Introduction - If you have any usage issues, please Google them yourself
Defined and implemented a set of integers class int_set, a collection of classes cur_size indicate that the current collection there are several integers, set up to contain max_size integers and store the collection elements of the array is dynamic. Requested methods are: (1) Add a integer to set (2) remove an element from the collection (3) to determine whether an element in the collection (4) overload " " algorithm, enter the collection overloaded " " a collection of operator outputs (5), respectively to achieve cross-collection, and, poor operation.