随笔分类 -  LeetCode

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LeetCode-206.ReverseLinked List
摘要：Reverse a singly linked list. Example: Follow up:A linked list can be reversed either iteratively or recursively. Could you implement both? 递归 进阶题 两两交 阅读全文
posted @ 2019-02-25 09:54 月半榨菜 阅读(120) 评论(0) 推荐(0)
LeetCode-169.Majority Element
摘要：Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times. You may assume that the 阅读全文
posted @ 2019-02-25 09:52 月半榨菜 阅读(99) 评论(0) 推荐(0)
LeetCode-155. Min Stack
摘要：Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) -- Push element x onto stack. pop() -- Remov 阅读全文
posted @ 2019-02-25 09:50 月半榨菜 阅读(93) 评论(0) 推荐(0)
LeetCode-136. Single Number
摘要：Given a non-empty array of integers, every element appears twice except for one. Find that single one. Note:Your algorithm should have a linear runtim 阅读全文
posted @ 2019-02-25 09:48 月半榨菜 阅读(98) 评论(0) 推荐(0)
LeetCode-121. Best Time to Buy and Sell Stock
摘要：Say 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 阅读全文
posted @ 2019-02-25 09:47 月半榨菜 阅读(146) 评论(0) 推荐(0)
LeetCode-104.Maxinum Depth of Binary Tree
摘要：Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest le 阅读全文
posted @ 2019-02-25 09:46 月半榨菜 阅读(102) 评论(0) 推荐(0)
LeetCode-70.Climbing Stairs
摘要：You are climbing a stair case. It takes n steps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you cli 阅读全文
posted @ 2019-02-25 09:45 月半榨菜 阅读(106) 评论(0) 推荐(0)
LeetCode-53.Maximum Subarray
摘要：Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and return its sum. Example: Foll 阅读全文
posted @ 2019-02-25 09:43 月半榨菜 阅读(123) 评论(0) 推荐(0)
LeetCode-21.Merge Two Sorted Lists
摘要：Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. Example: 阅读全文
posted @ 2019-02-25 09:41 月半榨菜 阅读(90) 评论(0) 推荐(0)
LeetCode-20.Valid Parentheses
摘要：Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: No 阅读全文
posted @ 2019-02-25 09:26 月半榨菜 阅读(142) 评论(0) 推荐(0)
LeetCode-2. Add Two Numbers
摘要：You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contai 阅读全文
posted @ 2019-02-25 09:23 月半榨菜 阅读(88) 评论(0) 推荐(0)
LeetCode-1. Two Sum
摘要：Given an array of integers, return indices of the two numbers such that they add up to a specific target.You may assume that each input would have exa 阅读全文
posted @ 2019-02-25 09:13 月半榨菜 阅读(138) 评论(0) 推荐(0)
LeetCode Top100 Liked Questions
摘要：1. TwoSum https://www.cnblogs.com/zhacai/p/10429120.html easy 2. Add Two Numbers https://www.cnblogs.com/zhacai/p/10429155.html easy 15.3Sum https://w 阅读全文
posted @ 2019-02-18 15:03 月半榨菜 阅读(189) 评论(0) 推荐(0)

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