The Best leetcode tutorial and blogs for Beginners and Experts at Moment For Technology

Small knowledge, big challenge! 405. Converting a Number to hexadecimal Given an integer, write an algorithm to convert the number to hexadecimal. For negative integers,...

The front end

LeetCode7 – Reverse Integer

January 27, 2024

by Caitlin Taylor DDS

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Given a 32 - bit signed integer, you need to invert each digit of the integer. Assuming that our environment can store only 32-bit signed...

The back-end

Leetcode 148. Sort List (python)

January 27, 2024

by Katie Kelly

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Leetcode 148. Sort List (Python) The first method uses brute force, the second uses built-in functions, and the third uses merge Sort

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[luffy] _leetCode 112. The number of nodes in a complete binary tree

January 27, 2024

by Robert Taylor

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The sum of paths is given to the root node of the binary tree and an integer targetSum representing the sum of the target nodes....

The back-end

Leetcode.561 array split I

January 27, 2024

by Darshit Loyal

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Given an array of integers of length 2N, nums, your task is to divide these numbers into N pairs, such as (A1, b1), (a2)

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Delete the last NTH node of the linked list

January 27, 2024

by Karen Wallace

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"This is the 19th day of my participation in the December Gwen Challenge. For details: The last Gwen Challenge 2021" 19. Give you a linked...

android

Reverse linked list II

January 27, 2024

by 尹哲瑋

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"This is the 19th day of my participation in the December Gwen Challenge. For details: The last Gwen Challenge 2021" 92. Reverse linked list II...

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Algorithm: thousandth bit formatting

January 27, 2024

by Jivika Grewal

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Usually, the amount of data we get from the front end to the back end is an integer. At this time, we need to convert...

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Numbers into operation times | 0 LeetCode brush notes

January 27, 2024

by Natalie Gonzalez

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This is the 26th day of my participation in the Last Revision Challenge in 2021. This is the last revision Challenge in 2021

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Leetcode brush questions once a day.014 | Longest Common Prefix

January 27, 2024

by 梁筱涵

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Title: Longest common prefix, original title: https://leetcode-cn.com/problems/longest-comm

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Leetcode brush questions once a day.88 | Merge Sorted Array

January 27, 2024

by Zachary Taylor

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Merge two ordered arrays (nums1, nums1, nums1, nums1, nums1, nums1, nums1, nums1, nums1, nums1, nums1, nums1)

The code of life

Leetcode 1403. Minimum Subsequence in non-increasing Order (Python)

January 27, 2024

by Chelsea Parrish DDS

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Leetcode 1403. Minimum Subsequence in non-increasing Order (Python)

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Leetcode brush questions once a day.058 | Length of Last Word

January 27, 2024

by Pamela Howell

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Leetcode gives you a string S, consisting of several words separated by one or more consecutive space characters

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Graph Connectivity With Threshold (Python)

January 27, 2024

by 周佳樺

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Leetcode 1627. Graph Connectivity With Threshold (python

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Leetcode 1616. Split Two Strings to Make Palindrome (Python)

January 27, 2024

by Wendy Thomas-Wade

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Leetcode 1616. Split Two Strings to Make Palindrome (Python) using greedy algorithm to solve the problem

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Rotation string

January 27, 2024

by Travis Porter

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This is my 26th day of the November Gwen Challenge. The last Gwen Challenge in 2021 "Rotate string string left-rotate implements a function that can...

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Lookup in a two-dimensional array

January 27, 2024

by Brooke Clark

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This is the 26th day of my participation in the November More Text challenge 2021 Last More Text Challenge "Search in two-dimensional array interview question...

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Leetcode 84. Largest rectangle in bar chart

January 27, 2024

by Elijah Williamson

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N non-negative integers are given to represent the heights of the columns in a bar graph. Each column is adjacent to each other and has...

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LeetCode 328. Odd-even linked lists 【c++/ Java 解析】

January 27, 2024

by 張思穎

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1. Given a single linked list, rank all the odd and even nodes together. Note that the odd and even nodes here refer to the...

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Leetcode brush questions once a day.007 | Reverse Integer

January 27, 2024

by Sean Khan-Bowen

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Integer inversion LeetCode requires that integers be signed, that is, the integer range after negative integer inversion [−231, 231 −]

reading

Leetcode 85. Maximum rectangle

January 27, 2024

by Bhamini Khalsa

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Given a two-dimensional binary matrix containing only 0 and 1, find the largest rectangle containing only 1 and return its area. This problem can be...

The code of life

LeetCode (Section 2)

January 27, 2024

by Krystal Mason-Duncan

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LeetCode brushes the questions regularly, with 10 questions in each period. Comrades with heavy business can look at the ideas I share, which are not...

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LeetCode forces-front, middle, and back traversal of binary trees

January 27, 2024

by 周琬婷

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1. Recursion 2. Iteration

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Leetcode_622 designs the loop queue

January 27, 2024

by 張家銘

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Ask to design your loop queue implementation. A circular queue is a linear data structure that operates on a FIFO (first-in, first-out) basis and the...

The code of life

Leetcode_696 counts binary substrings

January 27, 2024

by Samarth Sant

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Given a string s, count the number of non-empty (continuous) substrings with the same number of zeros and ones, and all zeros and all ones...

The front end

LeetCode — a list of K flips (three Pointers)

January 26, 2024

by 孫靜怡

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First, determine whether the length of the incoming linked list is less than K. If it is less than K, return the original linked list....

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119. Insertion Sort List (Python)

January 26, 2024

by Chelsea Zimmerman

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Insertion Sort List (Python) searches and inserts in linked lists