Clarification on question

#1

Sir

  1. How to distinguish b/w str and pattern in this case as both are in the same line i.e “aa a*a”
  2. if we get one ‘*’ in pattern, then will it match with every character in str ?
#2

The first string in the input is the text and the second string is going to be the pattern that you are going to match it against. For the second query, yes, the * matches with any number of occurrences of characters.

#3

Getting 3 test-cases correct and 6 wrong in this code:

#4

You are missing one case of recursion. Think of what happens when we try to match * with just a single char

#5

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