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Hi everyone,
This is my submission for the problem 1385D — a-Good String 87129805 . If I make the input string global and if I do not pass it inside the function every-time it gets accepted. I don't understand why it times out though?. Wouldn't the solution still be O(17.n)?. Thank you for your help.
You're passing a copy of the string each time you recurse. Just make it global or pass as reference.