Compilare: user.cpp: In function ‘void dfs_euler(int, int)’: user.cpp:25:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<L[x].size();i++) ^ user.cpp: In function ‘void rmq(int, int)’: user.cpp:55:11: warning: unused variable ‘minn’ [-Wunused-variable] int w,k,p,minn; ^ user.cpp: In function ‘int main()’: user.cpp:73:16: warning: unused variable ‘i’ [-Wunused-variable] int main(){int i,j; ^ user.cpp:73:18: warning: unused variable ‘j’ [-Wunused-variable] int main(){int i,j; ^