Compilare: user.cpp: In member function ‘void graf::afisare()’: user.cpp:39:33: 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::prim()’: user.cpp:52:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<this->A[i].size();j++) ^ user.cpp:73:54: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<this->A[pdp2.first.second].size();i++) ^ user.cpp:46:12: warning: variable ‘vizitati’ set but not used [-Wunused-but-set-variable] int vizitati[200001],j; ^ user.cpp:47:12: warning: unused variable ‘l’ [-Wunused-variable] int l=1; ^ user.cpp:50:16: warning: unused variable ‘minim’ [-Wunused-variable] int i=1,minim,k,p=0; ^ user.cpp:50:22: warning: unused variable ‘k’ [-Wunused-variable] int i=1,minim,k,p=0; ^ user.cpp: In member function ‘void graf::afisareapm()’: user.cpp:94:33: 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:106:22: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] G.citire("apm.in"); ^