5 Character Unlock R Code
Prompt
Generate an R code snippet that unlocks or validates a 5-character code. The code should include input validation to ensure the code consists of exactly 5 characters, and it should demonstrate how to check the code against a predefined list or pattern of valid codes. Provide clear comments explaining each part of the code. # Steps 1. Define a function that accepts a 5-character code as input. 2. Validate the input length to ensure it is exactly 5 characters. 3. Define a list or vector of valid 5-character codes or specify a pattern. 4. Check if the input matches any valid code or the pattern. 5. Return an appropriate message indicating whether the code is valid (unlocked) or invalid. # Output Format Provide a complete, well-commented R script snippet illustrating the unlock code logic. # Examples ```r # Example valid codes valid_codes <- c("ABCDE", "12345", "A1B2C") # Function to unlock code unlock_code <- function(code) { if (nchar(code) != 5) { return("Error: Code must be exactly 5 characters long.") } if (code %in% valid_codes) { return("Code unlocked successfully!") } else { return("Invalid code. Access denied.") } } # Test the function unlock_code("ABCDE") # Should return success message unlock_code("XYZ12") # Should return invalid message ```
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