ssf_cxdm的博客

1030 Travel PlanA traveler’s map gives the distances between cities along the highways, together with the cost of each highway. Now you are supposed to write a program to help a traveler to decide th...

1018 Public Bike ManagementThere is a public bike service in Hangzhou City which provides great convenience to the tourists from all over the world. One may rent a bike at any station and return it t...

1053 Path of Equal Weight题目链接Given a non-empty tree with root R, and with weight W​i​​ assigned to each tree node T​i​​ . The weight of a path from R to L is defined to be the sum of the weights ...

1087 All Roads Lead to RomeIndeed there are many different tourist routes from our city to Rome. You are supposed to find your clients the route with the least cost while gaining the most happiness....