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Programming Language Principle And Paradigm Assignment Help
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Frequently Asked Questions
Q. 1) Write a function that removes duplicates in a list of strings. ' ("a", "b", "a", "b", "a", "b", "c") should return ' ("a", "b", "c").
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Q. 2) Design a Ruby class SaleItem that represents an item in a customer's purchase. The class should track item ID, item name, price, number of items bought, and total price. Implement the Comparable module so the items can be sorted first by number of items purchased, then by total cost, and last by item name.
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Q. 3) Write a function that removes duplicates from a list of integers. Given the list [1, 2, 2, 3, 1, 4, 5], the function should return [1, 2, 3, 4, 5].
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Q. 4) Write a function that removes duplicate words in a sentence. For the sentence "hello hello world world", the output should be "hello world".
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Q. 5) Write a Python function that removes duplicates from a list of mixed data types (strings, integers, and floats). For example, given [3, "apple", 3.14, "apple", 3], the result should be [3, "apple", 3.14].
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Q. 6) Write a Ruby class Purchase Item that models an item purchased by a customer, including fields for item id, name, price, quantity, and the total cost of the item. Implement the Comparable module to allow sorting based on the quantity first, followed by total cost, and finally by the name alphabetically.
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Q. 7) Design a function that removes duplicate names from a list of full names (first and last names). For example, given ["John Doe", "Jane Smith", "John Doe"], the result should be ["John Doe", "Jane Smith"].
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Q. 8) Implement a tail-recursive function in Haskell that calculates the nth Fibonacci number, assuming the first two numbers in the Fibonacci sequence are 0 and 1.
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Q. 9) ment a tail-recursive function in Java that calculates the nth Fibonacci number, assuming the base cases are 0 and 1.
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Q. 10) Implement a recursive function that takes an array of numbers and returns a new array with elements in reverse order. Example: [7, 8, 9, 10] should return [10, 9, 8, 7].
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Q. 11) Write a recursive function that accepts an array of integers and returns the array with elements in reverse order without using built-in reverse functions. Example: [3, 5, 8, 2] should return [2, 8, 5, 3].
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Q. 12) Design a recursive function that reverses the order of an array containing mixed data types (integer, string, etc.). Example: [1, "a", 3.5] should return [3.5, "a", 1].
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Q. 13) Write a tail-recursive function that returns the nth number in the Fibonacci series, assuming the first two numbers are 0, 1.
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