Compilare: user.cpp: In function ‘void bfs()’: user.cpp:21:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < vf[x].size(); i++){ ^ user.cpp:34:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < vf[x].size(); i++){ ^ user.cpp:15:15: warning: unused variable ‘z’ [-Wunused-variable] int x, y, z; ^ user.cpp: In function ‘int main()’: user.cpp:71:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < rezultate.size(); i++){ ^