Custom Sort String - LeetCode 791 - Coding Interview Tutorial
Learn how to solve the Custom Sort String problem (LeetCode 791) efficiently! 🚀
In this video, we break down how to sort a string based on a custom defined order using Frequency Maps. This is a common string manipulation problem that frequently appears in technical interviews.
We cover:
✅ Understanding the custom order requirement
✅ Visualizing the sorting process
✅ Using a Hash Map for O(N) time complexity
✅ Handling characters not present in the order string
Whether you are a beginner or preparing for FAANG interviews, this step-by-step guide will help you master custom sorting logic.
#leetcode #python #codinginterview #algorithms #datastructures #programming #tech
Chapters:
00:00 - Custom Sort String - Introduction
00:16 - The Problem Statement
00:39 - Visualizing the Goal
01:04 - Core Strategy: Frequency Map
01:25 - Step 1: Count Frequencies in S
01:45 - Step 2: Build String from Order
02:06 - Step 2: Continuing the Loop
02:25 - Step 3: Append Leftovers
02:45 - Complexity Analysis
03:11 - Implementation Logic
03:32 - Outro
🔗 Stay Connected:
▶️ YouTube: / @thecodelucky
📱 Instagram: / thecodelucky
📘 Facebook: / codeluckyfb
🌐 Website: https://codelucky.com
⭐ Support us by Liking, Subscribing, and Sharing!
💬 Drop your questions in the comments below
🔔 Hit the notification bell to never miss an update
#CodeLucky
Sur cette page du site, vous pouvez voir la vidéo en ligne Custom Sort String - LeetCode 791 - Coding Interview Tutorial durée heure minute seconde en bonne qualité , qui a été Téléchargé par l'utilisateur CodeLucky 09 janvier 2026, Partagez le lien avec vos amis et connaissances, sur youtube cette vidéo a déjà été regardée 13 fois et il a aimé 0 téléspectateurs. Bon visionnage!
