Compilare: user.cpp: In function ‘void citire()’: user.cpp:45:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < vec[X].size(); i++) ^ user.cpp: In function ‘void solve()’: user.cpp:70:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < vec[crt.nod].size(); i++) ^ user.cpp:57:9: warning: unused variable ‘nrc’ [-Wunused-variable] int nrc, d; ^ user.cpp:57:14: warning: unused variable ‘d’ [-Wunused-variable] int nrc, d; ^ user.cpp: In function ‘void afisare()’: user.cpp:82:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < vec[X].size(); i++) ^