Compilare: user.cpp: In function ‘void specialDFS(int, int)’: user.cpp:37:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v[nod].size(); ++i) ^ user.cpp:41:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < v[vecin].size(); ++j) ^ user.cpp:60:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v[nod].size(); ++i) ^ user.cpp:69:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v[nod].size(); ++i) ^ user.cpp:33:9: warning: variable ‘directia2’ set but not used [-Wunused-but-set-variable] int directia2; ^ user.cpp:32:9: warning: ‘directia’ may be used uninitialized in this function [-Wmaybe-uninitialized] int directia; ^