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