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dimaraw [331]
3 years ago
5

EBay buyers voluntarily comment to other users and sellers on the quality of service, promptness of shipping, and their general

satisfaction with the product. This is one of the most popular examples of user-generated content and is called ____________.
A) Explicit system
B) Knowledge system
C) Reputation system
D) User-generated sales cycle
Computers and Technology
1 answer:
Orlov [11]3 years ago
3 0

Answer:

I picked c

Explanation:

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A perfect binary tree is a complete binary tree with all levels fully filled. Add a method in the BST class to return true if th
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Answer:

class BST {

static class Node

{

int val;

Node left, right;

}

static boolean checkPerfectBT(Node node, int h, int d)

{

if (node == null)

return true;

 

if (node.left == null && node.right == null)

{

if(h==d+1)

return true;

else

return false;

}

 

if (node.left == null || node.right== null)

return false;

 

return checkPerfectBT(node.left, h, d+1) && checkPerfectBT(node.right, h, d+1);

}

static int height(Node node)

{

int dep = 0;

while (node != null)

{

node = node.right;

dep=dep+1;

}

return dep;

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static boolean isPerfectBT(Node node)

{

int h = height(node);

return checkPerfectBT(node, h, 0);

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node.left.left = addNode(21);

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node.right.left = addNode(37);

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System.out.println("This is a Perfect Binary tree");

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}

}

Explanation:

  • Calculate the depth of BST by using a while loop until it reaches a null value.
  • In the addNode method, make an object of Node class.
  • In the main method, pass the values to addNode method.
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