Compilare: user.cpp: In function ‘void dfs(int, int)’: user.cpp:12:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[nod].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:36:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<v[i].size();j++) ^ user.cpp:24:24: warning: unused variable ‘total’ [-Wunused-variable] int a,b,i,j,mlocal,total,max1,max2; ^