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

Ace the Java Coding Interview

This module teaches us the underlying patterns behind common coding interview questions. By learning these essential patterns, we'll be able to assess the problem statement and unpack and answer any problem the right way. This approach was created by FAANG’s 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 linked list, determine whether the list contains a cycle. A cycle exists if a node in the list can be revisited by continuously following the `next` pointers. Return TRUE if a cycle is present; otherwise, return FALSE.

**Constraints:**

Let `n` be the number of nodes in a linked list.

- $0\leq$ `n` $\leq500$
- $-10^5 \leq$ `Node.value` $\leq 10^5$





# Examples






Try to solve the Linked List Cycle problem.