06 2016 档案
摘要：You are given two jugs with capacities jug1Capacity and jug2Capacity liters. There is an infinite amount of water supply available. Determine whether
阅读全文
摘要：Assume you have an array of length n initialized with all 0's and are given k update operations. Each operation is represented as a triplet: [startInd
阅读全文
摘要：Given a non-negative integer represented as non-empty a singly linked list of digits, plus one to the integer. You may assume the integer do not conta
阅读全文
摘要：Given a set of distinct positive integers, find the largest subset such that every pair (Si, Sj) of elements in this subset satisfies: Si % Sj = 0 or
阅读全文
摘要：Given a positive integer num, write a function which returns True if num is a perfect square else False. Note: Do not use any built-in library functio
阅读全文
摘要：Given a non-empty 2D matrix matrix and an integer k, find the max sum of a rectangle in the matrix such that its sum is no larger than k. Example: Inp
阅读全文
摘要：Given a binary tree, collect a tree's nodes as if you were doing this: Collect and remove all leaves, repeat until the tree is empty. Example: Input:
阅读全文
摘要：Given a nested list of integers, return the sum of all integers in the list weighted by their depth. Each element is either an integer, or a list -- w
阅读全文
摘要：在使用OpenCV的三维立体重建的库时，一个重要的步骤就是生成左右视图的差异图Disparity，而控制生成disparity的参数的类是cv::StereoBM，我们有时候需要拷贝一份cv::StereoBM，然后改变其中的参数值，但是如果用默认的等号‘=’来进行拷贝，其实是浅拷贝，如果改变拷贝项
阅读全文
摘要：Design a hit counter which counts the number of hits received in the past 5 minutes. Each function accepts a timestamp parameter (in seconds granulari
阅读全文
摘要：在使用Qt和OpenCV混合编程时，我们有时需要在两种图片类cv::Mat和QImage之间进行转换，下面的代码参考了网上这个帖子： 还可以用下面的这个代码，参考了这个帖子：
阅读全文
摘要：Check if two binary trees are identical. Identical means the two binary trees have the same structure and every identical position has the same value.
阅读全文
摘要：Given a 2D grid, each cell is either a wall 'W', an enemy 'E' or empty '0' (the number zero), return the maximum enemies you can kill using one bomb.
阅读全文
摘要：在使用PCL库的时候，经常需要显示点云，可以用下面这段代码：
阅读全文
摘要：Given a sorted array of integers nums and integer values a, band c. Apply a quadratic function of the form f(x) = ax2 + bx + c to each element x in th
阅读全文
摘要：Design a logger system that receive stream of messages along with its timestamps, each message should be printed if and only if it is not printed in t
阅读全文
摘要：Given two arrays of length m and n with digits 0-9 representing two numbers. Create the maximum number of length k <= m + n from digits of the two. Th
阅读全文
摘要：Given a non-empty string s and an integer k, rearrange the string such that the same characters are at least distance k from each other. All input str
阅读全文
摘要：Given a non-negative integer n, count all numbers with unique digits, x, where 0 ≤ x < 10n. Example: Given n = 2, return 91. (The answer should be the
阅读全文
摘要：Given n points on a 2D plane, find if there is such a line parallel to y-axis that reflect the given points. Example 1: Input: [[1,1],[-1,1]] Output:
阅读全文
摘要：Design a simplified version of Twitter where users can post tweets, follow/unfollow another user, and is able to see the 10 most recent tweets in the
阅读全文
摘要：Design a data structure that supports the following two operations: addWord(word) and search(word)search(word) can search a literal word or a regular
阅读全文
摘要：Given a 2D board containing 'X' and 'O', capture all regions surrounded by 'X'.A region is captured by flipping all 'O''s into 'X''s in that surrounde
阅读全文
摘要：Given two arrays, write a function to compute their intersection.Notice Each element in the result should appear as many times as it shows in both arr
阅读全文
摘要：You have a number of envelopes with widths and heights given as a pair of integers (w, h). One envelope can fit into another if and only if both the w
阅读全文
摘要：Given two arrays, write a function to compute their intersection.Notice Each element in the result must be unique. The result can be in any order.Have
阅读全文
摘要：Qt可以跟VTK和PCL等其他库联合使用，十分强大，下面的代码展示了如何使用Qt联合PCL库来加载和保存PCL/PLY格式的点云： 通过按钮加载点云： 保存点云： 注意savePCDFileBinary是以二进制的方式来储存，这样保存出来的点云占的硬盘空间较小，但是使用例如notepad++等软件打
阅读全文
摘要：Given a binary tree, return all root-to-leaf paths.ExampleGiven the following binary tree: 1 / \2 3 \ 5All root-to-leaf paths are:[ "1->2->5", "1->3"]
阅读全文
摘要：Write an algorithm to determine if a number is happy. A happy number is a number defined by the following process: Starting with any positive integer,
阅读全文
摘要：Design a Snake game that is played on a device with screen size = width x height. Play the game online if you are not familiar with the game. The snak
阅读全文
摘要：在Qt中，我们有时候需要把一些参数写入xml文件，方便以后可以读入，类似一种存档读档的操作，例如，我们想生成如下的xml文件： 那么写入的操作请参见如下代码： 读入的操作请参见如下：
阅读全文
摘要：Factory is a design pattern in common usage. Please implement a ToyFactory which can generate proper toy based on the given type.ExampleToyFactory tf
阅读全文
摘要：Given a data stream input of non-negative integers a1, a2, ..., an, ..., summarize the numbers seen so far as a list of disjoint intervals. For exampl
阅读全文
