1. Find the difference between min and max elements in an integer array
2. Design a system with tree structure, which has directories and files, a directory can have other directories or files, both of them have attributes name, file size, writable.

Question

1. Find the difference between min and max elements in an integer array
2. Design a system with tree structure, which has directories and files, a directory can have other directories or files, both of them have attributes name, file size, writable.

Anonym · Accepted Answer

1. Iteration and get min and max, then get difference.
2. Object-oriented design, inheritance, shared attributes and action.

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