. Given n,m, he is... 阅读全文

摘要：Highway Accepted : 33 Submit : 137 Time Limit : 4000 MS Memory Limit : 65536 KB Highway In ICPCCamp there were n towns conveniently numbered with 1,2,…,n connected with (n−1) ro... 阅读全文

摘要：Partial Sum Accepted : 30 Submit : 119 Time Limit : 3000 MS Memory Limit : 65536 KB Partial Sum Bobo has a integer sequence a1,a2,…,an of length n. Each time, he selects two end... 阅读全文

摘要：//#include #include #include #include #include///调用time的头文件。 #include #include #include///调用rand的头文件。 #include///assert的头文件。 #define LL long long using namespace std; void fill_random_int(vector&v,i... 阅读全文

摘要：D. Powerful array time limit per test 5 seconds memory limit per test 256 megabytes input standard input output standard output An array of positive integers a1, a2, ..., an is given. Let us conside... 阅读全文

摘要：2038: [2009国家集训队]小Z的袜子(hose) Time Limit: 20 Sec Memory Limit: 259 MB Submit: 9443 Solved: 4334 [Submit][Status][Discuss] Description 作为一个生活散漫的人，小Z每天早上都要耗费很久从一堆五颜六色的袜子中找出一双来穿。终于有一天，小Z再也无法忍受这恼人的找袜子过... 阅读全文

摘要：GCD Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 10992 Accepted Submission(s): 4157 Problem Description Given 5 integers: a, b, c, d, ... 阅读全文

摘要：GCD Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2155 Accepted Submission(s): 1093 Problem Description The greatest common divisor GCD... 阅读全文