Find the Missing and Repeating Number | 4 Approaches 🔥

Description

Problem Link: https://bit.ly/3vK0LT4

Notes/C++/Java/Python codes: https://takeuforward.org/data-structure/find-the-repeating-and-missing-numbers/

We have solved the problem, and we have gone from brute force and ended with the most optimal solution. Every approach's code has been written in the video itself. Also, we have covered the algorithm with intuition.

Full Course: https://bit.ly/tufA2ZYt

You can follow me across social media, all my handles are below:

Linkedin/Instagram/Telegram: https://linktr.ee/takeUforward

0:00 Introduction of Course

00:20 Problem Statement

01:14 Brute Force approach

02:08 Pseudocode

03:18 Complexity

03:47 Better approach (Hashing)

05:41 Code

06:58 Complexity

07:28 Optimal approach (Maths + XOR)

08:01 Solution-01 (Maths)

08:08 Intuition + Approach

14:54 Code

19:17 Complexity

19:55 Solution-02 (XOR)

20:15 Intuition + Approach

31:11 Code

41:24 Complexity

Designed under CodEX ©2025 Nexus

Designed under CodEX ©2025 Nexus

Designed under CodEX ©2025 Nexus