1. Create an array of running totals of reviews for each user. (- 2. Create an array of the number of reviews for each user. 3. Read from the input file into the arrays until there are no more reviews to read. 4. Verify that the provided user ID is between 1 and 20. Skip any that are outside this range. 5. Verify that the song rating is between 0 and 100 (inclusive) and skip any rating that is outside that range. (. 6. When the entire file has been read in, display the average rating per user, one per line, with the user ID in a 4-character field and the floating-point average in an 8- character field and two decimal points of precision.

1. Create an array of running totals of reviews for each user. (- 2. Create an array of the number of reviews for each user. 3. Read from the input file into the arrays until there are no more reviews to read. 4. Verify that the provided user ID is between 1 and 20. Skip any that are outside this range. 5. Verify that the song rating is between 0 and 100 (inclusive) and skip any rating that is outside that range. (. 6. When the entire file has been read in, display the average rating per user, one per line, with the user ID in a 4-character field and the floating-point average in an 8- character field and two decimal points of precision.

The "-t" flag to "ls" sorts the listing by modification time. Write a BASH line which will write the name of file with the oldest modification time into a file called "lastfile".

File names: color_square.py, chessboard.py, test_squares.py Positions on a chess board are identified by a letter and a number. The letter identifies the column; the number identifies the row. See the image below.   You will provide the functions that allow us to determine: if a chessboard square is either black or white, given its coordinates. If the row/column is valid or not for the standard chessboard For example, if we pass in “d” for the column and 4 for the row, your function that determines color should return the string: “BLACK”. If we pass  in "k" for the column to your function that validates columns, that function should return the boolean False. Requirements: Your function for validating the column should be able to accept upper or lowercase strings as parameters. Your functions for validating the row should be able to accept integers or strings as parameters. Your function that determines black-or-white may assume that the input has been validated prior to us calling…