Eroare de compilare: user.cpp:2:20: error: vector.h: No such file or directory user.cpp: In function ‘void cit()’: user.cpp:10: error: ‘N’ was not declared in this scope user.cpp:10: error: ‘M’ was not declared in this scope user.cpp:10: error: ‘X’ was not declared in this scope user.cpp:10: error: ‘Y’ was not declared in this scope user.cpp:14: error: ‘V’ was not declared in this scope user.cpp:14: error: ‘push_back’ was not declared in this scope user.cpp: In function ‘void bfs()’: user.cpp:22: error: ‘C’ was not declared in this scope user.cpp:22: error: ‘X’ was not declared in this scope user.cpp:27: error: ‘i’ was not declared in this scope user.cpp:27: error: ‘V’ was not declared in this scope user.cpp:30: error: ‘D’ was not declared in this scope