Interview Question for SDETs

Country: India
Interview Type: Phone Interview

Comment hidden because of low score. Click to expand.
of 0 vote

since everybody can do above, I will just write the prove :-)
prove by induction: base case ''; '(' ')'
which class of grammair: you can write a BNF production like
programm = {expression}
expression = "(" expression ")" | "(" ")"

{prodcution} means n-times, where 0<=n
2nd prove, just write a dump parser like a LL1 or recursive descent

so it's at most a context free language, question is if its a regular grammar as well (finite automata) ... it's too long, but I think a regular automata can't parse it (not to be confused with modern regular expressions...) could somebone comment on the last please.

- Chris October 19, 2016 | Flag Reply
Comment hidden because of low score. Click to expand.
of 0 vote

You are almost right Chris brackets matching are not regular.
They are (Non deterministic) Context Free at best.

And yea I give n take interviews fairly regularly.
Appeared for : 50+ , Taken : 600+. There were days where I used to take 10 interviews a day, and there are days where I used to appear for 3 full panel interview a day. It is a fun activity.

- NoOne October 20, 2016 | Flag Reply

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