define a function in python which takes a dictionary and a number as arguments. It should search through dictionary's values and return true if that number appears in the dictionary as an integer or as a string. Take the dictionary and the number as inputs from the user.

Question

Accepted Answer

```python # define a function named find_number_in_dict def find_number_in_dict(dictionary, number): # convert the number to both integer and string for comparison num_int = int(number) num_str = str(number) # iterate through the dictionary values for value in dictionary.values(): # check if the value is the number as an integer or string if value == num_int or value == num_str: return True # if the number is not found, return False return False ``` ```python # main function that tests find_number_in_dict def main(): # test the find_number_in_dict function # use case 1: number is present as an integer assert find_number_in_dict({'a': 1, 'b': '2', 'c': 3}, 3) == True # use case 2: number is present as a string assert find_number_in_dict({'a': 1, 'b': '2', 'c': 3}, '2') == True # use case 3: number is not present assert find_number_in_dict({'a': 1, 'b': '2', 'c': 3}, 4) == False # call the main function to run the tests if __name__ == "__main__": main() ``` ∻Explanation∻ ⚹The function `find_number_in_dict` checks if a given number is present in the values of a dictionary either as an integer or as a string. The main function `main` tests this function with different use cases to ensure it works correctly.⚹ ∻Step-by-step Instruction∻ ‖ ▪ ⋮ Define the function `find_number_in_dict` that takes a dictionary and a number as arguments. ‖ ‖ ▪ ⋮ Convert the number to both integer and string for comparison purposes. ‖ ‖ ▪ ⋮ Iterate through the dictionary's values and compare each value to the number in both its integer and string forms. ‖ ‖ ▪ ⋮ Return `True` if a match is found; otherwise, return `False` after the loop completes. ‖ ‖ ▪ ⋮ Define the main function `main` to test the `find_number_in_dict` function with different use cases. ‖ ‖ ▪ ⋮ Use `assert` statements to verify that the function returns the correct boolean value for each test case. ‖ ‖ ▪ ⋮ Call the main function if the script is the main program being run. ‖ ∻Time Complexity∻ ⚹The time complexity is O(n) where n is the number of values in the dictionary, as it requires iterating through all values once.⚹ ∻Space Complexity∻ ⚹The space complexity is O(1) as the space used does not grow with the size of the input dictionary.⚹

Sia