Merge branch 'master' of git://projects.elasticdog.com/git/factor
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Aaron Schaefer
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! Copyright (c) 2009 Aaron Schaefer. All rights reserved.
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! The contents of this file are licensed under the Simplified BSD License
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! A copy of the license is available at http://factorcode.org/license.txt
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USING: arrays formatting fry grouping io kernel locals math math.functions
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math.matrices math.parser math.primes.factors math.vectors prettyprint
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sequences sequences.deep sets ;
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IN: benchmark.pidigits
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: extract ( z x -- n )
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1 2array '[ _ v* sum ] map first2 /i ;
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: next ( z -- n )
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3 extract ;
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: safe? ( z n -- ? )
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[ 4 extract ] dip = ;
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: >matrix ( q s r t -- z )
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4array 2 group ;
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: produce ( z n -- z' )
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[ 10 ] dip -10 * 0 1 >matrix swap m. ;
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: gen-x ( x -- matrix )
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dup 2 * 1 + [ 2 * 0 ] keep >matrix ;
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: consume ( z k -- z' )
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gen-x m. ;
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:: (padded-total) ( row col -- str n format )
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"" row col + "%" "s\t:%d\n"
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10 col - number>string glue ;
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: padded-total ( row col -- )
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(padded-total) '[ _ printf ] call( str n -- ) ;
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:: (pidigits) ( k z n row col -- )
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n 0 > [
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z next :> y
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z y safe? [
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col 10 = [
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row 10 + y "\t:%d\n%d" printf
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k z y produce n 1 - row 10 + 1 (pidigits)
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] [
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y number>string write
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k z y produce n 1 - row col 1 + (pidigits)
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] if
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] [
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k 1 + z k consume n row col (pidigits)
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] if
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] [ row col padded-total ] if ;
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: pidigits ( n -- )
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[ 1 { { 1 0 } { 0 1 } } ] dip 0 0 (pidigits) ;
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: pidigits-main ( -- )
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10000 pidigits ;
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MAIN: pidigits-main
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@ -117,9 +117,6 @@ CONSTANT: VALUE_STR { "" "Straight Flush" "Four of a Kind" "Full House" "Flush"
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: lookup ( cards table -- value )
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[ rank-bits ] dip nth ;
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: unique5? ( cards -- ? )
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unique5-table lookup 0 > ;
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: map-product ( seq quot -- n )
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[ 1 ] 2dip [ dip * ] curry [ swap ] prepose each ; inline
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@ -138,11 +135,11 @@ CONSTANT: VALUE_STR { "" "Straight Flush" "Four of a Kind" "Full House" "Flush"
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bitxor values-table nth ;
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: hand-value ( cards -- value )
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{
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{ [ dup flush? ] [ flushes-table lookup ] }
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{ [ dup unique5? ] [ unique5-table lookup ] }
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[ prime-bits perfect-hash-find ]
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} cond ;
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dup flush? [ flushes-table lookup ] [
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dup unique5-table lookup dup 0 > [ nip ] [
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drop prime-bits perfect-hash-find
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] if
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] if ;
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: >card-rank ( card -- str )
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-8 shift HEX: F bitand RANK_STR nth ;
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@ -5,3 +5,4 @@ IN: project-euler.001.tests
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[ 233168 ] [ euler001a ] unit-test
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[ 233168 ] [ euler001b ] unit-test
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[ 233168 ] [ euler001c ] unit-test
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[ 233168 ] [ euler001d ] unit-test
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@ -1,6 +1,7 @@
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! Copyright (c) 2007, 2008 Aaron Schaefer, Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: kernel math math.functions math.ranges sequences project-euler.common ;
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USING: kernel math math.functions math.ranges project-euler.common sequences
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sets ;
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IN: project-euler.001
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! http://projecteuler.net/index.php?section=problems&id=1
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@ -32,7 +33,7 @@ PRIVATE>
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999 15 sum-divisible-by - ;
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! [ euler001 ] 100 ave-time
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! 0 ms run / 0 ms GC ave time - 100 trials
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! 0 ms ave run time - 0.0 SD (100 trials)
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! ALTERNATE SOLUTIONS
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0 999 3 <range> sum 0 999 5 <range> sum + 0 999 15 <range> sum - ;
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! [ euler001a ] 100 ave-time
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! 0 ms run / 0 ms GC ave time - 100 trials
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! 0 ms ave run time - 0.03 SD (100 trials)
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: euler001b ( -- answer )
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1000 [ [ 5 mod ] [ 3 mod ] bi [ 0 = ] either? ] filter sum ;
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! [ euler001b ] 100 ave-time
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! 0 ms run / 0 ms GC ave time - 100 trials
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! 0 ms ave run time - 0.06 SD (100 trials)
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: euler001c ( -- answer )
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! [ euler001c ] 100 ave-time
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! 0 ms ave run time - 0.06 SD (100 trials)
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: euler001d ( -- answer )
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{ 3 5 } [ [ 999 ] keep <range> ] gather sum ;
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! [ euler001d ] 100 ave-time
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! 0 ms ave run time - 0.08 SD (100 trials)
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SOLUTION: euler001
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@ -69,12 +69,9 @@ PRIVATE>
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[ nth-prime primes-upto ]
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} cond product ;
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: (primorial-upto) ( count limit -- m )
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'[ dup primorial _ <= ] [ 1+ dup primorial ] produce
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nip penultimate ;
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: primorial-upto ( limit -- m )
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1 swap (primorial-upto) ;
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1 swap '[ dup primorial _ <= ] [ 1+ dup primorial ] produce
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nip penultimate ;
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PRIVATE>
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