0_0_38634134_19362.cpp: In function 'int f(int)': 0_0_38634134_19362.cpp:10:6: error: invalid operands of types 'int' and '__gnu_cxx::__enable_if<true, double>::__type' {aka 'double'} to binary 'operator%' if(n%sqrt(n)==0){ ~^~~~~~~~