Compilare: main.cpp: In function 'float Prim(std::vector<std::vector<std::pair<int, float> > >)': main.cpp:39:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, float> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int i=0;i!=grafbloc[nod].size();i++) | ~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:48:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, float> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for(int k=0;k!=grafbloc[tata[nod]].size();k++) | ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~