Work-Life Balance Tips to Keep You Happy as a Blogger

  • 时间：2020-09-18 17:45:01
  • 分类：网络文摘
  • 阅读：138 次
Blogging is hard work. Some bloggers end up working 10 to 12 hour days. Of course, in addition to writing, bloggers often have to do SEO work, social media, networking, and many other things that can eat up the hours. Working all day, and w... ...

Binary Tree Zigzag Level Order Traversal Algorithms using DFS an

  • 时间：2020-09-18 17:39:21
  • 分类：网络文摘
  • 阅读：131 次
Given a binary tree, return the zigzag level order traversal of its nodes’ values. (ie, from left to right, then right to left for the next level and alternate between). For example: Given binary tree [3,9,20,null,null,15,7], 3 ... ...

The Next Permutation Algorithm in C++ (std::next_permutation)

  • 时间：2020-09-18 17:39:21
  • 分类：网络文摘
  • 阅读：127 次
Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement is not possible, it must rearrange it as the lowest possible order (ie, sorted in ascending order). Th... ...

Algorithms to Determine Unique Number of Occurrences

  • 时间：2020-09-18 17:39:21
  • 分类：网络文摘
  • 阅读：133 次
Given an array of integers arr, write a function that returns true if and only if the number of occurrences of each value in the array is unique. Example 1: Input: arr = [1,2,2,1,1,3] Output: true Explanation: The value 1 has 3 occurrences... ...

Beginner’s Guide to Python’ Enumerate Function

  • 时间：2020-09-18 17:39:21
  • 分类：网络文摘
  • 阅读：150 次
python You may see Python code like this: 1 2 for i,v in enumerate(data):   pass for i,v in enumerate(data): pass So, what does the enumerate() function do? The enumerate() in python takes a list as its first parameter, an... ...

Sliding Window to Get Equal Substrings Within MaxCost Budget

  • 时间：2020-09-18 17:39:21
  • 分类：网络文摘
  • 阅读：123 次
You are given two strings s and t of the same length. You want to change s to t. Changing the i-th character of s to i-th character of t costs |s[i] – t[i]| that is, the absolute difference between the ASCII values of the characters.... ...

Backpacking Problem Variation via Greedy Approach: How Many Appl

  • 时间：2020-09-18 17:39:21
  • 分类：网络文摘
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You have some apples, where arr[i] is the weight of the i-th apple. You also have a basket that can carry up to 5000 units of weight. Return the maximum number of apples you can put in the basket. Example 1: Input: arr = [100,200,150,1000]... ...

How to Reverse Substrings Between Each Pair of Parentheses using

  • 时间：2020-09-18 17:39:21
  • 分类：网络文摘
  • 阅读：132 次
You are given a string s that consists of lower case English letters and brackets. Reverse the strings in each pair of matching parentheses, starting from the innermost one. Your result should not contain any brackets. Example 1: Input: s ... ...

Intersection of Three Sorted Arrays using Three Pointers

  • 时间：2020-09-18 17:39:21
  • 分类：网络文摘
  • 阅读：142 次
Given three integer arrays arr1, arr2 and arr3 sorted in strictly increasing order, return a sorted array of only the integers that appeared in all three arrays. Example 1: Input: arr1 = [1,2,3,4,5], arr2 = [1,2,5,7,9], arr3 = [1,3,4,5,8]... ...

Counting the Stepping Numbers between A Range using Depth/Breadt

  • 时间：2020-09-18 17:39:21
  • 分类：网络文摘
  • 阅读：144 次
A Stepping Number is an integer such that all of its adjacent digits have an absolute difference of exactly 1. For example, 321 is a Stepping Number while 421 is not. Given two integers low and high, find and return a sorted list of all th... ...