正文内容加载中...
摘要：
Problem Statement Design a food rating system that can do the following: Modify the rating of a food item listed in the system. Return the highest-rat 阅读全文
摘要：
Problem Statement There is a street with n * 2 plots, where there are n plots on each side of the street. The plots on each side are numbered from 1 t 阅读全文
摘要：
Problem Statement You are given a 0-indexed m x n integer matrix grid consisting of distinct integers from 0 to m * n - 1. You can move in this matrix 阅读全文
摘要：
Problem Statement Given an array nums, return true if the array was originally sorted in non-decreasing order, then rotated some number of positions ( 阅读全文
摘要：
Problem Statement Given two numbers, hour and minutes. Return the smaller angle (in degrees) formed between the hour and the minute hand. Example 1: I 阅读全文
摘要：
Problem Statement Given an array of integers nums. A pair (i,j) is called good if nums[i] == nums[j] and i < j. Return the number of good pairs. Examp 阅读全文
摘要：
Methodology: READ MF! [Originally from the Post: System design interview: how to design a chat system (e.g., Facebook Messenger, WeChat or WhatsApp)] 阅读全文
摘要：
Problem Statement You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed. All houses at 阅读全文
摘要：
Problem Statement You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only cons 阅读全文
摘要：
Problem Statement Given a 2d grid map of '1's (land) and '0's (water), count the number of islands. An island is surrounded by water and is formed by 阅读全文