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These 'walkthroughs' are designed to help you solve the problems in the 'Starter Problem' sets. They are aimed at improving your coding and problem solving skills to the point where you can confidently tackle competitions like the Australian Informatics Olympiad (AIO).
Remember, these are a work in progress, and there's always room for feedback and improvement. If you have any comments or questions about these problems and their walkthroughs, or about the Australian Informatics program at all, don't hesitate to ask on the forums.
Sample code in C++ and Pascal that implements the solutions described in the walkthrough. These solutions are intended as a reference in case of language difficulties, and you should avoid looking at them if possible until you have successfully solved the relevant problem.