The following problem: Your text to link here... requires DP + 2D BIT according to comment section but I have never used 2D BIT anywhere except for learning its basic concept. Can someone explain how to solve this problem using this concept? Thanks in advance.
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It can be solved in 1D bit+dp (no need for 2D or maybe it is another solution) but try solving it with only dp then you can realize where the bit can be used (You will change a loop to bit).
Thanks!! Will look into it.