Can anybody provide me a hint for this problem. I am not able to get what the dp states should be.
Thanks in advance.
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Can anybody provide me a hint for this problem. I am not able to get what the dp states should be.
Thanks in advance.
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DP states?! This problem is solved using a very stupid greedy algo.Oh, I understand it's a bit more difficult.
Seems that in order to make some bracket sequence regular, you have 4 different choices:
These ideas give an O(N^3) DP solution.
Thanks