热身之开关灯 Time Limit: 1000 ms Case Time Limit: 1000 ms Memory Limit: 64 MB Total Submission: 276 Submission Accepted: 103 Description 吃完草莓以后,机房的小伙伴们要开始做些运动.在ACM实验室里有N盏灯编号为1到N,起初都是开着的,从第一盏灯开始,凡是编号是一的倍数的灯的开关都要被按一遍(亮的变成暗的,暗的变成亮的), 然后到第二盏灯,凡是编号是二的倍数的灯的开关都要被…
Range Search (kD Tree) The range search problem consists of a set of attributed records S to determine which records from Sintersect with a given range. For n points on a plane, report a set of points which are within in a given range. Note that you…