James Pan

原题网址：https://leetcode.com/problems/closest-binary-search-tree-value-ii/Given a non-empty binary search tree and a target value, find k values in the BST that are closest to the target.Note:

原题网址：https://leetcode.com/problems/contains-duplicate-ii/Given an array of integers and an integer k, find out whether there are two distinct indices i and j in the array such that nums[i] = num

原题网址：https://leetcode.com/problems/maximal-square/Given a 2D binary matrix filled with 0's and 1's, find the largest square containing all 1's and return its area.For example, given the foll

原题网址：https://leetcode.com/problems/moving-average-from-data-stream/Given a stream of integers and a window size, calculate the moving average of all integers in the sliding window.For exampl

原题网址：https://leetcode.com/problems/meeting-rooms-ii/Given an array of meeting time intervals consisting of start and end times [[s1,e1],[s2,e2],...] (si < ei), find the minimum number of confe

原题网址：https://leetcode.com/problems/minimum-window-substring/Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n).For ex

原题网址：https://leetcode.com/problems/remove-duplicate-letters/Given a string which contains only lowercase letters, remove duplicate letters so that every letter appear once and only once. You mus