Compilare: user.cpp: In function ‘int main()’: user.cpp:52:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘void BuildTree()’: user.cpp:33:47: warning: iteration 131071 invokes undefined behavior [-Waggressive-loop-optimizations] for (int i = 1; i <= aMAX; i++) arbore[i] = 0; ~~~~~~~~~~^~~ user.cpp:33:23: note: within this loop for (int i = 1; i <= aMAX; i++) arbore[i] = 0; ^