51 lines
2.1 KiB
Factor
51 lines
2.1 KiB
Factor
! Copyright (c) 2007, 2008 Aaron Schaefer, Samuel Tardieu.
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! See http://factorcode.org/license.txt for BSD license.
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USING: definitions io io.files kernel math math.parser project-euler.ave-time
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sequences vocabs vocabs.loader
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project-euler.001 project-euler.002 project-euler.003 project-euler.004
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project-euler.005 project-euler.006 project-euler.007 project-euler.008
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project-euler.009 project-euler.010 project-euler.011 project-euler.012
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project-euler.013 project-euler.014 project-euler.015 project-euler.016
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project-euler.017 project-euler.018 project-euler.019 project-euler.020
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project-euler.021 project-euler.022 project-euler.023 project-euler.024
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project-euler.025 project-euler.026 project-euler.027 project-euler.028
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project-euler.029 project-euler.030 project-euler.031 project-euler.032
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project-euler.033 project-euler.034 project-euler.035 project-euler.036
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project-euler.037 project-euler.038 project-euler.039 project-euler.040
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project-euler.041 project-euler.042 project-euler.043 project-euler.044
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project-euler.045 project-euler.046 project-euler.047 project-euler.048
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project-euler.052 project-euler.053 project-euler.056 project-euler.059
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project-euler.067 project-euler.075 project-euler.079 project-euler.092
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project-euler.097 project-euler.134 project-euler.169 project-euler.173
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project-euler.175 combinators.short-circuit ;
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IN: project-euler
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<PRIVATE
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: problem-prompt ( -- n )
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"Which problem number from Project Euler would you like to solve?"
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print readln string>number ;
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: number>euler ( n -- str )
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number>string 3 CHAR: 0 pad-left ;
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: solution-path ( n -- str/f )
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number>euler "project-euler." prepend
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vocab where dup [ first ] when ;
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PRIVATE>
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: problem-solved? ( n -- ? )
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solution-path ;
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: run-project-euler ( -- )
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problem-prompt dup problem-solved? [
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dup number>euler "project-euler." prepend run
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"Answer: " swap dup number? [ number>string ] when append print
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"Source: " swap solution-path append print
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] [
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drop "That problem has not been solved yet..." print
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] if ;
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MAIN: run-project-euler
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