import random def shuffle(ary): a=len(ary) b=a-1 for d in range(b,0,-1): e=random.randint(0,d) if e == d: continue ary[d],ary[e]=ary[e],ary[d] return ary
import random def shuffle(ary): a=len(ary) b=a-1 for d in range(b,0,-1): e=random.randint(0,d) if e == d: continue ary[d],ary[e]=ary[e],ary[d] return ary