算法导论学习笔记(2):Having a solid base of algorithm knowledge and technique is one characteristic that separates the truly skilled programmers from the novices. 是否具有扎实的算法知识和技术基础，是区分真正熟练的程序员与新手的一项重要特征。 1. 循环不变式的三 Having a solid base of algorithm knowledge an