原创 leetcode第9題（linked-list-cycle-ii）
題目： Given a linked list, return the node where the cycle begins. If there
2020-02-25 15:51:24
原创 leetcode第13題（copy-list-with-random-pointer）
題目： A linked list is given such that each node contains an additional ran
2020-02-25 15:51:24
原创 leetcode第27題（binary-tree-maximum-path-sum）
題目： Given a binary tree, find the maximum path sum. The path may start a
2020-02-25 15:51:24
原创 leetcode第28題（best-time-to-buy-and-sell-stock-iii）
題目： Say you have an array for which the i th element is the price of a gi
2020-02-25 15:51:24
原创 leetcode第12題（word-break）
題目： Given a string s and a dictionary of words dict, determine if s can b
2020-02-25 15:51:24
原创 leetcode第16題（candy）
題目： There are N children standing in a line. Each child is assigned a rat
2020-02-25 15:51:24
原创 leetcode第19題（palindrome-partitioning-ii）
題目：Given a string s, partition s such that every substring of the partition
2020-02-25 15:51:24
原创 leetcode第14題（single-number-ii）
題目： Given an array of integers, every element appears three times except
2020-02-25 15:51:24
1
原创 leetcode第23題（longest-consecutive-sequence）
題目： Given an unsorted array of integers, find the length of the longest consecutive elements sequence. For example,
2020-02-25 15:51:24
原创 leetcode第29題（best-time-to-buy-and-sell-stock-ii）
題目： Say you have an array for which the i th element is the price of a gi
2020-02-25 15:51:24
原创 surrounded-regions
題目： Given a 2D board containing'X'and'O', capture all regions surrounded b
2020-02-25 15:51:24
原创 leetcode第22題（sum-root-to-leaf-numbers）
題目： Given a binary tree containing digits from0-9only, each root-to-leaf path could represent a number. An example
2020-02-25 15:51:24
原创 leetcode第11題（word-break-ii）
題目： Given a string s and a dictionary of words dict, add spaces in s to c
2020-02-25 15:51:23
1
原创 leetcode第30題（best-time-to-buy-and-sell-stock）
題目： Say you have an array for which the i th element is the price of a given stock on day i. If you were only permi
2020-02-25 15:51:23
原创 leetcode第18題（clone-graph）
題目： Clone an undirected graph. Each node in the graph contains alabeland a list of itsneighbors. OJ's undirected gra
2020-02-25 15:51:23