原创 【LeetCode 945】 Minimum Increment to Make Array Unique
題目描述 Given an array of integers A, a move consists of choosing any A[i], and incrementing it by 1. Return the least
2020-06-03 22:47:14
原创 【LeetCode 283】Move Zeroes
題目描述 Given an array nums, write a function to move all 0’s to the end of it while maintaining the relative order of
2020-06-03 22:47:14
原创 【LeetCode 33】 Search in Rotated Sorted Array
題目描述 Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0,1,2,4
2020-06-03 22:47:14
原创 【LeetCode 983】 Minimum Cost For Tickets
題目描述 In a country popular for train travel, you have planned some train travelling one year in advance. The days o
2020-06-03 22:47:14
原创 【LeetCode 236】 Lowest Common Ancestor of a Binary Tree
題目描述 Given a binary tree, find the lowest common ancestor (LCA) of two given nodes in the tree. According to the de
2020-05-24 01:56:42
原创 【LeetCode 687】Longest Univalue Path
題目描述 Given a binary tree, find the length of the longest path where each node in the path has the same value. This
2020-05-24 01:56:42
原创 【LeetCode 114】 Flatten Binary Tree to Linked List
題目描述 Given a binary tree, flatten it to a linked list in-place. For example, given the following tree: 1 / \
2020-05-24 01:56:42
原创 【LeetCode 35】 Search Insert Position
題目描述 Given a sorted array and a target value, return the index if the target is found. If not, return the index whe
2020-05-24 01:56:42
原创 【LeetCode 315】 Count of Smaller Numbers After Self
題目描述 You are given an integer array nums and you have to return a new counts array. The counts array has the proper
2020-05-24 01:56:42
原创 【LeetCode 113】 Path Sum II
題目描述 Given a binary tree and a sum, find all root-to-leaf paths where each path’s sum equals the given sum. Note: A
2020-05-24 01:56:42
原创 【LeetCode 34】Find First and Last Position of Element in Sorted Array
題目描述 Given an array of integers nums sorted in ascending order, find the starting and ending position of a given ta
2020-05-24 01:56:42
原创 【LeetCode 295】Find Median from Data Stream
題目描述 Median is the middle value in an ordered integer list. If the size of the list is even, there is no middle val
2020-05-20 20:31:13
原创 【LeetCode 92】Reverse Linked List II
題目描述 Reverse a linked list from position m to n. Do it in one-pass. Note: 1 ≤ m ≤ n ≤ length of list. Example: Inpu
2020-05-20 20:31:13
原创 【LeetCode 224】Basic Calculator
題目描述 Implement a basic calculator to evaluate a simple expression string. The expression string may contain open (
2020-05-20 20:31:13
原创 【LeetCode 86】Partition List
題目描述 Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than
2020-05-20 20:31:13