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急救:这本书有没有答案的《The Design and Analysis of Computer Algorithms》A. Aho, J. Hopcroft, and J. Ullman.(附一些问题)

Posted by shhu at 2007-12-25 22:21:34
另外问些简单题

如何用正则表达式表示
所有带奇数个a和偶数个b的字符串

证明:
1》floyd最短路径对有负权边没负环的图依然有效
2》DAG的传递规约是确定的(唯一的)

还有大家有没有听说过一个O(nloglogn)的UNION_FIND,并且可以优化到O(nlogloglogn)
给个网页,谢谢

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