Main.cc: In function ‘int main()’: Main.cc:5:5: error: ‘cin’ was not declared in this scope cin>>a; ^~~ Main.cc:5:5: note: ‘std::cin’ is defined in header ‘’; did you forget to ‘#include ’? Main.cc:1:1: +#include using namespace std; Main.cc:5:5: cin>>a; ^~~ Main.cc:7:5: error: ‘cout’ was not declared in this scope cout<<"yes"<’; did you forget to ‘#include ’? Main.cc:7:18: error: ‘endl’ was not declared in this scope cout<<"yes"<’; did you forget to ‘#include ’? Main.cc:1:1: +#include using namespace std; Main.cc:7:18: cout<<"yes"<