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昨天上海赛区B题 我的超完美代码.为什么会超时???

Posted by zjut020 at 2009-10-26 17:31:39
#include<iostream>
using namespace std;
int a,b;int cnt;int p;
int func(int n)
{
    if(n==1){
	    return a%p;	 
    } 	 
    else if(n==2)
    {
	    return b%p;	   	 
    }
    else return func(n-1)*func(n-2)%p;
}
int main()
{
     int  t,n;
	 for(cin>>t;t--&&cin>>n>>a>>b>>p;cout<<func(n)<<endl);	
}

这是完全按照题目要求来做的啊..求高手解答.谢谢!

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