write a function in c++ that counts the number of vowels, the number of consonants and the average number of letters in each word. the function accept a C-String (char array) or a string object as an argument and return the number of vowels, number of consonants and the average number of letters in each word.

requirements: 1. use pointers as part of the solution 2. read a string from a text file 3. write in a text file the string, the number of vowels, the number of consonants and the average number of letters in each word