Eroare de compilare: user.cpp:2:17: error: ‘sdt’ is not a namespace-name using namespace sdt; ^ user.cpp:2:20: error: expected namespace-name before ‘;’ token using namespace sdt; ^ user.cpp:3:1: error: ‘ifstream’ does not name a type ifstream in ("cmmdc.in"); ^ user.cpp:4:1: error: ‘ofstream’ does not name a type ofstream out ("cmmdc.out"); ^ user.cpp: In function ‘int main()’: user.cpp:8:5: error: ‘in’ was not declared in this scope in>>a>>b; ^ user.cpp:16:9: error: ‘out’ was not declared in this scope out<<0; ^ user.cpp:18:9: error: ‘out’ was not declared in this scope out<<r; ^