Task «Multi-level access verification system with interfaces»

Implement a resource access checking system using interfaces. Define an AccessChecker interface with methods CheckAccess(resource string, user string) bool and GetPermissions(resource string) []string. Implement three structures: AdminAccess (always returns true and a list of all permissions containing 'admin'), UserAccess (checks if the user is in the list of allowed users for the resource and returns permissions starting with 'user_'), GuestAccess (checks if the resource is in the list of public resources and returns the 'read' permission if accessible). Then implement a function CreateAccessChecker(accessType string, config map[string]interface{}) (AccessChecker, error), which creates the corresponding object based on the accessType string ('admin', 'user', 'guest') and configuration. Input: first an integer N (1..100) — the number of requests. Then N lines of the form: accessType resource user. After that, a line with configuration: for admin — an empty string; for user — a string of the form 'resource1:user1,user2;resource2:user3'; for guest — a string of the form 'resource1;resource2'. For each request, output 'allowed' or 'denied'. If the accessType is unknown, output 'unknown type'.

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