A binary tree is made of nodes, where each node contains a “left” pointer, a “right” pointer, and a data element. The “root” pointer points to the topmost node in the tree. The left and right pointers recursively point to smaller “subtrees” on either side.
Stanford CS Education Library: introduces the basic concepts of binary trees, and works through a series of practice problems with solution code in C/C++ and Java. Binary trees have an elegant recursive pointer structure, so they are a good way to learn recursive pointer algorithms.
Basically the tutorial is divided into four basic sections. These sections include Binary Tree Structure, Binary Tree Problems, C Solutions and Java versions of Binary Tree. First section is the introduction of binary trees and the code that operates on them. Binary Tree Problems section contains practice problems in increasing order of difficulty. C Solutions section provides solution code to the problems for C and C++ programmers and Java versions shows how binary trees work in Java, with solution code.
You can find the complete tutorial here. http://cslibrary.stanford.edu/110/BinaryTrees.html
A pdf version is also available here.
Binary Trees (49.7 KiB, 12,177 hits)
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