JAVAAID
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Forwarded from HackerRank Solutions
This tutorial ranked number 1 on Google and YouTube.so thought of sharing with you all.

If you are a competitive programmer or preparing for competitive programming or solve coding problems online then you would have come across one algorithm called prefix sum.
But most of people do know the benefit of this algorithm.

Here is the tutorial which explains why you must know prefix-sum algorithm.

https://youtu.be/scD312I7kkE
#tutorial #coding #programming #learntocode #algorithm #prefixsum #competitiveprogramming
Forwarded from VMware Workstation Pro (KGupta)
Hello Coding Lover,

In this video tutorial, I have explained the beautiful problem-solving technique called ๐—ฅ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐—ผ๐—ป and its applications.

If you can visualize this 2D image in 3D then probably you would have heard of ๐—ฅ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐—ผ๐—ป.

๐‘บ๐’๐’Ž๐’† ๐’•๐’Š๐’Ž๐’†๐’” ๐’Ž๐’‚๐’Œ๐’Š๐’๐’ˆ ๐’‚ ๐’•๐’‰๐’–๐’Ž๐’ƒ๐’๐’‚๐’Š๐’ ๐’˜๐’Š๐’๐’ ๐’•๐’‚๐’Œ๐’† ๐’Ž๐’๐’“๐’† ๐’•๐’Š๐’Ž๐’† ๐’•๐’‰๐’‚๐’ ๐’•๐’–๐’•๐’๐’“๐’Š๐’‚๐’ :)

๐—ก๐—ผ๐˜๐—ฒ: if you find it useful, please do not forget to like and share your feedback in comments.

https://youtu.be/Sf-LR7OI-Ww

#JAVAAID #recursion #leetcode #javaAidTutorials #programming #dataStructures #algorithms #coding #competitiveprogramming #google #java #codinginterview #problemsolving #kanahaiyaGupta #google #facebook #amazon #oracle #linkedin
Forwarded from VMware Workstation Pro (KGupta)
Have you ever thought of how ๐—ฟ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐—ผ๐—ป ๐˜„๐—ผ๐—ฟ๐—ธ๐˜€ ๐—ถ๐—ป๐˜๐—ฒ๐—ฟ๐—ป๐—ฎ๐—น๐—น๐˜†?
if not, watch this video to know the ๐—ถ๐—ป๐˜๐—ฒ๐—ฟ๐—ป๐—ฎ๐—น๐˜€ ๐—ผ๐—ณ ๐—ฟ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐—ผ๐—ป.

In this video, I have ๐—บ๐—ผ๐—ฑ๐—ถ๐—ณ๐—ถ๐—ฒ๐—ฑ ๐—ฎ ๐—ฝ๐—ฟ๐—ผ๐—ด๐—ฟ๐—ฎ๐—บ ๐—ถ๐—ป ๐˜€๐˜‚๐—ฐ๐—ต ๐—ฎ ๐˜„๐—ฎ๐˜† that it will ๐˜๐—ฒ๐—ฎ๐—ฐ๐—ต ๐˜†๐—ผ๐˜‚ ๐—ฎ๐—ฏ๐—ผ๐˜‚๐˜ ๐—ฟ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐—ผ๐—ป ๐—ถ๐—ป๐˜๐—ฒ๐—ฟ๐—ป๐—ฎ๐—น which will help you in ๐˜ƒ๐—ถ๐˜€๐˜‚๐—ฎ๐—น๐—ถ๐˜‡๐—ถ๐—ป๐—ด ๐—ฟ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐˜ƒ๐—ฒ ๐—ฎ๐—น๐—ด๐—ผ๐—ฟ๐—ถ๐˜๐—ต๐—บ๐˜€.

Here are the outlines for easy navigation:-
๐Ÿ‘‰ Recursion Flow Chart
๐Ÿ‘‰ Recursion Execution Flow
๐Ÿ‘‰ Tree Visualization
๐Ÿ‘‰ Memory Visualization
๐Ÿ‘‰ Demo

๐—ก๐—ผ๐˜๐—ฒ: if you find it useful, please do not forget to like and share your feedback in comments.

https://lnkd.in/fnEEdKs

#JAVAAID #recursion-visualization #leetcode #javaAidTutorials #programming #recurion-basics #recursion-tutorial #algorithms #coding #competitiveprogramming #google #java #codinginterview #problemsolving #kanahaiyaGupta #google #facebook #amazon #oracle #linkedin
Forwarded from HackerRank Solutions
Hey Coding Lover,

This is the next tutorial in our recursion series. So far, we have learnt how ๐—ฟ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐—ผ๐—ป ๐˜„๐—ผ๐—ฟ๐—ธ๐˜€ ๐—ถ๐—ป๐˜๐—ฒ๐—ฟ๐—ป๐—ฎ๐—น๐—น๐˜†?

