摘要：
题目描述Jim is boss of a big company . There are so many workers in his company that it will take a long time for his command send to all of his workers .... 阅读全文
摘要：
题目描述There is a grid size of 1*N. The spanning tree of the grid connects all the vertices of the grid only with the edges of the grid, and every vertex... 阅读全文
摘要：
Problem DescriptionEddy begins to like painting pictures recently ,he is sure of himself to become a painter.Every day Eddy draws pictures in his smal... 阅读全文