factor/extra/project-euler/010/010.factor

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Factor

! Copyright (c) 2007 Aaron Schaefer, Samuel Tardieu.
! See http://factorcode.org/license.txt for BSD license.
USING: math.primes sequences project-euler.common ;
IN: project-euler.010
! http://projecteuler.net/index.php?section=problems&id=10
! DESCRIPTION
! -----------
! The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.
! Find the sum of all the primes below two million.
! SOLUTION
! --------
: euler010 ( -- answer )
2000000 primes-upto sum ;
! [ euler010 ] 100 ave-time
! 15 ms ave run time - 0.41 SD (100 trials)
SOLUTION: euler010