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Re:这种算法对吗?(AC啦，自己顶一下)

Posted by msclub_acm_13 at 2008-04-20 14:18:26 on Problem 1718 and last updated at 2008-04-20 14:19:07
In Reply To:这种算法对吗? Posted by:msclub_acm_13 at 2008-04-11 23:36:48

> 先对所有a+b求最大公约数，得到最大时间t1。然后在这段时间内做DP （a[t][i]代表t时刻i地址是否可达），每次检查a[t-1][j](0<=i-5<=j<=i-1)是否可达，有一个可达则a[t][i]可达。
> 请高人赐教啊，WA了好多次了。。。

呵呵，终于AC了，忘了考虑跳过了桥墩可以跳回来，所以条件要改为：
(0<=i-5<=j<=i+5<=n)

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