Mind boggling card trick: Difference between revisions
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m (→{{header|REXX}}: reduced the number of random shuffles.) |
m (→{{header|REXX}}: fixed code to not shuffle the same card.) |
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isRed: return arg(1) // 2 /*if arg(1) is odd, the card is RED.*/ |
isRed: return arg(1) // 2 /*if arg(1) is odd, the card is RED.*/ |
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s: if arg(1)==1 then return arg(3); return word( arg(2) 's', 1) /*pluralizer.*/ |
s: if arg(1)==1 then return arg(3); return word( arg(2) 's', 1) /*pluralizer.*/ |
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/*──────────────────────────────────────────────────────────────────────────────────────*/ |
/*──────────────────────────────────────────────────────────────────────────────────────*/ |
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count: Rn=0; Bn=0; do j=1 for words(R); Rn=Rn+ isRed(word(R,j)) ; end |
count: Rn=0; Bn=0; do j=1 for words(R); Rn=Rn+ isRed(word(R,j)) ; end |
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end /*j*/ |
end /*j*/ |
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return /*discard pile not used.*/ |
return /*discard pile not used.*/ |
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/*──────────────────────────────────────────────────────────────────────────────────────*/ |
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parse value @.x @.y with @.y @.x; end /*j*/; return |
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/*──────────────────────────────────────────────────────────────────────────────────────*/ |
/*──────────────────────────────────────────────────────────────────────────────────────*/ |
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swap: $= min( words(R), words(B) ); Rc=; Bc= /*ensure we can swap $ cards.*/ |
swap: $= min( words(R), words(B) ); Rc=; Bc= /*ensure we can swap $ cards.*/ |
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