First Missing Positive - LeetCode #41 - Python, JavaScript, Java, C++

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First Missing Positive with Python, JavaScript, Java and C++, LeetCode #41!

In this video, we tackle the "First Missing Positive" problem, a common challenge in algorithm and coding interviews. Learn step-by-step how to find the smallest missing positive integer in an unsorted array efficiently. We cover the key concepts, provide a detailed code walkthrough, and discuss optimal strategies to solve the "First Missing Positive" problem. Whether you’re preparing for coding interviews or just looking to improve your problem-solving skills, this video is a must-watch. Don’t forget to like, comment, and subscribe for more content on solving algorithmic problems!

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■ Timeline
0:04 Explain basic idea for solution 1
2:43 Coding for solution 1
4:06 Time Complexity and Space Complexity for solution 1
4:27 Explain basic idea for solution 2
7:28 Coding for solution 2
9:49 Time Complexity and Space Complexity for solution 2

■ Blind 75 LeetCode questions

■ Twitter

■ Problem Link

■ Codes in the video
- Python, JavaScript, Java and C++ are available from here.

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#leetcode #python #interview
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but sorting is not O(n) so you can't sort. If you go over each element and put it in a new array according to it's index, so value 4 goes to newArr[4] and then go through the array and the first position you don't have a value in the array is your solution

GiladMadar
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