ShaneDelmore

  //If we have a list with at least two elements sum them and add them to the rest of the list
  //else return the head of the list
  @tailrec
  def sum(xs: List[Int]): Int = xs match {
    case h :: i :: rest => sum(h + i :: rest) //we have a list with at least two elements
    case _ => xs.head
  }
  
  //If we have a list with at least two elements, remove the smallest and recurse
  //else return the head of the list/We have

sidharthkuruvila

/**
 * Takes a camel cased identifier name and returns an underscore separated
 * name
 *
 * Example:
 *     camelToUnderscores("thisIsA1Test") == "this_is_a_1_test"
 */
def camelToUnderscores(name: String) = "[A-Z\\d]".r.replaceAllIn(name, {m =>
  "_" + m.group(0).toLowerCase()
})