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eungju/min_sum.factor

Last active August 29, 2015 14:10
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Minimum sum of two numbers
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min_sum.factor
natural-sort [ zero? ] partition dup length 2 < [ 2drop -1 ] [ 2 cut swapd 3append zip-index [ second even? ] partition [ keys 0 [ swap 10 * + ] reduce ] bi@ + ] if
natural-sort [ zero? ] partition dup length 2 < [ 2drop -1 ] [ 2 cut surround zip-index [ second even? ] partition [ keys 0 [ swap 10 * + ] reduce ] bi@ + ] if
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