小榕流光的专栏

题目链接: https://leetcode.com/problems/design-snake-game/Design a Snake game that is played on a device with screen size = width x height. Play the game online if you are not familiar with the ga

题目链接: https://leetcode.com/problems/lru-cache/Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and set.get(key) - Ge

题目链接:https://leetcode.com/problems/zigzag-iterator/Given two 1d vectors, implement an iterator to return their elements alternately.For example, given two 1d vectors:v1 = [1, 2]v2 = [3, 4

题目链接: https://leetcode.com/problems/flatten-2d-vector/Implement an iterator to flatten a 2d vector.For example,Given 2d vector =[ [1,2], [3], [4,5,6]]By calling next repe

题目链接: https://leetcode.com/problems/peeking-iterator/Given an Iterator class interface with methods: next() and hasNext(), design and implement a PeekingIterator that support the peek()operati

题目链接: https://leetcode.com/problems/design-hit-counter/Design a hit counter which counts the number of hits received in the past 5 minutes.Each function accepts a timestamp parameter (in sec

题目链接: https://leetcode.com/problems/design-tic-tac-toe/Design a Tic-tac-toe game that is played between two players on a n x n grid.You may assume the following rules:A move is guarantee

题目链接：https://leetcode.com/problems/design-twitter/Design a simplified version of Twitter where users can post tweets, follow/unfollow another user and is able to see the 10 most recent tweets in