Leetcode | 387. First Unique Character in a String | Java Solution
6:37
YouTubeDeveloper Docs
Leetcode | 387. First Unique Character in a String | Java Solution
This video has the Problem Statement, Solution Walk-through and Code for the Leetcode Question 387. First Unique Character in a String, with Time Complexity of O(n) and Space Complexity of O(n). [Developer Docs] Leetcode Solutions Playlist: https://www.youtube.com/playlist?list=PLoDervMHdCDJPh4z8dx6PIq5aee8yxV5C 387. First Unique Character in a ...
2.8K viewsAug 20, 2022
LeetCode Solutions
70 Leetcode problems in 5+ hours (every data structure) (full tutorial)
5:27:20
70 Leetcode problems in 5+ hours (every data structure) (full tutorial)
YouTubestoney codes
1.5M viewsAug 31, 2024
The ULTIMATE LeetCode Guide | Smartest Way to Solve, Practice & Master Coding Interviews 🔥
13:50
The ULTIMATE LeetCode Guide | Smartest Way to Solve, Practice & Master Coding Interviews 🔥
YouTubePrince Singh
1.5K views6 months ago
Longest Substring Without Repeating Characters LeetCode 3 - 3 ways to solve like a pro
24:42
Longest Substring Without Repeating Characters LeetCode 3 - 3 ways to solve like a pro
YouTubeCodingNinja
56.9K viewsMar 8, 2024
Top videos
02| LeetCode 387 - First Unique Character in a String | Java | Easy | Part-1
7:24
02| LeetCode 387 - First Unique Character in a String | Java | Easy | Part-1
YouTubeDe-codeX
1 week ago
First Unique Character in a String | LeetCode problem 387
9:57
First Unique Character in a String | LeetCode problem 387
YouTubeTechnosage
26.3K viewsNov 21, 2022
LeetCode Problem: 387. First Unique Character in a String | Java Solution
15:52
LeetCode Problem: 387. First Unique Character in a String | Java Solution
YouTubeCode for Interview
1.7K viewsApr 13, 2024
LeetCode Interview Questions
3 LeetCode Questions That EVERY Interview Asks | Arrays in DSA
1:14:01
3 LeetCode Questions That EVERY Interview Asks | Arrays in DSA
YouTubeJenny's Lectures CS IT
2.9K views1 month ago
12. Students and Examinations | SQL Leetcode | SQL interview Questions and Answers
10:40
12. Students and Examinations | SQL Leetcode | SQL interview Questions and Answers
YouTubeStart Practicing
18.3K viewsMar 2, 2024
14. Confirmation Rate Leetcode | SQL Interview Questions and Answers
11:32
14. Confirmation Rate Leetcode | SQL Interview Questions and Answers
YouTubeStart Practicing
13.1K viewsMar 11, 2024
02| LeetCode 387 - First Unique Character in a String | Java | Easy | Part-1
7:24
02| LeetCode 387 - First Unique Character in a String | Java | Easy | Part-1
1 week ago
YouTubeDe-codeX
First Unique Character in a String | LeetCode problem 387
9:57
First Unique Character in a String | LeetCode problem 387
26.3K viewsNov 21, 2022
YouTubeTechnosage
LeetCode Problem: 387. First Unique Character in a String | Java Solution
15:52
LeetCode Problem: 387. First Unique Character in a String | Java Solution
1.7K viewsApr 13, 2024
YouTubeCode for Interview
First unique character in a string Java | Leetcode 387
13:26
First unique character in a string Java | Leetcode 387
606 viewsMay 29, 2022
YouTubeJoey'sTech
LeetCode 387 | First Unique Character in a String | String, Counting | Java
3:20
LeetCode 387 | First Unique Character in a String | String, Counting | Java
133 viewsSep 6, 2021
YouTubeSleepy Cracker
First Unique Character in a String - LeetCode 387 | JAVA
6:45
First Unique Character in a String - LeetCode 387 | JAVA
29 views8 months ago
YouTubeE-Leet Coding
