摘要：
Oleg the client and Igor the analyst are good friends. However, sometimes they argue over little things. Recently, they started a new company, but the 阅读全文
摘要：
You are given two rectangles on a plane. The centers of both rectangles are located in the origin of coordinates (meaning the center of the rectangle' 阅读全文
摘要：
Bike loves looking for the second maximum element in the sequence. The second maximum element in the sequence of distinct numbers x1, x2, ..., xk (k 1 阅读全文