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memset跟for循环差不多吧，只是填充方式可能不一样In Reply To:Re:实在不解，为什么visited[300000]进行memset时会严重超时！！纠结了一个下午，改为visited[40]后300+ms。。。 Posted by:zhanglongpan at 2010-05-18 22:24:19 你用memset一样要O(N)的循环。可能填充的时候是按位来填充。 个人看法。 不信的话你可以试试用for循环代替memset去试试时间性能。 如有误解，请指教 Followed by: Post your reply here: |
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