RosettaCodeData/Task/Long-multiplication/APL/long-multiplication-1.apl at remove-colons - aparler/RosettaCodeData - Forgejo: Beyond coding. We Forge.

aparler/RosettaCodeData

Ingy döt Net f23f22d71c Initial data commit

2023-07-01 13:44:08 -04:00

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 longmul←{⎕IO←0
     sz←⌈/≢¨x y←↓⌽↑⌽¨⍺⍵
     ds←+⌿↑(⌽⍳sz)⌽¨↓(¯2×sz)↑[1]x∘.×y
     mlt←{(1⌽⌊⍵÷10)+10|⍵}⍣≡⊢ds
 =≢mlt←(∨\0≠mlt)/mlt:,0
     mlt
 }