Compilare: user.cpp: In member function ‘void graf::afisare()’: user.cpp:41:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<A[i].size();j++) ^ user.cpp: In member function ‘void graf::Dijkstra()’: user.cpp:56:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<this->A[1].size();i++) ^ user.cpp:71:65: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<this->A[pdp.first.second].size();i++) ^ user.cpp:87:64: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<this->A[pdp.first.first].size();i++) ^ user.cpp:64:17: warning: unused variable ‘ok’ [-Wunused-variable] int ok=0; ^ user.cpp: In function ‘int main()’: user.cpp:120:27: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] G.citire("dijkstra.in"); ^