# cs235 # Yuxiao Wang # hw1 # question 3 ## for test list: a = [2011,2344,2000,2008,2016,1995,987,3028,4762,2018,2400] def checkYear(a): return all (1000<=x<3000 for x in a) def remove(a): if checkYear(a) == False: return [x for x in a if 1000<=x<3000] def leap(a): b = remove(a) return {x for x in b if (x%4==0 and x%100!=0) or (x%400==0)}