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按挑战上的写了 g++ RE n发,然后找到源数据测试一下发现线段树的节点数可能有三万多,开大数组就ac了。。。QAQ

Posted by liweijunde at 2018-04-08 17:55:27 on Problem 2991 and last updated at 2018-04-08 17:57:22


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