View Compilation Error

0_0_24150562_2382.cpp:1:539: fatal error: GCC4.9.2/lib/gcc/x86_64-w64-mingw32/4.9.2/include/iostream>usin: Invalid argument
 #include<iostream>using namespace std;int main(){    int t;    while(cin>>t)    {        if(t<0||t>100)            cout<<"Score is error!"<<endl;        else            if(t<60)                cout<<"E"<<endl;            else                switch (t/10)                {                    case 10:                    case 9:     cout<<"A"<<endl;break;                    case 8:     cout<<"B"<<endl;break;                    case 7:     cout<<"C"<<endl;break;                    case 6:     cout<<"D"<<endl;break;                }    }}
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compilation terminated.