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Problem2.py
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Problem2.py
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#ProjectEuler/Python/Problem2.py
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#Matthew Ellison
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# Created: 01-26-19
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#Modified: 03-28-19
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#The sum of the even Fibonacci numbers less than 4,000,000
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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 getAllFib
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__topNumber = 4000000
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def Problem2():
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#Setup your variables
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fibSum = 0 #Holds the sum of the Fibonacci numbers
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fibNums = [] #An array that holds the Fibonacci numbers
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#Get all of the fibonacci numbers
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fibNums = getAllFib(__topNumber - 1) #Send it - 1 because it is < __topNumber
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#Determine if each number is odd or even
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for num in fibNums:
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#If it is even add it to the running sum
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if((num % 2) == 0):
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fibSum += num
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#Print the results
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print("The sum of all even Fibonacci numbers less than " + str(__topNumber) + " is " + str(fibSum))
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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() #Use to determine the algorithm's run time
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timer.start() #Start the timer
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Problem2() #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 even Fibonacci numbers less than 4000000 is 4613732
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It took 27.621 microseconds to run this algorithm
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"""
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