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Interview question: Check if one string is a rotation of other string [closed]
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First make sure s1 and s2 are of the same length. Then check to see if s2 is a substring of s1 concatenated with s1:
algorithm checkRotation(string s1, string s2)
if( len(s1) != len(s2))
return false
if( substring(s2,concat(s1,s1))
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How do I clone a subdirectory only of a Git repository?
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18 Answers
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What does “hashable” mean in Python?
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From the Python glossary:
An object is hashable if it has a hash value which never changes...
Regular expression for floating point numbers
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How do I revert master branch to a tag in git?
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160
You can do
git checkout master
git reset --hard tag_ABC
git push --force origin master
Plea...
What is :: (double colon) in Python when subscripting sequences?
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10 Answers
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Javascript equivalent of Python's zip function
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Custom Python list sorting
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edited Feb 5 '15 at 17:33
Charlie
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answered Aug 7 '...