Compilare: main.cpp:15:16: warning: overflow in implicit constant conversion [-Woverflow] int cost_minim=100000000000; ^~~~~~~~~~~~ main.cpp: In function 'int Verifica(int)': main.cpp:46:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<v[i].size();++j) ~^~~~~~~~~~~~ main.cpp: In function 'int Cost()': main.cpp:86:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<a.size();++i)viz[a[i]]=0; ~^~~~~~~~~ main.cpp: In function 'void Back(int)': main.cpp:100:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(k<nr_prim.size()) Back(k+1); ~^~~~~~~~~~~~~~~ main.cpp:102:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(k<nr_prim.size())Back(k+1); ~^~~~~~~~~~~~~~~