Towers of Hanoi: Difference between revisions
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m (→{{header|AppleScript}}: (normalised argument order of map to map :: (a -> b) -> [a] -> [b] )) |
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} |
} |
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move(4, "A", "B", "C");</lang> |
move(4, "A", "B", "C");</lang> |
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Or, as a functional expression, rather than a statement with side effects: |
Or, as a functional expression, rather than a statement with side effects: |
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<lang JavaScript>(function () { |
<lang JavaScript>(function () { |
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// n -> s -> s -> s -> [[s, s]] |
// hanoi :: n -> s -> s -> s -> [[s, s]] |
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function hanoi(n, a, b, c) { |
function hanoi(n, a, b, c) { |
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return n ? hanoi(n - 1, a, c, b).concat( |
return n ? hanoi(n - 1, a, c, b).concat( |
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| Line 1,725: | Line 1,726: | ||
).concat(hanoi(n - 1, c, b, a)) : []; |
).concat(hanoi(n - 1, c, b, a)) : []; |
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} |
} |
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return hanoi(3, 'left', 'right', 'mid') |
return hanoi(3, 'left', 'right', 'mid') |
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.map(function (d) { |
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return d[0] + ' -> ' + d[1]; |
return d[0] + ' -> ' + d[1]; |
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}); |
}); |
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})();</lang> |
})();</lang> |
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