LeetCode 387, "First Unique Character in a String"
0:57
LeetCode 387, "First Unique Character in a String"
980 views8 months ago
YouTubeMastering Programming
1:22
First Unique Character ⚡ 2 Easy Methods | LeetCode 387 #dsa #shorts #viral #explore #java #coding
7 views3 weeks ago
YouTubeJust Coding - Tamil
17:21
Leetcode 387: First Unique Character in a String | Optimized Solution
235 viewsApr 13, 2025
YouTubeMohit Chhabra
18:47
LeetCode 387: First Unique Character (HashMap & Queue) | DSA Queue Series
44 views4 months ago
YouTubeAlgoXploration
First Unique character in string| LeetCode 387 (C++, Java, Python) | May LeetCoding Day 5
8:45
Find in video from 07:14Java Implementation
First Unique character in string| LeetCode 387 (C++, Java, Python) …
11.8K viewsMay 5, 2020
YouTubeKnowledge Center
5:18
👉 Google Amazon Ask This! 🔥 First Non-Repeating Character | LeetCode 387 Explained
14 views2 months ago
YouTubeTriCodes
11:23
First non repeating character in a stream | Leetcode #387
73.2K viewsMar 25, 2020
YouTubeTechdose
4:45
First Unique Character in a String | Easy | Leetcode 387
6.8K viewsFeb 5, 2024
YouTubecodestorywithMIK
14:49
Leetcode 387 - First Unique Character in a String - Detailed with many solutions
2.3K viewsJan 2, 2025
YouTubeTiCungBim DSA
4:43
First Unique Character 😱 | LeetCode 387 | Easy Trick 🚀
22 views3 months ago
YouTubeLearn With Abhinay
1:51
Govind Pothuraju on Instagram: "Day 26/200: First Unique Character in a String – LeetCode 387 Given a string, return the index of the first non-repeating character. If it doesn’t exist, return -1. ❌ Brute force O(n²): Check frequency of each character individually. ✅ HashMap / Frequency array O(n): Count characters, then find the first unique one. ⚡ A must-know string hashing problem that builds the foundation for problems like anagrams and sliding window challenges. Follow @codewith_govind for
28.5K views7 months ago
Instagramcodewith_govind
0:14
LeetCode 387 — First Unique Character in a String 🎯#ytshorts #shorts #ytshortsindia
7 views3 months ago
YouTubeCrack-IT
6:45:47
Java Fundamentals for Beginners | Leetcode & DSA Series - Part 1
3.3K views1 week ago
YouTubeNot Your College
7:00
387. First Unique Character in a String | #10 | Hash Table Playlist #hashtable #leetcode #algorithms
1.2K viewsOct 26, 2024
YouTubeCTO Bhaiya
6:21
LeetCode 387 | First Unique Character in a String | Nidhi Chouhan
149 views7 months ago
YouTubeNidhi Chouhan
4:29
First Unique Character in a String – Most People Miss This Trick
1.2K viewsFeb 5, 2024
YouTubeCodingNinja
13:42
Longest substring without repeating chars - Java solution#leetcode
4 views2 weeks ago
YouTubeGDcademy - Coding learning platform
13:42
How to start Leetcode in 2026 ( as a Beginner ) | LeetCode Roadmap 2026
82.7K views3 months ago
YouTubeNishant Chahar
10:21
Easy explanation for Google interview question(java) / LeetCode / BST inorder- traversal
90 views1 month ago
YouTubeDaBIT
5:01
387. First Unique Character in a String || Java || Leetcode || Hindi
4.1K viewsJun 15, 2023
YouTubeCoding Sphere
2:09
Duplicate number | Java | DSA | Leetcode | Problem statement
1 week ago
YouTubeCodeWithLogic
52:14
New 21 Game | LeetCode 837 | Google | Brute force - Optimized Approach | Java Code | Developer Coder
125 views9 months ago
YouTubeDeveloper Coder
15:08
First Unique Character in a String | Leetcode 387 | C++ | Strings | Solution Explained | Jass
142 viewsJun 19, 2024
YouTubeQueued - by Jass
See more