Longest palindromic substrings: Difference between revisions
Content added Content deleted
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the given string, tupled with the |
the given string, tupled with the |
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maximal length. |
maximal length. |
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Non |
Non-alphanumerics are included here. |
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''' |
''' |
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k = s.lower() |
k = s.lower() |
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] if palindromes else list(s), |
] if palindromes else list(s), |
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maxLength |
maxLength |
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) |
) if s else ([], 0) |
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iEnd = len(s) - 1 |
iEnd = len(s) - 1 |
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def |
def limit(ij): |
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i, j = ij |
i, j = ij |
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return 0 == i or iEnd == j or s[i-1] != s[j+1] |
return 0 == i or iEnd == j or s[i-1] != s[j+1] |
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def go(ij): |
def go(ij): |
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ab = until( |
ab = until(limit)(expansion)(ij) |
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return s[ab[0]:ab[1] + 1] |
return s[ab[0]:ab[1] + 1] |
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return go |
return go |
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'abracadabra', |
'abracadabra', |
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'drome', |
'drome', |
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'abbatial palace' |
'the abbatial palace', |
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'' |
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]) |
]) |
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) |
) |
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'abracadabra' -> (['aca', 'ada'], 3) |
'abracadabra' -> (['aca', 'ada'], 3) |
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'drome' -> (['d', 'r', 'o', 'm', 'e'], 1) |
'drome' -> (['d', 'r', 'o', 'm', 'e'], 1) |
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'the abbatial palace' -> (['abba'], 4) |
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'' -> ([], 0)</pre> |
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=={{header|Raku}}== |
=={{header|Raku}}== |
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