Python 刷Leetcode题库，顺带学英语单词（38）
Find Peak ElementA peak element is an element that is greater than its neighbors.Given an input array nums , where nums[i] ≠ nums[i+1] , find a peak element and return its index.The array may contain....
Python 刷Leetcode题库，顺带学英语单词（37）
Min StackDesign a stack that supports push, pop, top, and retrieving the minimum element in constant time. [#155]push(x) -- Push element x onto stack.pop() -- Removes the element on top of the....
Python 刷Leetcode题库，顺带学英语单词（36）
Find Minimum in Rotated Sorted ArraySuppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. [#153](i.e., [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,....
Python 刷Leetcode题库，顺带学英语单词（35）
Reverse Words in a StringGiven an input string, reverse the string word by word. [#151]Examples: Input: "the sky is blue" Output: "blue is sky the" Input: " hello world! " Output: "world....
Python 刷Leetcode题库，顺带学英语单词（34）
Single NumberGiven a non-empty array of integers, every element appears twice except for one. Find that single one. [#136]Note:Your algorithm should have a linear runtime complexity. Cou....
Python 刷Leetcode题库，顺带学英语单词（33）
Palindrome PartitioningGiven a string s, partition s such that every substring of the partition is a palindrome.Return all possible palindrome partitioning of s. [#131]Example: Input: "aab" Ou....
Python 刷Leetcode题库，顺带学英语单词（32）
Word LadderGiven two words (beginWord and endWord), and a dictionary's word list, find the length of shortest transformation sequence from beginWord to endWord, such that:1. Only one letter can be ch....
Python 刷Leetcode题库，顺带学英语单词（31）
Valid PalindromeGiven a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. [#125]Example: "A man, a plan, a canal: Panama" is a palindrome. "....
Python 刷Leetcode题库，顺带学英语单词（30）
Best Time to Buy and Sell StockSay you have an array for which the ith element is the price of a given stock on day i.If you were only permitted to complete at most one transaction (i.e., buy one and....
Python 刷Leetcode题库，顺带学英语单词（29）
Decode WaysA message containing letters from A-Z is being encoded to numbers using the following mapping:'A' -> 1 'B' -> 2 ... 'Z' -> 26Given a non-empty string containing only digits, deter....
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