USE C++

(make sure your answer is simple and easy to understand)

Write a function (named 'longest letter run' that takes two constant references to strings. It shoud return an int. The first string is a piece of text, and the second string is the letters that we are looking for runs in Arun is a series of consecutive letters from the second string. Example: This call longest Jetter_fun this_is_some_text","is_ Should return a because the longest letter runis is