Oh, no! You have accidentally removed all spaces, punctuation, and capitalization in a lengthy document. A sentence like "I reset the computer.
It still didn’t boot!" became "iresetthecomputeritstilldidntboot".
You'll deal with the punctuation and capitalization later; right now you need to re-insert the spaces.
Most of the words are in a dictionary but a few are not.
Given a dictionary (a list of strings) and the document (a string),
design an algorithm to unconcatenate the document in a way that
minimizes the number of unrecognized characters.
Output: jess looked just like tim her brother (7 unrecognized characters)