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CS/CountInStrings.md

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+## Byomkesh needs to check for equality ##
+
+Byomkesh : Ajit babu, are you game to solve a challenge ?
+Ajit : Do I have a choice ?
+Byomkesh : Ha, ha, hah. Do not feel so resigned. Challenges are good for the little grey cells as Hercule Poirot would say.
+Ajit : I am no Hercule Poirot. Or Byomkesh Bakshi for that matter.
+Byomkesh : Yes. yes. You are the one and only Ajit Kumar Mitra !
+Ajit : Ok. Let us hear your challenge.
+
+Byomkesh : I have this string of characters. The string has only two types of characters - either 'A' or 'B'. 
+They can be repeated any number of times. I need to find out if the string has equal number of 'A's and 'B's or not.
+
+Ajit : This is easy for a change ! Just iterate through the string, count the number of each character and compare at the end.
+Byomkesh : Not so fast my friend. There are constraints.
+Ajit : Of course. Nothing comes without constraints.
+Byomkesh : You cannot use a counter. Nor can you find out the length of the string.
+Ajit : Now that is a challenge.
+Byomkesh : Question is can you solve it ?
+
+Write a clear description of how you would help Ajit solve this challenge. Code is not needed for this challenge. 
+Please use clear language to articulate the steps/methods that would be used to arrive at the final answer.