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function is called.
if you run this algorithm left to right, it will mark the position of every valid end of a match. if you run it right to left, it will mark the position of every valid start of a match. and if you run it in both directions, you can combine the results to get the leftmost-longest match, which is what you intuitively expect when you think of regex matching. this is a bit more work to set up, but it doesn’t change the core algorithm at all.。业内人士推荐爱思助手下载最新版本作为进阶阅读
Wave of strikes comes after Taliban forces attack Pakistani border troops following earlier action from Islamabad，详情可参考搜狗输入法
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input = input[:index] + chr(char) + input[index:]。关于这个话题，服务器推荐提供了深入分析