Towers of Hanoi: Difference between revisions
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Hanoi(n, "L","M","R") ; |
Hanoi(n, "L","M","R") ; |
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}</pre> |
}</pre> |
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=={{header|Dc}}== |
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From [http://se.aminet.net/pub/OpenBSD/src/regress/usr.bin/dc/t20.in Here] |
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<pre> |
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[ # move(from, to) |
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n # print from |
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[ --> ]n # print " --> " |
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p # print to\n |
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sw # p doesn't pop, so get rid of the value |
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]sm |
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[ # init(n) |
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sw # tuck n away temporarily |
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9 # sentinel as bottom of stack |
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lw # bring n back |
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1 # "from" tower's label |
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3 # "to" tower's label |
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0 # processed marker |
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]si |
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[ # Move() |
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lt # push to |
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lf # push from |
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lmx # call move(from, to) |
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]sM |
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[ # code block <d> |
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ln # push n |
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lf # push from |
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lt # push to |
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1 # push processed marker 1 |
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ln # push n |
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1 # push 1 |
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- # n - 1 |
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lf # push from |
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ll # push left |
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0 # push processed marker 0 |
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]sd |
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[ # code block <e> |
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ln # push n |
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1 # push 1 |
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- # n - 1 |
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ll # push left |
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lt # push to |
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0 # push processed marker 0 |
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]se |
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[ # code block <x> |
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ln 1 =M |
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ln 1 !=d |
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]sx |
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[ # code block <y> |
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lMx |
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lex |
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]sy |
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[ # quit() |
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q # exit the program |
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]sq |
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[ # run() |
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d 9 =q # if stack empty, quit() |
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sp # processed |
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st # to |
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sf # from |
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sn # n |
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6 # |
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lf # |
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- # |
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lt # |
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- # 6 - from - to |
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sl # |
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lp 0 =x # |
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lp 0 !=y # |
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lrx # loop |
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]sr |
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5lix # init(n) |
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lrx # run() |
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</pre> |
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=={{header|E}}== |
=={{header|E}}== |