148. Sort linked lists
Give you the head of the list, head, sort it in ascending order and return the sorted list. Example 1: Example 2: Example 3: Hint:...
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Tag: leetcode
17. Alphabetic combinations of telephone numbers
February 1, 2024
by Amira Lad
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Given a string containing only the numbers 2-9, return all the letter combinations it can represent. The answers can be returned in any order. The...
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Leetcode 2139. Minimum Moves to Reach Target Score (Python)
February 1, 2024
by 張佳穎
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This article introduces the second question of week 276. The difficulty Medium is not very difficult, but it examines greed. It can be used recursively...
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[Luffy] _leetCode – Interview question 02.04- Split linked list
February 1, 2024
by Ben Dale
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[B] give you a list of the first node head and a specific value **x, please separate the list so that all nodes less than...
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[Luffy]_LeetCode_394
February 1, 2024
by Grace Trask
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1. Push the characters in the string through a loop. 2. Concatenate numbers as they are encountered, since arrays may have multiple bits; 3. When...
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[list] LeetCode82. Delete sorting repeating elements in the list | |
February 1, 2024
by 蒙哲瑋
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First of all, it is required to delete all duplicate elements. Instead of retaining a duplicate element to create a virtual header node to build...
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Counting the number of vowel sequences: “linear DP” & “Matrix quick powers”
February 1, 2024
by 李嘉玲
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This is 1220 on LeetCode. Count the number of vowel sequences. Tag: "linear DP", "matrix fast power" give you an integer n, please help count...
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[luffie] _leetcode.1302. Sum of deepest leaf nodes
February 1, 2024
by Bailey McNabb
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Given the root node of a binary tree, return the sum of the deepest leaf nodes. Example 1: input: root = [1, 2, 3, 4,...
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Merge K ascending linked lists
February 1, 2024
by Gerald Watkins
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The description gives you an array of linked lists, each of which has been sorted in ascending order. Please merge all lists into one ascending...
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[LeetCode]82_ Delete duplicate elements II from sorted list
February 1, 2024
by Aidan Reardon
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Look a hundred times beauty, beauty is not necessarily yours. But you brush algorithm 100 times, knowledge is you ~~ who can nine layers of...
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Leetcode 849. Maximize Distance to Closest Person (Python)
February 1, 2024
by Rebecca O'Brien
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Leetcode 849. Maximize Distance to Closest Person (Python) Maintain two lists in different directions ahead of time
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Leetcode 290. Word Pattern (Python)
February 1, 2024
by 唐佩珊
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Leetcode 290. Word Pattern (Python) use a dictionary to solve the problem, but pay attention to the definition of "double mapping". There are a lot...
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1716. Calculate the force to withhold money from the bank: simple simulation
February 1, 2024
by Jonathan Harris-Watts
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This is 1716 in LeetCode. It is easy to calculate the amount of money deducted from the bank. Hercy wanted to save money to buy...
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373. Finding and smallest k-pair numbers: “Multiple Merge” & “dichotomy”
January 31, 2024
by Christopher Marsh
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This is 373 on LeetCode. Find the sum of the smallest pair of k-numbers with medium difficulty. Given two ascending integer arrays nums1 and nums2,
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[Luffy]_leetcode-315- Calculates the number of elements on the right that are smaller than the current element
January 31, 2024
by 羅雅萍
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Give you an integer array nums **. Return a new array counts ** as required. Counts [I] has the value nums less than nums
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LeetCode-129- Find the sum of the numbers from the root to the leaf
January 31, 2024
by Matthew Skinner
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Leetcode-129 - Find the sum of the numbers from the root node to the leaf node, and give you the root node of the binary...
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Leetcode 8. String to Integer (atoi) (Python)
January 31, 2024
by Jennifer Brown
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Leetcode 8. String to Integer (Atoi) (Python)
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Leetcode 452. Minimum Number of Arrows to Burst Balloons (Python)
January 31, 2024
by 楊怡婷
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Leetcode 452. Minimum Number of Arrows to Burst Balloons (Python
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[luffy]_leetcode-264- Ugly number II
January 31, 2024
by Dr. Natasha Whittaker
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[答 案] [B station address] You are given an integer n, please find and return the NTH ugly number. Ugly numbers are positive integers that...
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[Luffy]_leetcode-684- Redundant connection
January 31, 2024
by Amber Salazar
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The tree can be regarded as a connected and acyclic undirected graph. Given the graph after adding an edge to a tree with n nodes...
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[LeetCode]138_ Copy list with random pointer
January 31, 2024
by Debra Sampson
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Look a hundred times beauty, beauty is not necessarily yours. But you brush algorithm 100 times, knowledge is you ~~ who can nine layers of...
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[Luffy]_leetcode-86- Separated linked list
January 31, 2024
by Garrett Marks
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This is the 23rd day I participate in the last text challenge of 2021. I give you a list of the head node head and...
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[Luffy]_leetcode-1- Sum of two numbers
January 31, 2024
by Cole Salas
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Given an array of integers (nums) and an integer target value (target), find the target value (t) in the array and select the target value...
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[Luffy]_leetcode- Finger Offer 26- Tree substructure
January 31, 2024
by Christopher Marsh
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[topic address] [station B address] Enter two binary trees A and B to determine whether B is A substructure of A. (Empty tree is not...
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“Leetcode” 141- Circular Linked List (Two solutions & notes of JS implementation)
January 31, 2024
by Prisha Dugar
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Leetcode first article, from the linked list to start learning algorithm ~ a simple circular linked list solution of the two ideas and implementation, welcome...
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Balanced binary tree
January 31, 2024
by Gillian Patterson
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Given a binary tree, determine if it is a highly balanced binary tree. In this case, a highly balanced binary tree is defined as follows:...
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88. Merge two ordered arrays, double pointer + front to back + new array Copy, JavaScript, annotated
January 31, 2024
by 劉懿
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Create a new array tempArr to hold the sorted results. Use the while loop to iterate over both arrays simultaneously. When nums1 [index1] & #...
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[Luffy]_leetcode- Reference Offer II 004- number that appears only once
January 31, 2024
by Anne Anderson
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You are given an integer array nums where each element appears exactly three times except for one element. Would you please
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ACM contestant illustration LeetCode circular linked list
January 31, 2024
by Judith Smith-Potter
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Hey, guys. I'm balls. Today, we are going to cut the circular list, which is still a frequent interview question. Judging circular lists is a...
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[luffy]_leetcode- Offer 10-i – Fibonacci
January 31, 2024
by Lindsay Smith
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Write a function, input n, to find the NTH term of the Fibonacci sequence (F(n)). The Fibonacci sequence is defined as follows: the Fibonacci sequence...
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