08 2020 档案

摘要：题目如下： Implement the class SubrectangleQueries which receives a rows x cols rectangle as a matrix of integers in the constructor and supports two metho 阅读全文

摘要：题目如下： Given the array prices where prices[i] is the price of the ith item in a shop. There is a special discount for items in the shop, if you buy the 阅读全文

摘要：题目如下： Given the array favoriteCompanies where favoriteCompanies[i] is the list of favorites companies for the ith person (indexed from 0). Return the 阅读全文

摘要：题目如下： Given an array of numbers arr. A sequence of numbers is called an arithmetic progression if the difference between any two consecutive elements 阅读全文