Assume you are an awesome parent and want to give your children some cookies. but, you should give each child at most one cookie. each child i has a greed factor gi, which is the minimum size of a cookie that the child will be content with; and each cookie j has a size sj. if sj > = gi, we can assign the cookie j to the child i, and the child i will be content. your goal is to maximize the number of your content children and output the maximum number.