- Complete the vector_iter function. Iterate through the given & mut Vec . If the word has an even number of characters, reverse the word by using the reverse_word function. If the word has an odd number of characters, count the number of vowels in the word by using count_vowels. You should return a tuple containg a Vec of the reversed words and the total number of vowels from odd lengthed words. You will need to clone the reverse word into the return Vector. - Complete the function. Reverse the given mutable String reference. This function does not return anything so you will need to directly modify the given String reference. - Complete the function. Count the number of vowels in the given \&str. In this instance, we mean the vowels a,e,i,o, and u. Do not worry about y. You will need to handle words with upper and lower case vowels. You should not modify the contents of the passed \&str. You will need to return the number of vowels as an i32