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!!!感谢啊,第一次写的伸展树就是错在这里

Posted by Gyber at 2012-02-15 21:32:05 on Problem 3468
In Reply To:wa了n次,终于ac了。。。 Posted by:wegnahz at 2011-06-19 12:34:16
> 判断标记需不需要往下传的时候,要写!=0而不是>0,因为有负数......
> 标记用int就行,不用long long

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