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终于知道为什么不可以用A*了

Posted by BlueSkyThinker at 2009-09-04 20:02:51 on Problem 3463
 一开始没想到什么好的方法,于是就用做类似k短路(2449)时的A*,但是发现总是MLE。于是去网上搜了一个解题报告,AC了后再来测试,发现此题的答案会超过10^8,如此之大的数量级,优先队列就把内存撑破了,而2449中则有限制k<=1000,所以不会MLE。~~菜鸟的想法。

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