本书总结了历届国际奥林匹克竞赛（IOI）的试题特点及我国参赛选手的培训经验。书中许多例题取自历届大赛的试题及中国队选手的训练题目，针对问题讲解了解题的关键思路及如何灵活运用有关的算法知识。-the book summarizes the successive international Olympiad (IOI) and the characteristics of the questions my players training experience. Many examples from