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Given keys and frequency at which these keys are searched, how would you create a binary search tree from these keys such that the cost of searching i 阅读全文
posted @ 2017-08-16 14:14
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Write a program to delete a tree. Solution. To delete all tree nodes, we need to set all non-leaf nodes' children nodes to null. So for a given non-le 阅读全文
posted @ 2017-08-16 09:53
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Write a function to detect if two trees are isomorphic. Two trees are called isomorphic if one of them can be obtained from other by a series of flips 阅读全文
posted @ 2017-08-16 09:42
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Given a binary tree, where every node value is a number . Find the sum of all the numbers which are formed from root to leaf paths. For example consid 阅读全文
posted @ 2017-08-16 03:25
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