Compilare: user.cpp: In function ‘void afis()’: user.cpp:40:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<A[i].size(); j++) ^ user.cpp: In function ‘int vec_nemarc(int)’: user.cpp:55:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<A[vecin].size() && s <= val[vecin]; j++) ^ user.cpp: In function ‘void bf(int)’: user.cpp:66:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<A[p].size(); i++) ^