P$8\mathrm{.}2$ create a c$++$ program that checks the spelling of all words in a file. It should read each word of a file and check whether it is contained in a word list. A word list is available on most UNIX systems $($including Linux and Mac OS X$)$ in the file $/$usr$/$share$/$dict$/$words$.($If you don$$t have access to a UNIX system, you can find a copy of the file on the Internet by searching for $/$usr$/$share$/$dict$/$words$.)$ The program should print out all words that it cannot find in the word list. Follow this pseudocode:Open the dictionary file.Define a vector of strings called words.For each word in the dictionary file$$ Append the word to the words vector.Open the file to be checked.For each word in that file$$ If the word is not contained in the words vector$$ Print the word.