public boolean sameBST(int tree1[], int tree2[]){
        return sameBST(tree1,tree2,Integer.MIN_VALUE,Integer.MAX_VALUE,0);
    }
http://www.geeksforgeeks.org/check-for-identical-bsts-without-building-the-trees/
Test cases
Both array should be same size and have exact same elements and first element should be same
src/com/interview/tree/IdenticalTrees.java