Compilare: user.cpp: In member function ‘void graf::afisare()’: user.cpp:42:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<A[i].size();j++) ^ user.cpp: In function ‘int main()’: user.cpp:115:27: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] G.citire("dijkstra.in"); ^