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39 lines
985 B
Python
39 lines
985 B
Python
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"""Finding the nth digit of the fractional part of the irrational number.
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An irrational decimal fraction is created by concatenating the positive integers:
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0.12345678910[1]112131415161718192021...
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It can be seen that the 12th digit of the fractional part is 1.
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If dn represents the nth digit of the fractional part, find the value of the following expression.
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d1 * d10 * d100 * d1000 * d10000 * d100000 * d1000000
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"""
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from e011 import product
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def irrational_generator():
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i = 0
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pos = 0
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data = []
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while True:
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i = i + 1
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s = str(i)
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for c in s:
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yield int(c)
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def main():
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values = []
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counter = 0
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stops = [10**n for n in range(7)]
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for i in irrational_generator():
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counter = counter + 1
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if counter in stops:
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values.append(i)
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if counter == max(stops):
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break
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print 'Values: ', values
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print 'Product: ', product(values)
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if __name__ == '__main__':
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main()
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