Compilare: user.cpp: In function ‘void updateAib(int, int, int, int, int)’: user.cpp:54:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = pos ; i <= arb[Node].below.size() ; i += lsb(i)) ^ user.cpp: In function ‘void buildAib(int, int, int)’: user.cpp:60:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0 ; i < arb[Node].below.size() ; ++ i) ^ user.cpp: In function ‘int Query(int, int, int, int, int, int)’: user.cpp:133:13: warning: unused variable ‘li’ [-Wunused-variable] int li = 0, ls = arb[Node].below.size() - 1; ^ user.cpp:133:21: warning: unused variable ‘ls’ [-Wunused-variable] int li = 0, ls = arb[Node].below.size() - 1; ^