kopia lustrzana https://github.com/micropython/micropython-lib
45 wiersze
781 B
Python
45 wiersze
781 B
Python
from urandom import *
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_getrandbits32 = getrandbits
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def getrandbits(bits: int) -> int:
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n = bits // 32
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d = 0
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for i in range(n):
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d |= _getrandbits32(32) << (i * 32)
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r = bits % 32
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if r >= 1:
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d |= _getrandbits32(r) << (n * 32)
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return d
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def randrange(start, stop=None):
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if stop is None:
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stop = start
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start = 0
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upper = stop - start
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bits = 0
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pwr2 = 1
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while upper > pwr2:
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pwr2 <<= 1
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bits += 1
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while True:
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r = getrandbits(bits)
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if r < upper:
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break
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return r + start
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def randint(start, stop):
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return randrange(start, stop + 1)
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def shuffle(seq):
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l = len(seq)
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for i in range(l):
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j = randrange(l)
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seq[i], seq[j] = seq[j], seq[i]
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