I attached all the requirements about this.Detail explanation about explanation is on either pdf or comments.Ask me anything if there is something confusing.Step 1:Fill in WordSet.cpp○ Your implementation must be done via a hash table, as described in lecture.○ Your collision resolution policy must be quadratic probing.○ You must use a dynamically-allocated array, not a std::vector or similar container, as the basis in your WordSet.○ Your implementation must fit the interface given○ Your implementation does not need to be templated -- nor should it be, for the purposes of this assignment. ■ In fact, doing so will cause an issue for some of our provided tests.○ You do need to implement the destructor.○ Do not hard code your table for the uses we’ll have in the next section.○ You must also fill in the desired hash function: treating words as numeric types. ■ Be careful about when you take the modulus within the hash function. ■ Be careful about when you take the modulus outside the hash function.Step 2:Write function std::string convert(std::string s1, std::string s2, const WordSet & words) in proj3.cpp○ This function will return the conversion between s1 and s2, according to the lowest Lewis Carroll distance. Separate consecutive words with [space]-->[space]. If there are two or more equally least Lewis Carroll distance ways to convert between the two words, you may return any of them.○ It is recommended that you compute the distance via a breadth-first search. To visualize this, imagine a graph where the words are vertices and two vertices share an (undirected) edge if they are one letter apart.○ A good thing to do the first time you see a word in the previous part is to place it into a map, where the key is the word you just saw and the value is the word that you saw immediately before it. This will allow you to later produce the path: you know the last word, and you know the prior word for each word in the path except the first. Furthermore, if the key isn’t in that map, this tells you that you haven’t seen it before.○ Your implementation does not have to be the most efficient thing ever, but it cannot be “too slow.” In general, any test case that takes over a minute on the grader’s computer may be deemed a wrong answer, even if it will later return a correct one.