Compilare: user.cpp: In function ‘int get_ciclu(int, int)’: user.cpp:30:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < graph[nod].size(); ++i) { ^ user.cpp: In function ‘void coloreaza(int)’: user.cpp:56:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < graph[nod].size(); ++i){ ^ user.cpp: In function ‘int main()’: user.cpp:82:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i < sol.size(); ++i) ^ user.cpp:85:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < sol.size(); ++i) ^