# Status Problem Level Completes Likes
176

Lowest Common Ancestor in a Binary Search Tree.

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177

Given a binary tree, find out the maximum sum of value from root to each leaf.

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178

Reverse Alternate levels of a given Binary Tree.

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179

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

Medium % 1
180

Convert a Sorted Doubly Linked List to Balanced BST.

Medium % 1
181

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

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184

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

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185

In a Binary Tree, Check if two nodes are Cousins

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187

Sort an Given Array in the order defined by another array

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188

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

Medium % 0
190

Find the maximum width of a binary tree

Medium % 0
191

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

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192

Find the first repeated element in an array by its index

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193

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

Medium % 1
194

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

Medium % 0
196

Inorder Successor in Binary Tree

Medium % 0
197

Sorted Array to Binary Search Tree of Minimal Height

Medium % 1
198

Level Order Traversal, Print each level in separate line.

Medium % 0
199

Find whether a Given Binary Tree is Balanced?

Medium % 0
200

Get the Height of a Node in a Binary Tree

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201

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

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202

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

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203

Reverse the binary representation of a number.

Medium % 1
204

Reverse a Linked List - Part 2

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205

Swap Every Kth Node in a LinkedList

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206

Replace all spaces in a String with '%20'

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207

Find Intersection Point in Two Linked List

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208

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

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209

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

Medium % 1

Lowest Common Ancestor in a Binary Search Tree.

Given a binary tree, find out the maximum sum of value from root to each leaf.

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