Spot the data structure that is NOT linear

Exercise and reference answers

Questions

1. Items

   1. Array
   2. Linked List
   3. Stack
   4. Binary Tree

   Reason

   Binary Tree is a hierarchical (non-linear) data structure.

   Odd item

   Binary Tree

2. Items

   1. Hash Table
   2. Queue
   3. Stack
   4. Array

   Reason

   Hash Table is non-linear; the others are linear structures.

   Odd item

   Hash Table