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Re:第一次参加,请高手帮我指正

Posted by y05zyg at 2007-08-26 08:59:41 on Problem 3331
In Reply To:第一次参加,请高手帮我指正 Posted by:youngtree at 2007-08-11 14:18:46
> 总是wrong answer,耽误一点时间,谢谢。
> 
> #include <iostream>
> using namespace std;
> 
> int count_num(int i,int j)
> {
> 	int res=0;
> 
> 	int prod=1;
> 	for(int k=1;k<=i;++k)
> 	{
> 		prod *= k;
> 	}
> 
> 	while(prod!=0)
> 	{
> 		if((prod-(prod/10)*10)==j)
> 		{
> 			res++;
> 		}
> 		prod /= 10;
> 	}
> 	return res;
> }
> 
> int main(int argc,char* argv[])
> {
> 	int num=0;
> 	cin>>num;
> 	for(int k=0;k<num;++k)
> 	{
> 		int i=0,j=0;
> 		cin>>i>>j;
> 		
> 		cout<<count_num(i,j)<<endl;
> 	}
> 	return 0;
> }

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