Question: Consider the problem of determining if a string is an integer in the following format: an optional minus sign followed by at least one digit.

Consider the problem of determining if a string is an integer in the following format: an
optional minus sign followed by at least one digit. Design a DFA for this problem.
Consider the problem of determining if a string is a number in the following format: an
optional minus sign followed by at least one digit, or an optional minus sign followed
by any number of digits, a decimal point and at least one digit. Design a DFA for this
problem.
Consider the problem of determining if a string is an integer

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