Eroare de compilare: user.cpp:4: error: ‘::main’ must return ‘int’ user.cpp: In function ‘int main()’: user.cpp:8: error: expected initializer before ‘ct’ user.cpp:13: error: ‘i’ was not declared in this scope user.cpp:18: error: ‘ct’ was not declared in this scope user.cpp:20: error: ‘j’ was not declared in this scope user.cpp:22: error: ‘ct’ was not declared in this scope user.cpp:7: warning: unused variable ‘h’ user.cpp:7: warning: unused variable ‘nr1’