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# leetcode

LeetCode 114. Flatten Binary Tree to Linked List

Given a binary tree, flatten it to a linked list in-place. For example,

系统

原创 2023-09-05 09:15:15 47 阅读

LeetCode 116. Populating Next Right Pointers in Each Node

Given a binary tree struct TreeLinkNode {

系统

原创 2023-09-05 09:15:02 43 阅读

LeetCode 117. Populating Next Right Pointers in Each Node II

Follow up for problem "Populating Next Right Pointers in Each Node".

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原创 2023-09-05 09:14:49 56 阅读

131. Palindrome Partitioning

Given a string s, partition s such that every substring of the partition is a palindrome.Return all possible palindrome partitioning of

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原创 2023-09-05 09:14:20 53 阅读

152. Maximum Product Subarray

Find the contiguous subarray within an array (containing at least one number) which has the largest product.For example, given the array [2,3,-2,4],the co

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原创 2023-09-05 09:14:02 49 阅读

127. Word Ladder

Given two words (beginWord and endWord), and a dictionary's word list, find the length of shortest transformation sequence from at a

c++

List

原创 2023-09-05 09:13:56 50 阅读

135. Candy

There are N children standing in a line. Each child is assigned a rating value.You are giving candies to these children subjected to the following requirements:Each child must have at least on

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原创 2023-09-05 09:13:05 57 阅读

137. Single Number II

Given an array of integers, every element appears three times except for one, which appears exactly once. Find that single one.N

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原创 2023-09-05 09:13:00 13 阅读

162. Find Peak Element

A peak element is an element that is greater than its neighbors.Given an input array where num[i] ≠ num[i+1], find a peak element and return

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原创 2023-09-05 09:12:56 69 阅读

134. Gas Station

There are N gas stations along a circular route, where the amount of gas at station i is gas[i].You have a car with an unlimited gas tank and it costs cosn i to

ci

原创 2023-09-05 09:12:51 45 阅读

139. Word Break

Given a non-empty string s and a dictionary wordDict containing a list of non-empty words, determine if s can be segmented into a space-separated sequence of one or

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原创 2023-09-05 09:12:47 59 阅读

binary tree traver

1. preorder travelclass Solution {public: vector preorderTraversal(TreeNode* root) { vector result; stack myStack; Tree

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原创 2023-09-05 09:12:27 48 阅读

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