Question: GPS 2 . 9 . Final Expression Recall that matches all binary strings by describing alternating blocks of 0 s and 1 s . Modify

GPS2.9. Final Expression
Recall that
matches all binary strings by describing alternating blocks of 0s and 1s. Modify this regular expression to only match binary strings not containing 000.
Hint: replace the subexpression representing "unrestricted 0-runs" with a more restrictive expression that enforces the desired constraint on the length of 0-runs.

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