Hunter的博客

                                                      Color the ball                                                                      Time Limit: 9000/3000 MS (Java/Others)    Memory Limit: 32

Description There is an apple tree outside of kaka's house. Every autumn, a lot of apples will grow in the tree. Kaka likes apple very much, so he has been carefully nurturing the big apple tre

Stars Description Astronomers often examine star maps where stars are represented by points on a plane and each star has Cartesian coordinates. Let the level of a star be an amount of the stars that