摘要：
Given the coordinates of four points in 2D space, return whether the four points could construct a square. The coordinate (x,y) of a point is represen 阅读全文
posted @ 2017-05-27 23:33
Grandyang
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在Python中，处理中文字符一直是很令人头痛的问题，一言不合就乱码，而且引起乱码的原因也不尽相同，有时候是python本身默认的编码器设置的不对，有时候是使用的IDE的解码器不对，还有的时候是终端terminal的解码器不对，有时候同一份代码在Python2上正常运行，Python3上就不行了，反 阅读全文
posted @ 2017-05-25 23:16
Grandyang
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Given a 01 matrix M, find the longest line of consecutive one in the matrix. The line could be horizontal, vertical, diagonal or anti-diagonal. Exampl 阅读全文
posted @ 2017-05-24 20:35
Grandyang
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We define a harmonious array is an array where the difference between its maximum value and its minimum value is exactly 1. Now, given an integer arra 阅读全文
posted @ 2017-05-23 23:33
Grandyang
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Given a list of strings, you could concatenate these strings together into a loop, where for each string you could choose to reverse it or not. Among 阅读全文
posted @ 2017-05-22 01:39
Grandyang
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Given a list of positive integers, the adjacent integers will perform the float division. For example, [2,3,4] -> 2 / 3 / 4. However, you can add any 阅读全文
posted @ 2017-05-21 23:44
Grandyang
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在3D Slicer中，我们如果想在自己写的插件中来修改默认的鼠标响应事件的话，就需要先将原有的响应事件链接删除，然后建立自定义的响应事件链接，然后将自己要实现的功能写在响应事件函数中。 比如Slicer中默认的鼠标左键拖拽，是任意旋转视图中的Camera，默认中的滑轮操作是拉远和拉近视图摄像机，默 阅读全文
posted @ 2017-05-20 00:52
Grandyang
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Given an integer array nums, you need to find one continuous subarray that if you only sort this subarray in ascending order, then the whole array wil 阅读全文
posted @ 2017-05-19 06:21
Grandyang
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Given a positive integer n, return the number of all possible attendance records with length n, which will be regarded as rewardable. The answer may b 阅读全文
posted @ 2017-05-17 11:41
Grandyang
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Given a binary tree, you need to find the length of Longest Consecutive Path in Binary Tree. Especially, this path can be either increasing or decreas 阅读全文
posted @ 2017-05-16 23:56
Grandyang
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二分查找法作为一种常见的查找方法，将原本是线性时间提升到了对数时间范围，大大缩短了搜索时间，具有很大的应用场景，而在 LeetCode 中，要运用二分搜索法来解的题目也有很多，但是实际上二分查找法的查找目标有很多种，而且在细节写法也有一些变化。之前有网友留言希望博主能针对二分查找法的具体写法做个总结 阅读全文
posted @ 2017-05-15 08:40
Grandyang
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Given an array with n integers, you need to find if there are triplets (i, j, k) which satisfies following conditions: where we define that subarray ( 阅读全文
posted @ 2017-05-14 23:43
Grandyang
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You are given several boxes with different colors represented by different positive numbers. You may experience several rounds to remove boxes until t 阅读全文
posted @ 2017-05-13 22:16
Grandyang
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Given an integer array with even length, where different numbers in this array represent different kinds of candies. Each number means one candy of th 阅读全文
posted @ 2017-05-12 23:34
Grandyang
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Given a binary tree, return the values of its boundary in anti-clockwise direction starting from root. Boundary includes left boundary, leaves, and ri 阅读全文
posted @ 2017-05-10 00:17
Grandyang
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Given two non-empty binary trees s and t, check whether tree t has exactly the same structure and node values with a subtree of s. A subtree of s is a 阅读全文
posted @ 2017-05-09 01:01
Grandyang
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During the NBA playoffs, we always arrange the rather strong team to play with the rather weak team, like make the rank 1 team play with the rank nth 阅读全文
posted @ 2017-05-08 22:48
Grandyang
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Given an array of n distinct non-empty strings, you need to generate minimal possible abbreviations for every word following rules below. Example: Not 阅读全文
posted @ 2017-05-06 21:37
Grandyang
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Given two strings s1 and s2, write a function to return true if s2 contains the permutation of s1. In other words, one of the first string's permutati 阅读全文
posted @ 2017-05-05 22:45
Grandyang
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Given an array of integers and an integer k, you need to find the total number of continuous subarrays whose sum equals to k. Example 1: Input:nums = 阅读全文
