Compilare: user.cpp:15:27: warning: overflow in implicit constant conversion [-Woverflow] int t[80000],f[80000],inf=99999999999,n; ^ user.cpp: In function ‘void dijkstra(int)’: user.cpp:26:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[x].size();i++) ^ user.cpp:19:18: warning: unused variable ‘g’ [-Wunused-variable] register int g,x,val; ^ user.cpp: In function ‘int main()’: user.cpp:40:20: warning: unused variable ‘j’ [-Wunused-variable] register int i,j,m,k,x,y,cost; ^