Compilare: user.cpp: In function ‘long int bs(const long int&)’: user.cpp:33:13: warning: variable ‘i’ set but not used [-Wunused-but-set-variable] long step, i; ^ user.cpp:38:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘long int query(long int, long int)’: user.cpp:56:33: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] return query (dp [p][a], b - p2); ^