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HackerRank Solution : Birthday Chocolate in C++. Hackerrank Solutions. SQL HackerRank Solutions. Follow Mayukh Datta on WordPress.com. HackerRank Solution : Breaking the Records in C++. You can practice and submit all HackerRank problems solution in one place. Here is all the solution in just a single click. The class should have display() method, to print the width and height of the rectangle separated by space. C++ 3. C 2. A complete solution for SQL problems on HackerRank. My Hackerrank profile.. HackerRank is the best way to boost your programming skills by solving thousands of problems. This HackerRank problem solving exercise consists of reversing an array of integers. 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