MLE Error in WildCard Pattern Matching

My code is passing all but one test cases, how to get rid of this MLE error, I am comfortable in a top-down approach, it seems all solutions requires bottom-up approach.

Yes bottom up is required!
whenever you are done with top down, just observe how DP table is filled, apply this similarly iteratively!

  1. See the base case and fill them into DP table.
  2. Apply same recurrence as in top down (instead of calling function, use dp table!)

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