Category: Amazon Questions

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Inorder Successor in Binary Tree

Algorithms – Inorder Successor in Binary Tree Objective: Given a Binary tree (Not binary Search Tree ), find the inorder successor of a node. What is Inorder Successor: Inorder successor of a node is...

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Sorted Array to Binary Search Tree of Minimal Height

Objective: Given a sorted array with unique elements, Create a binary search tree with minimal height. Why minimal height is important : We can do the linear scan to the array and make the...

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In a Binary Tree, Create Linked Lists of all the nodes at each depth.

Objective: Given a Binary tree create Linked Lists of all the nodes at each depth , say if the tree has height k then create k linked lists. NOTE : This problem is very...

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Delete a Node in the Middle of a linked list, Given only access to that Node

Objective: Write a program to Delete a Node in the Middle of a linked list, Given only access to that Node Example: Original List : ->1->2->8->3->7->0->4 After Deleting the mid node (say 7) :...

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Find the n’th Node from the end of a given Linked List

Objective: Given a linked list and integer ‘n’, write an algorithm to find the nth node from the end in the Linked List. Example: Original List : ->1->2->8->3->7->0->4 Output : 3rd Element from the...

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Check if one string is Rotation of another string

Objective: Write an algorithm to check if one string is Rotation of another string. This question has been asked in the Amazon interview. Example: Input Strings : ‘sumitjain’ and ‘tjainsumi’ Output : true Input...

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