Compilare: main.cpp: In member function 'void graf::afisare_lista()': main.cpp:120:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 120 | for(auto j=0 ; j<lista[i].size(); j++) | ~^~~~~~~~~~~~~~~~ main.cpp: In member function 'void graf::afisare_muchii()': main.cpp:141:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 141 | for(auto i=0 ; i<muchii.size(); i++) | ~^~~~~~~~~~~~~~ main.cpp: In member function 'bool graf::havel_hakimi_verificare(std::vector<int>&)': main.cpp:261:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 261 | if( cnt > secv.size()) return false; //verific ca nu ies din secventa | ~~~~~^~~~~~~~~~~~~ main.cpp:276:1: warning: control reaches end of non-void function [-Wreturn-type] 276 | } | ^ main.cpp:266:23: warning: 'nr' may be used uninitialized in this function [-Wmaybe-uninitialized] 266 | if(secv[nr] < 0) return false; | ^