原创 Leetcode 124 Binary Tree Maximum Path Sum 二叉樹最大路徑和
原題鏈接 https://leetcode.com/problems/binary-tree-maximum-path-sum/ 題目描述 Given a binary tree, find the maximum path su
2020-06-22 14:14:47
原创 Leetcode 188 Best Time to Buy and Sell Stock IV 至多k次買賣股票最大收益
原題地址 https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iv/ 題目描述 Say you have an array for which the ith
2020-06-22 12:46:26
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原创 Leetcode 130 Surrounded Regions
原題地址 https://leetcode.com/problems/surrounded-regions/ 題目描述 Given a 2D board containing ‘X’ and ‘O’, capture all re
2020-06-22 11:13:46
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原创 Leetcode 166 Fraction to Recurring Decimal 分數化小數
原題地址 https://leetcode.com/problems/fraction-to-recurring-decimal/ 題目描述 Given two integers representing the numerato
2020-06-22 11:13:46
原创 Leetcode 148 Sort List 單鏈表排序
原題鏈接 https://leetcode.com/problems/sort-list/ 題目描述 Sort a linked list in O(nlogn) time using constant space complex
2020-06-22 11:13:45
原创 Leetcode 173 Binary Search Tree Iterator 二叉查找樹迭代器
原題地址 https://leetcode.com/problems/binary-search-tree-iterator/ 題目描述 Implement an iterator over a binary search tre
2020-06-22 11:13:45
原创 Leetcode 179 Largest Number 構造最大數字
原題地址 https://leetcode.com/problems/largest-number/ 題目描述 Given a list of non negative integers, arrange them such th
2020-06-22 11:13:45
原创 Leetcode 162 Find Peak Element 查找峯值元素（極大值）
原題地址 https://leetcode.com/problems/find-peak-element/ 題目描述 A peak element is an element that is greater than its ne
2020-06-22 11:13:45
原创 Leetcode 152 Maximum Product Subarray 子數組最大乘積
原題地址 https://leetcode.com/problems/maximum-product-subarray/ 題目描述 Find the contiguous subarray within an array (con
2020-06-22 11:13:45
原创 Leetcode 200 Number of Islands 島的個數
原題地址 https://leetcode.com/problems/number-of-islands/ 題目描述 Given a 2d grid map of ‘1’s (land) and ‘0’s (water), cou
2020-02-23 12:59:42
原创 Leetcode 199 Binary Tree Right Side View 二叉樹右視圖
原題地址 https://leetcode.com/problems/binary-tree-right-side-view/ 題目描述 Given a binary tree, imagine yourself standing
2020-02-23 12:59:42
原创 Leetcode 150 Evaluate Reverse Polish Notation 反向波蘭表示法求值
原題地址 https://leetcode.com/problems/evaluate-reverse-polish-notation/ 題目描述 Evaluate the value of an arithmetic expre
2020-02-23 12:59:42
原创 Leetcode 151 Reverse Words in a String
原題地址 https://leetcode.com/problems/reverse-words-in-a-string/ 題目描述 Given an input string, reverse the string word b
2020-02-23 12:59:42
原创 Leetcode 131 Palindrome Partitioning 迴文分割
原題地址 https://leetcode.com/problems/palindrome-partitioning/ 題目描述 Given a string s, partition s such that every subs
2020-02-23 12:59:42
原创 Leetcode 208 Implement Trie (Prefix Tree) 實現字典樹 (前綴字典樹)
原題地址 https://leetcode.com/problems/implement-trie-prefix-tree/ 題目描述 Implement a trie with insert, search, and start
2020-02-23 12:59:42