Compilare: main.cpp: In member function 'int BTree::leftBound(int)': main.cpp:462:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In member function 'int BTree::rightBound(int)': main.cpp:469:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In member function 'Node* BTree::find(int)': main.cpp:498:1: warning: control reaches end of non-void function [-Wreturn-type] } ^