摘要:
题目描述 Allen dreams of one day owning a enormous fleet of electric cars, the car of the future! He knows that this will give him a big status boost. As 阅读全文
摘要:
题目描述 You are given n n n points on Cartesian plane. Every point is a lattice point (i. e. both of its coordinates are integers), and all points are di 阅读全文