107. Binary tree sequence traversal II
Given a binary tree, return a bottom-up sequence traversal of its node values. Example 1: for example: given a binary tree: [3,9,20,nul
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Tag: leetcode
2208. Minimum number of operations to halve array sum (priority queue)
February 6, 2024
by Aarna Swamy
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2208. Cut arrays and halve the minimum number of leetcode operations link: https://leetcode-cn.com/problems/minimum-operations-to-halve-array-
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Leetcode 74. Search a 2D Matrix (Python)
February 6, 2024
by Brooke Wright
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This problem examines binary search values in a two-dimensional array, but because the constraints are very loose, the brute force solution will pass
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728. Self-divisor
February 6, 2024
by 葉惠如
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Offer to come, dig friends take it! I am participating in the 2022 Spring Recruit Punch card activity. Click here for details. 【 brush topic...
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Helical matrix II
February 6, 2024
by Kirk Martin
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Given a positive integer n, generate an n x n square matrix matrix containing all elements from 1 to n2 in a clockwise spiral order.
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The region around leetcode_130
February 6, 2024
by Andrew Forsyth
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You are given an m x n matrix board consisting of characters' x 'and 'O', find all the regions surrounded by' x ', and fill...
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[Brush question Diary] 2024. The most troubling degree of examination
February 6, 2024
by 曾哲瑋
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Offer to come, dig friends take it! I am participating in the 2022 Spring Recruit Punch card activity. Click here for details. 【 brush 题...
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Leetcode 207.course Schedule (Python)
February 6, 2024
by 丁雅筑
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Leetcode 207. Course Schedule (Python) examines whether there is a ring problem in the graph, using both DFS and BFS
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Leetcode 2208. Cut the array and halve the minimum number of operations
February 6, 2024
by Susan Wang
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Leetcode 2208. Take the array and halve the minimum number of operations to give you a positive integer array nums. In each operation, you can...
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Leetcode alternately prints FooBar in multiple threads
February 6, 2024
by Anthony Peterson
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The condition of ReentrantLock is used to control the condition. ReentrantLoc is used to control the condition of ReentrantLock
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Leetcode693. Alternate binary numbers 【 learn and use bitsets 】
February 6, 2024
by Jason Ryan
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Leetcode693. Alternate binary number solution ideas, written in Java and C++ two languages respectively, and the use of classes and methods to learn and record.
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The length of the last Word (No.58)
February 6, 2024
by Devin Padilla
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Topic: Length of last Word Example: Think: implement:
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The circumference of the island
February 6, 2024
by 王志偉
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Given a two-dimensional grid map containing 0 and 1, where 1 represents land and 0 represents water. The cells in the grid are connected horizontally...
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Leetcode 2215. Find the Difference of Two Arrays (Python)
February 6, 2024
by Dale Bishop
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This is the first question in the 286 session of the week, difficulty Eazy, mainly investigates the traversal and basic operation of the list, can...
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Leetcode 210. Course Schedule II (Python)
February 6, 2024
by Sarah Green
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Leetcode 210. Course Schedule II (Python) using BFS
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Leetcode 2216. Minimum Deletions to Make Array Beautiful (Python)
February 6, 2024
by Kathy Owens
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This is the second question on session 286 of the week. On Medium, we're going to focus on greedy algorithms
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Leetcode 1266. Minimum time to access all points
February 6, 2024
by Anne Anderson
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Leetcode 1266. The minimum time to access all points there are n points on the plane whose positions are represented by integer coordinates points[I] =...
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Leetcode167 Sum of two numbers II – enter ordered array | swipe problem punch 02
February 6, 2024
by 龍美玲
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Was hoping to make some difficult questions, but I found that the difficulty is too big, I still not considerate, write an article on the...
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693. Alternate binary numbers
February 6, 2024
by Leslie Hansen-O'Neill
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Offer to come, dig friends take it! I am participating in the 2022 Spring Recruit Punch card activity. Click here for details. 【 brush question...
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67. Binary summation
February 6, 2024
by Sonya Reynolds
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"This is the 15th day of my Participation in the November Gwen Challenge, event details: The Last Gwen Challenge 2021" The topic gives you two...
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The spiral matrix I
February 6, 2024
by Lauren Short
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You are given a matrix matrix with m rows and n columns. Please return all elements in the matrix in clockwise spiral order. This topic...
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[LeetCode][golang] 1
February 6, 2024
by Melissa Jenkins
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I attended an interview and was asked the question of the sum of two numbers. At the beginning, I thought it was to use some...
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67. Binary sum
February 6, 2024
by Elliot Chadwick-Jones
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Offer to come, dig friends take it! I am participating in the 2022 Spring Recruit Punch card activity. Click here for details. 【 答 案...
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LeetCode 167: Sum of Two numbers II – Enter Two Sum II – Input array is sorted
February 6, 2024
by Chloe Webb
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Given an ordered array that has been sorted in ascending order, find two numbers that add up to the target number. The function should return...
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Rust implements full permutation
February 6, 2024
by Donna Holmes
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This article is the second part of rust to solve algorithm problems. The first article is rust to realize the sum of two numbers -...
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598. Sum of Scope II: Simple simulation
February 6, 2024
by Miss Hilary Rogers
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This is the 7th day of my participation in the Gwen Challenge in November. Check out the details: The Last Gwen Challenge in 2021. This...
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11. Container that holds the most water
February 6, 2024
by Anna Pedersen
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Offer to come, dig friends take it! I am participating in the 2022 Spring Recruit Punch card activity. Click here for details. 11. The container...
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276. Lowest Common Ancestor of a Binary Tree (Python)
February 6, 2024
by Dana Robertson
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Leetcode 236. Lowest Common Ancestor of a Binary Tree (Python) uses two different recursion solutions
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[167. Sum of two numbers II – Enter an ordered array]
February 6, 2024
by Robert Carpenter
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Given an ordered array that has been sorted in ascending order, find two numbers that add up to the target number. The function should return...
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2: Merge Two Sorted Lists
February 6, 2024
by Sumer Goyal
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Merges two ordered lists into a new ordered list and returns. A new list is formed by concatenating all the nodes of a given two...
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