Write a C$++$ program Write the definition of function countWord$()$ to count the number of words in a line. The input to countWord$()$ is a string object. It returns an integer that holds the count of the words in the input string. The prototype of countWord$()$ is given as follows.

int countWord$($string line$)$;

For example, if line is "Better three hours too soon than a minute too late." than the countWord$()$ should return $10.$