Create a program in python with a main function and a custom module named rect that defines three custom functions about rectangles as follows: a value-returning function that takes a rectangle's dimensions as parameters and returns the perimeter. a void function that takes a rectangle's dimensions as parameters and prints the area. a value-returning function that takes a rectangle's dimensions as parameters and returns the diagonal length.

in c++

Add a function to get the CPI values from the user and validate that they are greater than 0. 1. Declare and implement a void function called getCPIValues that takes two float reference parameters for the old_cpi and new_cpi. 2. Move the code that reads in the old_cpi and new_cpi into this function. 3. Add a do-while loop that validates the input, making sure that the old_cpi and new_cpi are valid values. + if there is an input error, print "Error: CPI values must be greater than 0." and try to get data again. 4. Replace the code that was moved with a call to this new function. - Add an array to accumulate the computed inflation rates 1. Declare a constant called MAX_RATES and set it to 20. 2. Declare an array of double values having size MAX_RATES that will be used to accumulate the computed inflation rates. 3. Add code to main that inserts the computed inflation rate into the next position in the array. 4. Be careful to make sure the program does not overflow the array. - Add a…

Each function inside the class A(n)_ is a virtual function. Provide your thoughts by filling in the blanks.