Learn essential coding patterns to answer problems and prepare for tech companies' interviews.

Ace the JavaScript Coding Interview

This module teaches us the underlying patterns behind common coding interview questions. By learning these essential patterns, we'll be able to unpack and answer any problem the right way—just by assessing the problem statement. This approach was created by FAANG hiring managers to help us prepare for the typical rounds of interviews at major tech companies like Apple, Google, Meta, Microsoft, and Amazon.

By the end of this module, we'll have the skills we need to unlock even the most challenging questions, grok the coding interview, and level up our career with confidence.

Coding Interview Patterns

# Statement
Given the head of a singly linked list, reorder the list as if it were folded on itself. For example, if the list is represented as follows:


$L_{0}$ → $L_{1}$ → $L_{2}$  → … → $L_{n-2}$ → $L_{n-1}$ → $L_{n}$
​

This is how you’ll reorder it:

$L_{0}$ → $L_{n}$ → $L_{1}$ → $L_{n - 1}$ → $L_{2}$ → $L_{n - 2}$ → … 

You don’t need to modify the values in the list’s nodes; only the links between nodes need to be changed.

**Constraints:**

* The range of number of nodes in the list is $[1, 500]$.
 * $-5000 \leq$ `Node.value` $\leq 5000$

# Examples

Reorder List

Statement