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IF a given input tree follows binary search tree property or not - Check if a tree is BST or not - Algorithm
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Algorithm - Check if a tree is BST or not - If a given input tree follows binary search tree property or not
If a given input tree follows Binary search tree property or not

For example

if the input is:

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Output should be false:

As 4 in the left sub-tree is greater than the root value(3)

If the input is:

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Output should be true

 
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