You don’t have to solve 100% problems to get good results Previously, anxiety was a big problem for me. I could spend almost an hour just thinking about how low my score was, how I couldn’t handle it. It prevented me from thinking about the problems normally and became a big obstacle. Regarding strategy, the advice I remembered the most was this: in IOI, if you look at the statistics of previous years’ results, stable, although not high, results on each problem often give a higher ranking in total. That is, for good results, it is not at all necessary to solve 100% problems; you can simply complete many relatively simple partial blocks. You should read each problem, think for three minutes, and immediately write code from everything you came up with. And then think for another ten minutes and write code again. And when this is done for all three problems, you already have a good understanding of what makes sense to work on next. But the anxiety did not let go. I starte...