10 lines
210 B
Python
10 lines
210 B
Python
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from __future__ import print_function
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import random
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def pick_random_elements(xs, n):
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for i in range(min(n, len(xs))):
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i1 = random.randrange(i, len(xs))
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yield xs[i1]
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xs[i1] = xs[i]
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