#include <iostream>
#include <cmath>
using namespace std;

int main()
{
	long double inp;
	long int l;
	cin>>inp>>l;
	long int n,d;
	double minerr=inp;
	for(long i=l;i>0;i--)
	{
                long int j=(long int)(inp*i);
                long double err=fabsl((long double)(j)/(long double)(i)-inp);
                if(minerr>=err)
                {
			n=j;d=i;minerr=err;
		}
		j++;
		err=fabsl((long double)(j)/(long double)(i)-inp);
                if(minerr>=err)
                {
			n=j;d=i;minerr=err;
		}
	}
	cout<<n<<' '<<d<<endl;
	system("pause");
	return 0;
}

• Re:小弟这段C++程序有问题么 (39) DancingBlue 2006-09-17 21:08:44