Created
June 27, 2012 21:50
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Find inOrder successor and inOrder predecessor in binary search tree (BST)
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| Node predecessor(Node node) { | |
| if ((node.left == null) && (node.right==null)) { | |
| return node; | |
| } | |
| if (node.right != null) { | |
| return predecessor(node.right); | |
| } | |
| if (node.left != null) { | |
| return predecessor(node.left); | |
| } | |
| } |
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| Node successor(Node node) { | |
| if ((node.left == null) && (node.right==null)) { | |
| return node; | |
| } | |
| if (node.left != null) { | |
| return successor(node.left); | |
| } | |
| if (node.right != null) { | |
| return successor(node.right); | |
| } | |
| } |
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is this correct? if yes can you please explain how does this work?