Compilare: main.cpp: In function 'void solve()': main.cpp:41:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();++i) ~^~~~~~~~~~~~~~ main.cpp: In function 'void umple(int, int, int)': main.cpp:24:22: warning: iteration 7 invokes undefined behavior [-Waggressive-loop-optimizations] cy=y+dy[i]; ~~~~^ main.cpp:21:20: note: within this loop for(int i=0;i<8;++i) ~^~