@@ -0,0 +1,224 @@
+package com.google.sps;%0A%0Aimport java.util.Collection;%0Aimport com.google.sps.data.Schedule;%0A%0Apublic final class Rank %7B%0A  public Collection%3CSchedule%3E sortSchedules(Collection%3CSchedule%3E schedules)%7B%0A      %0A    return null;%0A  %7D%0A%7D

Add Rank class (Will sort list of schedules by preferences)