View Compilation Error

0_0_24476320_17085.cpp:3:572: fatal error: GCC4.9.2/lib/gcc/x86_64-w64-mingw32/4.9.2/include/iostream>usin: Invalid argument
 #include<iostream>using namespace std; struct node{   int d;   int p;}; typedef int Case;node nod[10];const double PI=3.1415926; int main(){    int n;    Case cas=1;     while(cin>>n,n)    {        double min=1000000,area,sq;        int rem;        for(int i=0;i<n;i++)        {            cin>>nod[i].d>>nod[i].p;             area=PI*(nod[i].d/2.0)*(nod[i].d/2.0);            sq=nod[i].p/area;            if(min>sq)            {                min=sq;                rem=nod[i].d;            }         }         cout<<"Menu "<<cas++<<": "<<rem<<endl;    }     return 0;}
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            ^
compilation terminated.