SHARECHAT 3RD QUESTION: A-Z COUNT
Need help on this question. I used map and binary search still all test cases not passed. Test is over now.
So if anybody can share the working code it would be helpful for me.\
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Just make vector for every character and find lower bound of k for S type queries and (lower bound of (k+1)) — 1 for L type queries. Also, Handle Not found condition. If you did the same and still getting WA to check your implementation.