return0 # caluate the daily gains, break into a subarray problem gains=[prices[i]-prices[i-1]foriinrange(1,len(prices))] loc_max=global_max=0#not gains[0] in case of negative foriinrange(len(gains)): loc_max=max
// Solution 1: This problem can be quite challenging if it's your first attempt. I didn't work it out after almost two hour, so I referred to this solution from the internet. Very clever and efficient. 代码1 // Code 1 117 Populating Next Right Pointers in Each Node II // #117 填...
参考: https://discuss.leetcode.com/topic/19853/kadane-s-algorithm-since-no-one-has-mentioned-about-this-so-far-in-case-if-interviewer-twists-the-input https://en.wikipedia.org/wiki/Maximum_subarray_problem http://www.algorithmist.com/index.php/Kadane's_Algorithm...
The logic to solve this problem is same as “max subarray problem” usingKadane's Algorithm. Since no body has mentioned this so far, I thought it’s a good thing for everybody to know. All the straight forward solution should work, but if the interviewer twists the question slightly by ...
第二是problem solving,要展示自己的解决问题的策略。比如选数据结构什么的,一定要讲明白为什么要用各种算法和数据结构。 第三是coding。在前面两步的基础上,写出来干净正确的代码。 第四是testing,一定要回去验证自己的代码。这个过程中可以分析一下代码的复杂度。 怎么去练以上的步骤,有详细过程解析的入门教程就能...
Notes: It is intended for this problem to be specified vaguely (ie, no given input specs). You are responsible to gather all the input requirements up front. spoilers alert… click to show requirements for atoi. Requirements for atoi: The function first discards as many whitespace characters ...
This problem was inspired by this original tweet by Max Howell: Google: 90% of our engineers use the software you wrote (Homebrew), but you can’t invert a binary tree on a whiteboard so fuck off. 【解答】这个段子已经在互联网上广为流传了,实际事情的背景我们不得而知。不过如果真是...
218 The Skyline Problem C++ Hard 217 Contains Duplicate C++ Easy 216 Combination Sum III C++ Medium 215 Kth Largest Element in an Array C++ Medium 214 Shortest Palindrome C++ Hard 213 House Robber II C++ Medium 212 Word Search II C++ Hard 211 Add and Search Word - Data structure design C++...
Note: All explanations are written in Github Issues, please do not create any new issue or pull request in this project since the problem index should be consistent with the issue index, thanks! ('$' means the problem is locked on Leetcode, '*' means the problem is related to Database...
121. Best Time to Buy and Sell Stock https://leetcode.com/problems/best-time-to-buy-and-sell-stock/ prublem desc 比较简单,但是看了一会没什么思路,看了discuss区的答案。思路是遍历每天的股价,记录今日之前的最低价和最高收益,和今日股价比较更新最低价,最高收益和今天卖出的收益比较更新。一刷一次...