adii1823
17 lines
349 B
Python
17 lines
349 B
Python
# fibonacci.second.py
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def fibonacci(N):
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"""Return all fibonacci numbers up to N. """
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yield 0
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if N == 0:
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return
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a = 0
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b = 1
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while b <= N:
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yield b
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a, b = b, a + b
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print(list(fibonacci(0))) # [0]
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print(list(fibonacci(1))) # [0, 1, 1]
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print(list(fibonacci(50))) # [0, 1, 1, 2, 3, 5, 8, 13, 21, 34]
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