Loop Detection: Twitter Problem | LeetCode 141 {Using Pointers}

Pubblicato il: 19 ottobre 2021
sul canale di: Chris Ibe

In this episode, we solve Cracking the Coding Interview Problem Loop Detection where we are given a linked list that might contain a loop and asked to locate the loop. We solve this in O(n) linear runtime and O(1) memory using the runner method with 2 pointers. A fast and a slow pointers.

Watch and enjoy.

My Other Channel:    / @disrupted572

Top Software/ Coding Channels:
   / @csdojo
   / kevinnaughtonjr
   / @jomatech
   / @techlead

Top Python Coding Channels:
   / @neetcode
   / @timc3406

Twitter:   / realchrisibe
Instagram:   / christopher_ibe
Facebook:   / christopher.ibeekeocha
Snapchat: @christopheribe
LinkedIn:   / christopher-ibe-ekeocha

Problem Statement:
Loop Detection: Given a linked list which might contain a loop, implement an algorithm that returns the node at the beginning of the loop (if one exists).

EXAMPLE
Input: A - B - C - D - C [the same C as earlier]
Output: C

Hints:
There are really two parts to this problem. First, detect if the linked list has a loop. Second, figure out where the loop starts.
Try the “runner” method. Using a fast and a slow pointer.

LeetCode link: https://leetcode.com/problems/linked-...

Motivation Quotes:
https://graciousquotes.com/hard-work-...
https://www.birthdaywishes.expert/har...

Amazon Link: https://www.amazon.com/Cracking-Codin...

In questa pagina del sito puoi guardare il video online Loop Detection: Twitter Problem | LeetCode 141 {Using Pointers} della durata di ore minuti seconda in buona qualità , che l'utente ha caricato Chris Ibe 19 ottobre 2021, condividi il link con amici e conoscenti, su youtube questo video è già stato visto 47 volte e gli è piaciuto 2 spettatori. Buona visione!