2 lines
68 B
APL
2 lines
68 B
APL
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ack←{0=⍺:1+⍵ ⋄ 0=⍵:(⍺-1)∇1 ⋄ (⍺-1)∇⍺∇⍵-1}
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ack←{0=⍺:1+⍵ ⋄ 0=⍵:(⍺-1)∇1 ⋄ (⍺-1)∇⍺∇⍵-1}
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