Compilare: user.cpp: In function ‘int bellma()’: user.cpp:29:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();i++) ~^~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:86:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[1].size();i++) ~^~~~~~~~~~~~ user.cpp:87:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<v[fina].size();j++) ~^~~~~~~~~~~~~~~