Compilare: main.cpp: In function 'void Prim()': main.cpp:77:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<G[im].size(); j++) ~^~~~~~~~~~~~~ main.cpp:65:17: warning: unused variable 'p' [-Wunused-variable] pereche p; ^ main.cpp:53:9: warning: unused variable 'z' [-Wunused-variable] int z,lg,i,nr; ^ main.cpp:53:11: warning: unused variable 'lg' [-Wunused-variable] int z,lg,i,nr; ^~