Golu and url shortner

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Golu is a student of Computer Engineering and he decided to make a project for himself.So he started working on URL shortner.While working on project he got confused.You are a good friend of Golu so he asked you for help. You have given a link and you have to convert it into a short link using algorithm given by Golu. Your Task is simple.You have to find 3 most occuring alphabets a1,a2,a3 with th

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solution.cppC++17

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