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Python coding challenges on strings

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Split a string into a list

Beginner strings
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Reverse characters in a string

Beginner loopsstrings
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Validate an email addresses

Intermediate regexstrings
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Extract phone numbers from a string

Intermediate regexstrings
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Find unique elements in a given list

Intermediate setsstrings
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Count the frequency of words in a file

Intermediate filesstrings
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Check for balanced parentheses, brackets, and braces

Advanced strings
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Extract email addresses

Advanced regexstrings
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Validate a password

Advanced regexstrings

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