2. From bottom to top, for each node A, treat it as a root node and count the total number of nodes in this subtree recursively. 3. For each node A, check if there exists an edge that halves the given input tree
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https://www.geeksforgeeks.org/generic-tree-level-order-traversal/ this link is one of the only code examples I could find anyway this seems quite ugly especially when adding a new node 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ...
Two trees are isomorphic in the following 2 cases. 1. both trees are null; 2. a.neither tree is null; b.their roots' values are the same; c. either tree 1's left subtree is isomorphic with tree 2's left subtree and tree 1's right subtree is isomorphic with tree 2's right subtr...
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reference :http://www.geeksforgeeks.org/inorder-successor-in-binary-search-tree/(不喜欢CCI上的渣渣答案) 4.6Design an algorithm and write code to fnd the frst common ancestor of two nodesin a binary tree Avoid storing additional nodes in a data structure NOTE: This is not ...
In this case, the uncle is black, so we have case 2 ... Move x up and rotate left. Still not a red-black tree .. the uncle is black, but x's parent is to the left .. Change the colours of 7 and 11 and rotate right .. ...