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regex5

Language/Type: General regular expressions binary
Author: Melissa Hovik (on 2018/06/01)

Write a regular expression that will match each of the following patterns:

Binary strings starting and ending with a 0
Binary strings with the start character being different than the end character
Binary strings containing an even (possibly zero) number of 0's
Binary strings containing at least one 1 and at most two 0's

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