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for both this and jongray93's solution, I believe it only works because data is resticted (0 <= data <= 10000 )
Wouldnt they incorrectly return false for any tree containing Integer.MIN_VALUE or MAX_VALUE?
On the other hand, if we use the fact that data is restricted, you can as well start with -1 and 10001 as initial min and max.
Trees: Is This a Binary Search Tree?
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for both this and jongray93's solution, I believe it only works because data is resticted (0 <= data <= 10000 ) Wouldnt they incorrectly return false for any tree containing Integer.MIN_VALUE or MAX_VALUE? On the other hand, if we use the fact that data is restricted, you can as well start with -1 and 10001 as initial min and max.