Bruteforce Algorithm to Find the Next Closet Time Reusing the Cu

  • 时间：2020-09-20 13:49:13
  • 分类：网络文摘
  • 阅读：104 次
Given a time represented in the format “HH:MM”, form the next closest time by reusing the current digits. There is no limit on how many times a digit can be reused. You may assume the given input string is always valid. For exa... ...

Single-Row Keyboard Algorithms to Estimate the Finger Moving Tim

  • 时间：2020-09-20 13:49:13
  • 分类：网络文摘
  • 阅读：97 次
There is a special keyboard with all keys in a single row. Given a string keyboard of length 26 indicating the layout of the keyboard (indexed from 0 to 25), initially your finger is at index 0. To type a character, you have to move your f... ...

Compute the Minimum Costs to Connect the Sticks using Priority Q

  • 时间：2020-09-20 13:49:13
  • 分类：网络文摘
  • 阅读：108 次
You have some sticks with positive integer lengths. You can connect any two sticks of lengths X and Y into one stick by paying a cost of X + Y. You perform this action until there is one stick remaining. Return the minimum cost of connecti... ...

How to Get the Maximum Level Sum of a Binary Tree using Breadth

  • 时间：2020-09-20 13:49:13
  • 分类：网络文摘
  • 阅读：112 次
Given the root of a binary tree, the level of its root is 1, the level of its children is 2, and so on. Return the smallest level X such that the sum of all the values of nodes at level X is maximal. Example 1: Input: [1,7,0,7,-8,null,null... ...

Two Pointer and Sliding Window Algorithm to Find K-Length Substr

  • 时间：2020-09-20 13:49:13
  • 分类：网络文摘
  • 阅读：94 次
Given a string S, return the number of substrings of length K with no repeated characters. Example 1: Input: S = “havefunonleetcode”, K = 5 Output: 6 Explanation: There are 6 substrings they are : ‘havef’,’av... ...

How to Construct Minimum Spanning Tree using Kruskal or Breadth

  • 时间：2020-09-20 13:49:13
  • 分类：网络文摘
  • 阅读：82 次
There are N cities numbered from 1 to N. You are given connections, where each connections[i] = [city1, city2, cost] represents the cost to connect city1 and city2 together. (A connection is bidirectional: connecting city1 and city2 is the... ...

How to Find the Most Common Word in a String with a Banned List?

  • 时间：2020-09-20 13:49:13
  • 分类：网络文摘
  • 阅读：90 次
Given a paragraph and a list of banned words, return the most frequent word that is not in the list of banned words. It is guaranteed there is at least one word that isn’t banned, and that the answer is unique. Words in the list of b... ...

The Git Pre-Commit Hook to Avoid Pushing Only Unit Tests In Node

  • 时间：2020-09-20 13:49:13
  • 分类：网络文摘
  • 阅读：115 次
In NodeJS unit testing frameworks such as mocha/chai, you could add .only after describe or it, so that the specific set of tests are run, which excludes/disables all other tests. For example, 1 2 3 4 5 describe.only("I just want... ...

Man Steals ‘Six Figures’ Worth Of Bitcoins From Dark Web Users

  • 时间：2020-09-20 13:43:49
  • 分类：网络文摘
  • 阅读：100 次
While the Dark Web is hopefully somewhere you have never browsed, there is a particularly interesting story coming out it. One American man has been arrested for stealing from those looking to purchase illict goods. The Dark Web is a seedy... ...

Trick Or Treat: How Businesses Are Cashing In On Halloween

  • 时间：2020-09-20 13:43:49
  • 分类：网络文摘
  • 阅读：97 次
Halloween is upon us and 171 million Americans are getting in on the action. This holiday is expected to bring in more than $8.4 billion this year, growing $1.5 billion since 2015. Social media is obviously a required strategy, especially ... ...