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fileNaming
You are given an array of desired filenames in the order of their creation. Since…
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questionCorrection
A system of Online Q&A needs user's questions to be standardized. A standardized question must…
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removeDuplicateCharacters
Remove all characters from a given string that appear more than once in it. Example…
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alphanumericLess
An alphanumeric ordering of strings is defined as follows: each string is considered as a sequence of…
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reverseInParentheses
Write a function that reverses characters in (possibly nested) parentheses in the input string. Input…
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isIPv4Address
IPv4 address is a string with the following structure: a.b.c.d, where a, b, c and dare integers in range [0, 255]. For…
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messageFromBinaryCode
You are taking part in an Escape Room challenge designed specifically for programmers. In your…
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cipher26
You've intercepted an encrypted message, and you are really curious about its contents. You were…
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higherVersion
Given two version strings composed of several non-negative decimal fields separated by periods ("."), both…
