The goal of this project is to create a class search. I will need methods of binary search and linear search. For each method you are going to ask the user for a key, then search for this key in an array of numbers (you can assume the numbers in the array). If you found the key return its location,
Tag: binary-search-tree
Will TreeMap (BST) be able to solve this question in reasonable time?
You are given a list of up to 10^7 chess players and their ratings r in a competition. However, this competition uses a unique form of rating calculations. The task is to determine the rank of a player after a certain point in the competition. During the competition, the following can occur: A player joins th…
Checking a tree to be a BST
Here is my attempt to check whether a tree is a BST or not: Code works fine as tested with multiple test cases. But I am not sure if this is a good, clean approach. Recursive method is big it seems. I am dealing with scenarios like null left node, null right node, node itself null, both child nodes null
Finding the number of nodes with int data greater than x in a binary search tree
I’m trying to recursively find the number of nodes that have int data greater than than a given int. This is being done on a binary search tree, so it makes things a bit easier in terms of finding the amount. However, my solution seems to be one-off on all of the tests I’ve run and I can’t f…
Serialize and Deserialize Binary Tree
I am working on the LeetCode problem 297. Serialize and Deserialize Binary Tree: Serialization is the process of converting a data structure or object into a sequence of bits so that it can be stored in a file or memory buffer, or transmitted across a network connection link to be reconstructed later in the s…
Delete leaf nodes between a range in BST
I want to delete the leaf nodes, the values of which are outside a given range (say [L R]). I made a solution in which I was simply traversing all the nodes and checking if my current leaf node’s value is in the given range or not. If it is not then I’m removing this node. My approach – But
Binary Search Tree Traversals failed to execute when using recursion
I am new to Java programming and data structures. Nevertheless I could implement the following code after so many efforts. There I need to insert values to nodes, and print the values in each node to demonstrate all 03 types of depth first traversal techniques with the help of recursion. PreOrder traversal Po…
How treemap handles case of putting key on same index?
I tried out following code: public static void main (String[] args) throws java.lang.Exception { // sorting based on number of dots Map map =new TreeMap((o1, o2) -&…
Binary Search Tree’s add method in Java
I have a piece of code for inserting a node to Binary Search Tree in Java like: Why doesn’t my information print when I run the program? Thank you for answering my question!! Answer You don’t update the left/right pointers when the recursion returns. Also, the local variable head is different from…