Compilare: main.cpp: In function 'int Dijkstra()': main.cpp:27:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp:30:17: warning: unused variable 'muchie' [-Wunused-variable] int muchie=v[nod][i].second; ^~~~~~ main.cpp: In function 'int main()': main.cpp:100:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[i].size();j++) ~^~~~~~~~~~~~