这本书你可以了解经过测试的解决方案来有效解决问题，你将学习一些高级数据结构和一些适用标准的数据结构来提高算法效率的新方法—改进。你的解决问题的能力就会提高，从而为每个算法做出有效的决策。(We expect that you will use this book to learn about tried and tested solutions to
solve problems efficiently. You will learn some advanced data structures and some
novel ways to apply standard data structures to improve the efficiency of algo-
rithms. Your problem-solving abilities will improve when you see the key
decisions for each algorithm that make for efficient solutions.)