Black Box Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 8754 Accepted: 3599 Description Our Black Box represents a primitive database. It can save an integer array and has a special i variable. At the initial moment Black Box is empty an…
D: 399. Who Is Joyful 时间限制 3000 ms 内存限制 65536 KB 题目描述 There are several little buddies standing in a line. We say someone is a joyful little buddy, if there exists a little buddy whose height is smaller than him in the front of him and there exists a…
Problem Description Unlike single maze, double maze requires a common sequence of commands to solve both mazes. See the figure below for a quick understanding. A maze is made up of 6*6 cells. A cell can be either a hole or a square. Moreover, a cell…
题目传送门 K-th Number Time Limit: 20000MS Memory Limit: 65536K Total Submissions: 69053 Accepted: 24471 Case Time Limit: 2000MS Description You are working for Macrohard company in data structures department. After failing your previous task about ke…
题意 Estimation Time Limit: 40000/15000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 1045 Accepted Submission(s): 392 Problem Description "There are too many numbers here!" your boss bellows. "How am…
任意门:http://poj.org/problem?id=1984 Navigation Nightmare Time Limit: 2000MS Memory Limit: 30000K Total Submissions: 7783 Accepted: 2801 Case Time Limit: 1000MS Description Farmer John's pastoral neighborhood has N farms (2 <= N <= 40,000), usuall…
题目链接:https://vjudge.net/problem/POJ-2104 K-th Number Time Limit: 20000MS Memory Limit: 65536K Total Submissions: 64110 Accepted: 22556 Case Time Limit: 2000MS Description You are working for Macrohard company in data structures department. After…
B. Box Permutation p is a sequence of integers p=[p1,p2,-,pn], consisting of n distinct (unique) positive integers between 1 and n, inclusive. For example, the following sequences are permutations: [3,4,1,2], [1], [1,2]. The following sequences are n…
实用的SQL语句 行列互转 create table test(id int,name varchar(20),quarter int,profile int) insert into test values(1,'a',1,1000)insert into test values(1,'a',2,2000)insert into test values(1,'a',3,4000)insert into test values(1,'a',4,5000)insert into test va…
Implement the following operations of a stack using queues. push(x) -- Push element x onto stack. pop() -- Removes the element on top of the stack. top() -- Get the top element. empty() -- Return whether the stack is empty. Notes: You may assume that…
Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center). For example, this binary tree is symmetric: 1 / \ 2 2 / \ / \ 3 4 4 3 But the following is not: 1 / \ 2 2 \ \ 3 3 Note:Bonus points if you could solve it b…
行列互转 ) select * from test2 --列转行 select id,name,quarter,profile from test2 unpivot ( profile for quarter in ([Q1],[Q2],[Q3],[Q4]) ) as unpvt sql替换字符串 substring replace SQL查询一个表内相同纪录 having 如果一个ID可以区分的话,可以这么写 ) 如果几个ID才能区分的话,可以这么写 其他回答:数据表是zy_bho,想找…
