27 lines
638 B
Python
27 lines
638 B
Python
######################################################################
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# Each new term in the Fibonacci sequence is generated by adding the
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# previous two terms. By starting with 1 and 2, the first 10 terms will be:
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#
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# 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...
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#
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# By considering the terms in the Fibonacci sequence whose values do
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# not exceed four million, find the sum of the even-valued terms.
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#
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#######################################################################
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a = 0
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b = 1
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c = 0
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sum = 0
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while a + b <= 4000000:
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c = a + b
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a = b
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b = c
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if c % 2 is 0:
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sum += c
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print("{}".format(sum))
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# Solution: 4613732
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