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54 lines
1.9 KiB
Python
54 lines
1.9 KiB
Python
#Project Euler/Python/Problem10.py
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#Matthew Ellison
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# Created: 01-30-19
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#Modified: 03-28-19
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#Find the sum of all the primes below two million
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#Unless otherwise listed, all of my non-standard imports can be gotten from my pyClasses repository at https://bitbucket.org/Mattrixwv/pyClasses
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"""
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Copyright (C) 2019 Matthew Ellison
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""
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from Stopwatch import Stopwatch
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from Algorithms import getPrimes
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__numberGreaterThanPrimes = 2000000 #Get all primes <= this number
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def Problem10():
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#Get all of the primes < 2000000
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primes = getPrimes(__numberGreaterThanPrimes - 1)
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#Get the sum of the list
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primeSum = sum(primes)
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#Print the results
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print("The sum of all the prime numbers less than " + str(__numberGreaterThanPrimes) + " is " + str(primeSum))
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#If you are running this file, automatically start the correct function
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if __name__ == "__main__":
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timer = Stopwatch() #Determines the algorithm's run time
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timer.start() #Start the timer
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Problem10() #Call the function that answers the question
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timer.stop() #Stop the timer
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#Print the results of the timer
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print("It took " + timer.getString() + " to run this algorithm")
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"""Results:
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The sum of all the prime numbers less than 2000000 is 142913828922
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It took 5.926 seconds to run this algorithm
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"""
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