27 lines
527 B
Python
27 lines
527 B
Python
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from lib_misc import factorial
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def is_curious(n):
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s = sum([factorial(int(d)) for d in str(n)])
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return n == s
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def is_curious_faster(n):
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""" Potentially faster solution. """
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s = 0
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for d in str(n):
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s += factorial(int(d))
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if s > n:
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return False
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return n == s
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def euler_034():
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return sum([n for n in range(3, 10**5) if is_curious(n)])
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if __name__ == "__main__":
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assert(is_curious(145))
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print("e034.py: {}".format(euler_034()))
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assert(euler_034() == 40730)
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