Question: Write a program that reads postfix notation expressions from a file (one expression per line), parses and evaluates each line, and prints the results.

Instructions:

Write a function named evaluate() that takes one argument, a string containing a postfix expression. All elements of the expression will be separated by spaces. The expression may end in a newline character, which you should remove.

Write a function named main() that takes one argument, a string containing a path to a file of postfix expressions. This function should open the file for reading, iterate over each line in the file, call the evaluate() function to evaluate each expression, and print the result of each expression in the following format: