Hello! About problem set 6, problem #3. I dont actually understand how can I increase perfomance of "is_valid_word" function after implementing "get_words_to_points" function?

Question

anonymous · Answer

This problem assumes your original implementation of is_valid_word searched the word list to see if the word was in there.  Problem 3 asks you to look for the word in the points dictionary instead.
Searching dictionary keys is faster than searching for items in a list - I think there is an explanation of this is one of the lectures

anonymous · Answer

ah. ok, thanks