Main.cc: In function ‘int main()’:
Main.cc:11:5: error: ‘cout’ was not declared in this scope
cout << "a+b= " << a + b << endl;
^~~~
Main.cc:11:5: note: suggested alternative: ‘cosl’
cout << "a+b= " << a + b << endl;
^~~~
cosl
Main.cc:11:33: error: ‘endl’ was not declared in this scope
cout << "a+b= " << a + b << endl;
^~~~
Main.cc:11:33: note: suggested alternative: ‘ynl’
cout << "a+b= " << a + b << endl;
^~~~
ynl