02 2017 档案
摘要：Given the root of a tree, you are asked to find the most frequent subtree sum. The subtree sum of a node is defined as the sum of all the node values
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摘要：Given scores of N athletes, find their relative ranks and the people with the top three highest scores, who will be awarded medals: "Gold Medal", "Sil
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摘要：Given a circular array (the next element of the last element is the first element of the array), print the Next Greater Number for every element. The
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摘要：Given a binary search tree (BST) with duplicates, find all the mode(s) (the most frequently occurred element) in the given BST. Assume a BST is define
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摘要：Given a List of words, return the words that can be typed using letters of alphabet on only one row's of American keyboard like the image below. Examp
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摘要：Given an integer, return its base 7 string representation. Example 1: Example 2: Note: The input will be in range of [-1e7, 1e7]. 这道题给了我们一个数，让我们转为七进制的
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摘要：You need to find the largest value in each row of a binary tree. Example: 这道题让我们找二叉树每行的最大的结点值，那么实际上最直接的方法就是用层序遍历，然后在每一层中找到最大值，加入结果res中即可，参见代码如下： 解法一：
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摘要：Given a matrix of M x N elements (M rows, N columns), return all elements of the matrix in diagonal order as shown in the below image. Example: Note:
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摘要：Given a binary tree, find the leftmost value in the last row of the tree. Example 1: Example 2: Note: You may assume the tree (i.e., the given root no
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摘要：You are given two integer arrays nums1 and nums2 both of unique elements, where nums1 is a subset of nums2. Find all the next greater numbers for nums
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摘要：In LLP world, there is a hero called Teemo and his attacking can make his enemy Ashe be in poisoned condition. Now, given the Teemo's attacking ascend
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摘要：You are given a list of non-negative integers, a1, a2, ..., an, and a target, S. Now you have 2 symbols + and -. For each integer, you should choose o
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摘要：For a web developer, it is very important to know how to design a web page's size. So, given a specific rectangular web page’s area, your job by now i
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摘要：Given an integer array, your task is to find all the different possible increasing subsequences of the given array, and the length of an increasing su
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摘要：There is a ball in a maze with empty spaces and walls. The ball can go through empty spaces by rolling up, down, left or right, but it won't stop roll
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摘要：将Qt4的项目迁到Qt5中并不需要新建一个Qt5的工程，可以直接在原工程文件上修改，这里我们使用的是VS2010和Qt5.4的环境，我们需要做以下修改： 1. 在工程里找到这个文件：工程名.vcxproj.user,将里面的Qtdir路径修改为：C:\Qt\5.4\msvc2010_opengl。我
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摘要：Given a binary array, find the maximum number of consecutive 1s in this array if you can flip at most one 0. Example 1: Input: [1,0,1,1,0] Output: 4 E
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Solve Error : Undefined function or variable ‘setInitialWorkingFolder’. Error in matlabrc (line 197)
摘要：When compile program using Visual Studio 2015, Matlab 2016b, and OpenCV 3.1.0, one might get the error as follow: Undefined function or variable ‘setI
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摘要：Given an array of scores that are non-negative integers. Player 1 picks one of the numbers from either end of the array followed by the player 2 and t
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摘要：By now, you are given a secret signature consisting of character 'D' and 'I'. 'D' represents a decreasing relationship between two numbers, 'I' repres
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摘要：在Qt和PCL联合编译的过程中，会出现各种各样的错误，解决这些错误的过程真是痛苦万分，所以总结一些常见错误方便自己也方便他人。比如我们要编译PCL1.8.0中的apps中的point_cloud_editor这个应用时，可能会遇到如下错误： 这个错误的解决方法很简单，哪个cpp文件产生了这些错误，就
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摘要：在编译一些大型SDK的时候，比如Qt，OpenCV, PCL, VTK, ITK等等，在VS中，我们需要将编译生成的.lib文件加入Linker->Input中，但是往往生成的.lib文件有很多很多个，一个一个的把名字加进来实在是太累，我们可以用cmd命令行来快速获得某个文件夹下的所有文件的名字，打
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摘要：Given a binary array, find the maximum number of consecutive 1s in this array. Example 1: Input: [1,1,0,1,1,1] Output: 3 Explanation: The first two di
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