import random # - ---q7.py # Write a function permutation(L) which # returns a random permutation of L by the following method: # (0) initialize an empty list P and a copy of L: C = list(L) # (1) Use random.randrange(0, len(C)) to get a random index, i # (2) remove element i from the list C using pop() and # (3) append that element to the new list P # (4) repeat steps (1-3) until all the elmeents are transferred from C to P # (5) return the new list P # 1. Try your function on the sequence range(0, 30), which isn't a list, # but it should work anyway. # 2, Do thạt again to see that you get a new permuation. # 3. Try it on [19, 4, 3, 17] two times. # 4. Try it on poly - [(0, 0), (20, 0), (20, 10), (0, 10)] (wo limes. # # Note: Although the random package has a function that will # make a random permuation of a list L: # random.sample(L, len(L)) # in this question you shouldn't use the sample() function, but # you should try it out once so you'll remember how to use it. # -

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