__author__ = 'liunnis' #-*-coding:utf-8 -*- a=[1,2,3,4,4] print a print list(set(a)) b=[str(i) for i in a] print list(set(b)) #the result is # [1, 2, 3, 4, 4] # [1, 2, 3, 4] # ['1', '3', '2', '4'] c=[[1,2],[3,4],[5,5],[6,6],[7,8],[9,0],10,[11]] print…