Two Pointers | Advanced Problem Solving in Arrays | Lecture 18 | Java and DSA Foundation

Publicado em: 21 Novembro 2022
no canal de: College Wallah

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We are almost towards the end of the arrays-based practice problems and kudos to the efforts you are putting into this learning journey!
Let us move ahead with the same zeal and keep practicing all the concepts and problems taught till now.
In this class, Manvi mam will cover a bit of advanced implementation of arrays i.e. problems based on two pointers approach.
If you are aiming for a good internship or placement, this is surely going to help you.
See you in the class!

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TIME STAMPS:
00:00 Introduction
00:33 Recap of the last lecture
02:39 Problems based on two pointers
03:02 Sort an array consisting of only 0s and 1s
06:13 Code
10:34 Alternate approach
21:06 Code
23:28 Dry run
27:02 In an array 'a' move all even integers at the beginning followed by all odd integers
32:03 Code
35:10 For an array 'a' sorted in non-decreasing order, return an array of squares of each number sorted in non-decreasing order
46:20 Code
51:20 Dry run
1:00:12 Summary of lecture

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