Compilare: user.cpp: In function ‘int F(int, int, int&)’: user.cpp:50:6: warning: overflow in implicit constant conversion [-Woverflow] m=1000000000000000; ^ user.cpp: In function ‘void DFS(int, int)’: user.cpp:69:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[node].size();i++) ^ user.cpp: In function ‘void DFS2(int, int)’: user.cpp:100:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[node].size();i++) ^ user.cpp:98:9: warning: unused variable ‘x’ [-Wunused-variable] int x=F(Father[0][node],up-1,m); ^