You are given a positive integer n, representing an n x n city. You are also given a 2D grid buildings, where buildings[i] = [x, y] denotes a unique building located at coordinates [x, y]. A building is covered if there is at least one building in all four…

给你三个长度为 n 的数组，分别描述 n 个优惠券的属性：code、businessLine 和 isActive。其中，第 i 个优惠券具有以下属性：

You are given three arrays of length n that describe the properties of n coupons: code, businessLine, and isActive. The ith coupon has: