Chapter 12, Problem 19PC

String Splitter

Write a function vector<string> split (string str) that takes a string as parameter and returns a vector of the distinct words in the string. A distinct word is any run of characters delimited by the beginning of the string, the end of the string, or whitespace. A consecutive run of whitespace characters is to be treated the same as a single whitespace character. Test your program by having the user enter lines of input, reading and splitting the line into words, and printing the words in the returned vector with each word on its own line. For example, the input

Every    good boy    does fine,

results in the output

Every

good

boy

does

fine.