Randomly shuffle elements of an array
Python, 11 lines
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Copy to clipboard1 2 3 4 5 6 7 8 9 10 11 | 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
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Tags: algorithms
How is this different from the shuffle function in the random module?
http://www.python.org/doc/2.4/lib/module-random.html