Best shuffle: Difference between revisions
Content added Content deleted
m (→{{header|OCaml}}: more explicit function name) |
(→{{header|AutoHotkey}}: Introduce an inner loop to search for a good swap. Also, stop stacking multiple red boxes from wiki templates! One red box, with a specific message, is enough.) |
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=={{header|AutoHotkey}}== |
=={{header|AutoHotkey}}== |
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{{ |
{{incomplete|AutoHotkey|Finds a best shuffle, but never calculates score nor gives correct output.}} |
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{{lines_too_long|AutoHotkey}} |
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{{output?|AutoHotkey}} |
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MsgBox % Shuffle("Abracadabra") |
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MsgBox % Shuffle("elk") |
MsgBox % Shuffle("elk") |
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MsgBox % Shuffle("grrrrrr") |
MsgBox % Shuffle("grrrrrr") |
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Shuffle(String) |
Shuffle(String) |
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{ |
{ |
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Cord := String |
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Length := StrLen(String) |
Length := StrLen(String) |
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CharType := A_IsUnicode ? "UShort" : "UChar" |
CharType := A_IsUnicode ? "UShort" : "UChar" |
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Loop, Parse, String ; |
Loop, Parse, String ; For each old character in String... |
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{ |
{ |
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Char1 := SubStr(Cord, A_Index, 1) |
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Random, CharIndex, 1, Length |
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If (Char1 <> A_LoopField) ; If new character already differs, |
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NumPut(Asc(SubStr(String,CharIndex,1)),String,(A_Index - 1) << !!A_IsUnicode,CharType) ;set the character at the current position |
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Continue ; do nothing. |
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NumPut(Asc(A_LoopField),String,(CharIndex - 1) << !!A_IsUnicode,CharType) ;set the character at the random position |
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Index1 := A_Index |
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OldChar1 := A_LoopField |
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Random, Index2, 1, Length ; Starting at some random index, |
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Loop, %Length% ; for each index... |
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{ |
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If (Index1 <> Index2) ; Swap requires two different indexes. |
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{ |
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Char2 := SubStr(Cord, Index2, 1) |
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OldChar2 := SubStr(String, Index2, 1) |
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; If after the swap, the two new characters would differ from |
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; the two old characters, then do the swap. |
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If (Char1 <> OldChar2) and (Char2 <> OldChar1) |
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{ |
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; Swap Char1 and Char2 inside Cord. |
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NumPut(Asc(Char1), Cord, (Index2 - 1) << !!A_IsUnicode, CharType) |
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NumPut(Asc(Char2), Cord, (Index1 - 1) << !!A_IsUnicode, CharType) |
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Break |
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} |
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} |
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Index2 += 1 ; Get next index. |
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If (Index2 > Length) ; If after last index, |
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Index2 := 1 ; use first index. |
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} |
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} |
} |
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Return Cord |
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}</lang> |
}</lang> |
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