摘要：
Painter's ProblemTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 3462Accepted: 1710DescriptionThere is a square wall which is made of n*n small square bricks. Some bricks are white while some bricks are yellow. Bob is a painter and he wants to paint all the bricks yellow. But there is s 阅读全文
