22 lines
292 B
Python
22 lines
292 B
Python
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def fib():
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a, b = 0, 1
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while True:
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a, b = b, a + b
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yield a
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def even(gen):
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for val in gen:
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if val % 2 == 0:
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yield val
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def main():
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gen = even(fib())
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for _ in range(10):
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print(next(gen))
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if __name__ == '__main__':
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main()
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