Compilare: user.cpp: In function ‘arbore query(int, int, int, int, int)’: user.cpp:43:10: warning: suggest parentheses around comparison in operand of ‘==’ [-Wparentheses] if(st==dr==1){ ^ user.cpp: In function ‘int main()’: user.cpp:59:20: warning: unused variable ‘j’ [-Wunused-variable] register int i,j,A,B; ^ user.cpp: In function ‘arbore query(int, int, int, int, int)’: user.cpp:56:1: warning: control reaches end of non-void function [-Wreturn-type] } ^