Compilare: user.cpp: In function ‘void MemComp(int, int)’: user.cpp:29:44: warning: variable ‘M2’ set but not used [-Wunused-but-set-variable] pair< int, int > Mct, M1 = mp( X, Y ), M2 = mp( Y, X ); ^~ user.cpp: In function ‘void DF(int)’: user.cpp:50:13: warning: unused variable ‘curent’ [-Wunused-variable] int curent=*it; ^~~~~~ user.cpp: In function ‘int main()’: user.cpp:90:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( i=0; i<Comp.size(); i++ ) //pentru fiecare componenta biconexa in parte ~^~~~~~~~~~~~ user.cpp:92:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( j=0; j<Comp[i].size(); j++ ) ~^~~~~~~~~~~~~~~ user.cpp:95:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( j=0; j<Comp[i].size(); j++ ) ~^~~~~~~~~~~~~~~