posted @ 2017-05-04 22:46
Grandyang
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In MATLAB, there is a very useful function called 'reshape', which can reshape a matrix into a new one with different size but keep its original data. 阅读全文
posted @ 2017-05-03 23:22
Grandyang
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You need to construct a binary tree from a string consisting of parenthesis and integers. The whole input represents a binary tree. It contains an int 阅读全文
posted @ 2017-05-01 23:52
Grandyang
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Suppose LeetCode will start its IPO soon. In order to sell a good price of its shares to Venture Capital, LeetCode would like to work on some projects 阅读全文
posted @ 2017-04-30 08:47
Grandyang
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Given a binary tree, return the tilt of the whole tree. The tilt of a tree node is defined as the absolute difference between the sum of all left subt 阅读全文
posted @ 2017-04-29 23:49
Grandyang
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Given an array of 2n integers, your task is to group these integers into n pairs of integer, say (a1, b1), (a2, b2), ..., (an, bn) which makes sum of 阅读全文
posted @ 2017-04-27 23:57
Grandyang
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Think about Zuma Game. You have a row of balls on the table, colored red(R), yellow(Y), blue(B), green(G), and white(W). You also have several balls i 阅读全文
posted @ 2017-04-25 00:01
Grandyang
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Given a picture consisting of black and white pixels, and a positive integer N, find the number of black pixels located at some specific row R and col 阅读全文
posted @ 2017-04-24 02:26
Grandyang
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Given a picture consisting of black and white pixels, find the number of black lonely pixels. The picture is represented by a 2D char array consisting 阅读全文
posted @ 2017-04-23 22:43
Grandyang
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There is a ball in a maze with empty spaces and walls. The ball can go through empty spaces by rolling up (u), down (d), left (l) or right (r), but it 阅读全文
posted @ 2017-04-21 23:24
Grandyang
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You are given a string representing an attendance record for a student. The record only contains the following three characters: A student could be re 阅读全文
posted @ 2017-04-19 23:23
Grandyang
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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 阅读全文
posted @ 2017-04-17 22:58
Grandyang
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Given a positive 32-bit integer n, you need to find the smallest 32-bit integer which has exactly the same digits existing in the integer n and is gre 阅读全文
posted @ 2017-04-15 22:43
Grandyang
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Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order. E 阅读全文
posted @ 2017-04-13 12:17
Grandyang
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There is a brick wall in front of you. The wall is rectangular and has several rows of bricks. The bricks have the same height but different width. Yo 阅读全文
posted @ 2017-04-11 23:56
Grandyang
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There are N students in a class. Some of them are friends, while some are not. Their friendship is transitive in nature. For example, if A is a direct 阅读全文
posted @ 2017-04-09 23:05
Grandyang
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Given a list of strings, you need to find the longest uncommon subsequence among them. The longest uncommon subsequence is defined as the longest subs 阅读全文
posted @ 2017-04-07 23:38
Grandyang
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In the video game Fallout 4, the quest "Road to Freedom" requires players to reach a metal dial called the "Freedom Trail Ring", and use the dial to s 阅读全文
posted @ 2017-04-06 22:52
Grandyang
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Given a group of two strings, you need to find the longest uncommon subsequence of this group of two strings. The longest uncommon subsequence is defi 阅读全文
posted @ 2017-04-04 22:47
Grandyang
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Given two strings representing two complex numbers. You need to return a string representing their multiplication. Note i2 = -1 according to the defin 阅读全文
posted @ 2017-04-03 01:18
Grandyang
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Given an array nums, we call (i, j) an important reverse pair if i < j and nums[i] > 2*nums[j]. You need to return the number of important reverse pai 阅读全文
posted @ 2017-04-02 00:00
Grandyang
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