[Luffy]_leetcode-100- Same tree
Given the root nodes p and q of two binary trees, write a function to check whether the two trees are identical. Two trees are...
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Tag: leetcode
Leetcode refers to Offer 10-i. Fibonacci sequence
January 31, 2024
by Francesca Savage-Hope
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Write a function, type n, find the NTH term of the Fibonacci sequence (F(n)). The Fibonacci sequence is defined as follows
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[Luffy]_LeetCode 445 Add two numbers II
January 31, 2024
by Josephine Evans-Phillips
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They give you two non-empty lists to represent two non-negative integers. The highest digit is at the beginning of the list. They store only one...
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[Lufy]_leetcode-4- Find the median of two positive ordinal groups
January 31, 2024
by 余雅琪
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Given two positive (from small to large) arrays of m and n, nums1 and nums2, respectively. Please find and return these two positive
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[luffie]_leetcode-105- Construct a binary tree by traversing preorder and middle-order sequences
January 31, 2024
by Anvi Garg
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[答 案] [答 案] [答 案] Give a tree preorder and inorder. Construct a binary tree and return its root node. Example 1: Example 2:...
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[luffie]_leetcode-105- Construct a binary tree by traversing preorder and middle-order sequences
January 31, 2024
by Leslie Hansen-O'Neill
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Preorder and inorder for a given tree. Construct a binary tree and return its root node. Example 1: Example 2: Hint: 1 <= preorder.length <
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Luffy]_leetcode-947- Removes the most stones in a row or row
January 31, 2024
by Sarah Green
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[B] N stones are placed on integer coordinate points in a two-dimensional plane. There can be no more than one stone on each coordinate point....
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LeetCode: Super ugly number Java problem solving
January 31, 2024
by 王怡君
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The super ugly number is a positive integer whose prime factors all appear in the primes array. Given an integer n and an array of...
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[luffy]_leetcode-142- Ring linked list II
January 31, 2024
by Margaret Bryant
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Given a linked list, return to the first node where the list begins to loop. Returns NULL if the list is loopless. If there is...
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[Luffy]_leetcode-83- Removes duplicate elements from sorted list
January 31, 2024
by Prisha Dugar
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This is the 22nd day of my participation in the Last Update Challenge of November 2021. There is a linked list in ascending order. Here...
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[Luffy]_leetcode-1124- Maximum period of good behavior
January 31, 2024
by Cheryl Flores
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This is the 21st day of my participation in the Last Revision Challenge of 2021. Here is my work schedule (hours), which records the number...
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[Luffy]_leetcode-110- Balanced binary tree
January 31, 2024
by Hilary Reed
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Given a binary tree, determine whether it is a highly balanced binary tree. This is the 4th day of my November update Challenge. In this...
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Leetcode_113 Sum of paths II
January 31, 2024
by Joel Chandler
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Given the root node of the binary tree, root, and an integer target and targetSum, find all paths from the root node to the leaf...
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[Luffy]_leetcode- Interview question 02.07- Linked list intersection
January 31, 2024
by Oliver Butler
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This is the third day of my November update Challenge, the last update challenge in 2021. [topic address] [B station address]
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[luffy]_leetcode-779- the KTH syntax symbol
January 31, 2024
by Zara Subramaniam
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In the first line we write a 0. For each subsequent line, replace the 0 in the previous line with 01 and the 1 with...
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[Luffy]_leetcode-82- Removes duplicate elements II from sorted list
January 31, 2024
by Neelofar Roy
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This is the 23rd day of my participation in the November update Challenge, the last Update Challenge 2021. There is a linked list in ascending...
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[Luffy]_leetcode-1249- Removes invalid parentheses
January 31, 2024
by Juan Young
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[B] you are given a string s consisting of '(', ')' and lowercase letters. You need to remove the minimum number of '(' or ')'...
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LeetCode 652 looks for duplicate subtrees
January 31, 2024
by Benjamin Stevens
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Given a binary tree, return all repeated subtrees. For duplicate subtrees of the same class, you only need to return the root of any one...
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[luffy]_leetcode-101- symmetric binary tree
January 31, 2024
by 李馨儀
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Given a binary tree, check whether it is mirror - symmetric. For example, binary trees [1,2,2,3,4,4,3] are symmetric. But the following [1,2,2,null,3,null,3] is not mirrored
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[Luffy] Design Twitter – Li Buckle 355
January 31, 2024
by Susan Day
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Topic design a simplified version of Twitter (Twitter), users can realize sending tweets, follow/unfollow other users, can see the following people (including their own) of...
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[Luffy]_leetcode-1319- Number of network connection operations
January 31, 2024
by Nakul Sarin
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[B] Ethernet cables are used to connect n computers numbered from 0 to N-1 into a network. Connections [I] = [a, B] Indicates connections
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Print leetCode problem 933 in JavaScript – Number of recent requests
January 31, 2024
by Jasmine Simmons
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Maintains an array of timestamps for each request; The elements in this array are ordered, ascending; The maximum - minimum timestamp in this array <=3000;...
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[Luffy]_leetcode-112- Total of paths
January 31, 2024
by Susan Day
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You are given the root node of the binary tree and an integer targetSum representing the targetSum. Determine if there is a path from the...
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[Luffy]_leetcode-222- Number of nodes in a complete binary tree
January 31, 2024
by John Armstrong
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[B] find the number of nodes in a complete binary tree root. A complete binary tree is defined as follows: in a complete binary tree,...
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[Luffy]_leetcode-445- Add two numbers II
January 31, 2024
by Marion Johnson
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[B] gives you two non-empty lists to represent two non-negative integers. The highest digit is at the beginning of the list. They store only one...
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Binary tree traversal with JavaScript (iterative + recursive)
January 31, 2024
by Juan Young
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This article is about binary tree depth traversal, want to see the breadth traversal can retreat. This article will use recursion and iteration to traverse...
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Leetcode 141 if there is a circular linked list | punch brush
January 31, 2024
by Dharmajan Srinivas
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Given a linked list, determine whether there are rings in the list. If there is a node in the list that can be reached again...
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334. Increasing triadic subsequences: An application of greedy solutions to the longest ascending subsequence (LIS) problem
January 31, 2024
by Michele Bennett
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This is a sequence of 334. Increasing triplets in LeetCode. The difficulty is medium. Tag: "LIS", "longest ascending subsequence", "greedy", "dichotomous" give you an array...
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[Luffy]_leetcode-859- Intimate string
January 31, 2024
by Jonathan Harris-Watts
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I give you two strings S and goal, as long as we can get goal by swapping two letters in S
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[Luffy]_leetcode-1046- The weight of the last Stone
January 31, 2024
by 田雅萍
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[B] There is a pile of stones. Each stone has a positive integer weight. In each round, pick two of the heaviest stones and smash...
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