# Status Problem Level Completes Likes
176

Reverse Alternate levels of a given Binary Tree.

Medium % 0
177

Given a Sorted Singly Linked List Array, Convert it into a Balanced Binary search Tree.

Medium % 1
178

Convert a Sorted Doubly Linked List to Balanced BST.

Medium % 1
179

Given a binary tree, Find the Maximum Path Sum between Any Two Leaves

Medium % 0
182

In a Binary Tree, Check if Two nodes has the same parent or are siblings

Medium % 0
183

In a Binary Tree, Check if two nodes are Cousins

Medium % 0
185

Sort an Given Array in the order defined by another array

Medium % 0
186

Sort an Array - odd numbers appear first in ascending order followed by the even numbers in descending order.

Medium % 0
188

Find the maximum width of a binary tree

Medium % 0
189

Find the number of occurrences of a number in a given sorted array.

Medium % 0
190

Find the first repeated element in an array by its index

Medium % 0
191

Determine whether given binary tree is binary search tree(BST) or not

Medium % 1
192

Given two binary trees, check if one binary tree is a subtree of another

Medium % 0
194

Inorder Successor in Binary Tree

Medium % 0
195

Sorted Array to Binary Search Tree of Minimal Height

Medium % 1
196

Level Order Traversal, Print each level in separate line.

Medium % 0
197

Find whether a Given Binary Tree is Balanced?

Medium % 0
198

Get the Height of a Node in a Binary Tree

Medium % 0
199

Add two numbers represented by a linked list, Numbers are Stored in FORWARD order

Medium % 0
200

Add two numbers represented by a linked list, Numbers are Stored in REVERSE order

Medium % 0
201

Reverse the binary representation of a number.

Medium % 1
202

Reverse a Linked List - Part 2

Medium % 0
203

Swap Every Kth Node in a LinkedList

Medium % 0
204

Replace all spaces in a String with '%20'

Medium % 0
205

Find Intersection Point in Two Linked List

Medium % 0
206

Find the Loop in a Linked list, find its length and Break the Loop

Medium % 0
207

Count All Paths from Top left to bottom right in Two Dimensional Array including Diagonal Paths

Medium % 1
209

Merge or Combine Two Sorted Linked Lists

Medium % 0
210

Find The Longest Sequence Of Prefix Shared By All The Words In A String

Medium % 0

Reverse Alternate levels of a given Binary Tree.

Given a Sorted Singly Linked List Array, Convert it into a Balanced Binary search Tree.

Convert a Sorted Doubly Linked List to Balanced BST.

Given a binary tree, Find the Maximum Path Sum between Any Two Leaves

In a Binary Tree, Check if Two nodes has the same parent or are siblings

In a Binary Tree, Check if two nodes are Cousins

Sort an Given Array in the order defined by another array

Sort an Array - odd numbers appear first in ascending order followed by the even numbers in descending order.

Find the maximum width of a binary tree

Find the number of occurrences of a number in a given sorted array.

Find the first repeated element in an array by its index

Determine whether given binary tree is binary search tree(BST) or not

Given two binary trees, check if one binary tree is a subtree of another

Inorder Successor in Binary Tree

Sorted Array to Binary Search Tree of Minimal Height

Level Order Traversal, Print each level in separate line.

Find whether a Given Binary Tree is Balanced?

Get the Height of a Node in a Binary Tree

Add two numbers represented by a linked list, Numbers are Stored in FORWARD order

Add two numbers represented by a linked list, Numbers are Stored in REVERSE order

Reverse the binary representation of a number.

Reverse a Linked List - Part 2

Swap Every Kth Node in a LinkedList

Replace all spaces in a String with '%20'

Find Intersection Point in Two Linked List

Find the Loop in a Linked list, find its length and Break the Loop

Count All Paths from Top left to bottom right in Two Dimensional Array including Diagonal Paths

Merge or Combine Two Sorted Linked Lists

Find The Longest Sequence Of Prefix Shared By All The Words In A String