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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 72d218235f
commit f23f22d71c
199087 changed files with 3378941 additions and 0 deletions
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Task/Shortest-common-supersequence/Mathematica/shortest-common-supersequence.math Normal file
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ClearAll[RosettaShortestCommonSuperSequence]
RosettaShortestCommonSuperSequence[aa_String, bb_String] :=
Module[{lcs, scs, a = aa, b = bb},
lcs = LongestCommonSubsequence[aa, bb];
scs = "";
While[StringLength[lcs] > 0,
If[StringTake[a, 1] == StringTake[lcs, 1] \[And] StringTake[b, 1] == StringTake[lcs, 1],
scs = StringJoin[scs, StringTake[lcs, 1]];
lcs = StringDrop[lcs, 1];
a = StringDrop[a, 1];
b = StringDrop[b, 1];
,
If[StringTake[a, 1] == StringTake[lcs, 1],
scs = StringJoin[scs, StringTake[b, 1]];
b = StringDrop[b, 1];
,
scs = StringJoin[scs, StringTake[a, 1]];
a = StringDrop[a, 1];
]
]
];
StringJoin[scs, a, b]
]
RosettaShortestCommonSuperSequence["abcbdab", "bdcaba"]
RosettaShortestCommonSuperSequence["WEASELS", "WARDANCE"]