Compilare: user.cpp: In function ‘void bf(int)’: user.cpp:23:58: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < noduri[coada.front()].vecini.size(); i++){ ^ user.cpp:33:59: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < noduri[coada.front()].vecini.size(); i++){ ^ user.cpp:43:57: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < noduri[coada.front()].vecini.size(); i++){ ^ user.cpp: In function ‘int main()’: user.cpp:74:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < marked.size(); i++){ ^