entree: entree.o
    g++ -Wall -g -o entree entree.o
entree.o: entree.cpp AvlTree.h BinarySearchTree.h RedBlackTree.h SplayTree.h
    g++ -Wall -g -c entree.cpp
clean:
rm --force entree entree.exe entree.o AvlTree.o BinarySearchTree.o RedBlac    kTree.o RedBlackTree.o SplayTree.o