USACO 2015 Feb Bronze 1.Censoring (Bronze) 栈+Hash

Farmer_ZY

于 2016-08-27 20:42:20 发布

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分类专栏： USACO之趣

本文链接：https://blog.youkuaiyun.com/qq_35891865/article/details/52336934

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该博客介绍了一道USACO 2015 Feb Bronze题目，内容涉及在字符串S中删除所有出现的子串T，使用栈和哈希来实现这一过程。通过读取每个字符并将其压入栈中，当栈顶字符组合成的子串与T相等时，删除这些字符。博客提供了问题的思路和模拟过程，并分享了简单的代码实现。

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Description
Farmer John has purchased a subscription to Good Hooveskeeping magazine for his cows, so they have plenty of material to read while waiting around in the barn during milking sessions. Unfortunately, the latest issue contains a rather inappropriate article on how to cook the perfect steak, which FJ would rather his cows not see (clearly, the magazine is in need of better editorial oversight).

FJ has taken all of the text from the magazine to create the string S of length at most 10^6 characters. From this, he would like to remove occurrences of a substring T of length <= 100 characters to censor the inappropriate content. To do this, Farmer John finds the _first_ occurrence of T in S and deletes it. He then repeats the process again, deleting the first occurrence of T again, continuing until there are no more occurrences of T in S. Note that the deletion of one occurrence might create a new occurrence of T that didn't exist before.

Please