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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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Regular expression for floating point numbers
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12 Answers
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How to add an empty column to a dataframe?
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11 Answers
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Generate random int value from 3 to 6
...crosoft SQL Server generate random int value from Min to Max (3-9 example, 15-99 e.t.c)
10 Answers
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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...
Custom Python list sorting
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edited Feb 5 '15 at 17:33
Charlie
6,5234545 silver badges5050 bronze badges
answered Aug 7 '...
Select by partial string from a pandas DataFrame
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MySQL foreign key constraints, cascade delete
...-----+
| id | name | | id | name |
+----+------+ +----+---------+
| 1 | red | | 1 | mittens |
| 2 | blue | | 2 | boots |
+---++------+ +----+---------+
products_categories:
+------------+-------------+
| product_id | category_id |
+------------+-------------+
| 1 | 1 ...