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 the book the previous contest questions and the Chinese team's training topics dealing with the problem of solving the problems on the key ideas and how flexible use of the algorithm knowledge.