Judge Information
./test.cpp: In function 'int main(int, const char**)':
./test.cpp:5:5: error: 'cin' was not declared in this scope
cin>>a>>b;
^
./test.cpp:5:5: note: suggested alternative:
In file included from ./test.cpp:1:0:
/usr/include/c++/5/iostream:60:18: note: 'std::cin'
extern istream cin; /// Linked to standard input
^
./test.cpp:6:5: error: 'cout' was not declared in this scope
cout<<a+b;
^
./test.cpp:6:5: note: suggested alternative:
In file included from ./test.cpp:1:0:
/usr/include/c++/5/iostream:61:18: note: 'std::cout'
extern ostream cout; /// Linked to standard output
^