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Re:用一个灰常简洁的hash就可以到800+ms的。。。。。

Posted by 201720420 at 2018-07-11 16:21:25 on Problem 3274
In Reply To:用一个灰常简洁的hash就可以到800+ms的。。。。。 Posted by:talenth1 at 2011-09-12 18:21:50 
> int hash(int x)
> {
>   int sum=0;
>   for(int i=2;i<=k;++i){
> 	sum*=ha;
> 	sum+=a[x][i];
> 	sum%=hm;
> 	if(sum<0)sum+=hm;
>   }
>   return sum;
> }
> 
> //hm=100003,ha=41
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