as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
what kind of data structure can be used to store the number of times a word appears in a document?
user
a hash map or dictionary can be used to store the frequency of a word in a document. the key would be the word, and the value would be the number of times it appears.
assistant