Write a c++ program to do the following: Reads in and prints a text, line by line, and calls a series of functions. The main program calls a function : diffwords() to count the number of different words in the entire text (ignoring case). wordcount() to count the number of times each word appears in the text. printcount() to print a list of all the words in the text, together with the count of the number of times they appear. For example, if a word occurs twice in the text, it appears only once on the list, with a count of 2. Print the list of words in alphabetical order. Use other functions wherever appropriate. For example, suppose the text is this: The elephant ate the banana and the giraffe ate the banana. The function diffwords() produces a count of 6 ("the", "elephant", "ate", "banana", and "giraffe"); wordcount() produces this list: and 1 ate 2 banana 2 elephant 1 giraffe 1 the 4 Note: No Globle Variables