Little Veggie

摘要： Design your implementation of the linked list. You can choose to use a singly or doubly linked list.A node in a singly linked list should have two att 阅读全文

摘要： Given a binary tree, imagine yourself standing on the right side of it, return the values of the nodes you can see ordered from top to bottom. Example 阅读全文

摘要： Design a data structure that follows the constraints of a Least Recently Used (LRU) cache. Implement the LRUCache class: LRUCache(int capacity) Initia 阅读全文

摘要： Given a collection of intervals, merge all overlapping intervals. Example 1: Input: intervals = [[1,3],[2,6],[8,10],[15,18]] Output: [[1,6],[8,10],[15 阅读全文

摘要： Given two words (beginWord and endWord), and a dictionary's word list, find the length of shortest transformation sequence from beginWord to endWord, 阅读全文

摘要： Given an array of integers nums sorted in ascending order, find the starting and ending position of a given target value. Your algorithm's runtime com 阅读全文

摘要： Given an array of meeting time intervals consisting of start and end times [[s1,e1],[s2,e2],...] (si < ei), find the minimum number of conference room 阅读全文

摘要： Given an array of strings products and a string searchWord. We want to design a system that suggests at most three product names from products after e 阅读全文

摘要： A string S of lowercase English letters is given. We want to partition this string into as many parts as possible so that each letter appears in at mo 阅读全文

摘要： Given an array nums, there is a sliding window of size k which is moving from the very left of the array to the very right. You can only see the k num 阅读全文