Now it is time to dig deeper and understand ๐—ฟ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐—ผ๐—ป ๐˜๐˜†๐—ฝ๐—ฒ๐˜€ ๐—ฎ๐—ป๐—ฑ ๐—ฑ๐—ถ๐—ณ๐—ณ๐—ฒ๐—ฟ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—ฏ๐—ฒ๐˜๐˜„๐—ฒ๐—ฒ๐—ป ๐—ถ๐˜.

In this video, I have tried my best to explain the ๐—ต๐—ฒ๐—ฎ๐—ฑ ๐—ฎ๐—ป๐—ฑ ๐˜๐—ฎ๐—ถ๐—น ๐—ฟ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐—ผ๐—ป ๐—ฎ๐—ป๐—ฑ ๐˜๐—ต๐—ฒ ๐—ฑ๐—ถ๐—ณ๐—ณ๐—ฒ๐—ฟ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—ฏ๐—ฒ๐˜๐˜„๐—ฒ๐—ฒ๐—ป ๐—ถ๐˜, ๐˜ƒ๐—ถ๐—ฎ ๐—ฎ๐—ป๐—ถ๐—บ๐—ฎ๐˜๐—ถ๐—ผ๐—ป.
which will help you in ๐˜ƒ๐—ถ๐˜€๐˜‚๐—ฎ๐—น๐—ถ๐˜‡๐—ถ๐—ป๐—ด ๐—ฟ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐˜ƒ๐—ฒ ๐—ฎ๐—น๐—ด๐—ผ๐—ฟ๐—ถ๐˜๐—ต๐—บ๐˜€.
Here are the outlines for easy navigation:-

๐Ÿ‘‰ [๐Ÿฌ๐Ÿฌ:๐Ÿฐ๐Ÿญ] ๐—›๐—ฒ๐—ฎ๐—ฑ ๐—ฅ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐—ผ๐—ป
๐Ÿ‘‰ [๐Ÿฌ๐Ÿฒ:๐Ÿญ๐Ÿฐ] ๐—ง๐—ฎ๐—ถ๐—น ๐—ฅ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐—ผ๐—ป
๐Ÿ‘‰ [๐Ÿญ๐Ÿญ:๐Ÿฎ๐Ÿฏ] ๐—›๐—ฒ๐—ฎ๐—ฑ ๐—ฉ๐—ฆ ๐—ง๐—ฎ๐—ถ๐—น ๐—ฅ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐—ผ๐—ป
๐Ÿ‘‰ [๐Ÿญ๐Ÿฑ:๐Ÿฌ๐Ÿฎ] ๐——๐—ฒ๐—บ๐—ผ
๐Ÿ‘‰ [๐Ÿญ๐Ÿด:๐Ÿฌ๐Ÿฒ] ๐—ค๐˜‚๐—ถ๐—ฐ๐—ธ ๐—ค๐˜‚๐—ถ๐˜‡?

๐—ก๐—ผ๐˜๐—ฒ: if you find it useful, please do not forget to like and share your feedback in comments.
https://youtu.be/lG6HxO7cDRw
#JAVAAID #headrecursion #tailrecursion #headvstailrecursion #leetcode #javaAidTutorials #programming #recursion-basics #recursion-tutorial #algorithms #coding #competitiveprogramming #google #java #problemsolving #kanahaiyaGupta
Forwarded from HackerRank Solutions
Hi Coding Lover,

Here is one more tutorial which will ๐—ฒ๐—ป๐—ต๐—ฎ๐—ป๐—ฐ๐—ฒ ๐˜†๐—ผ๐˜‚๐—ฟ ๐—ฑ๐—ฒ๐—ฏ๐˜‚๐—ด๐—ด๐—ถ๐—ป๐—ด ๐˜€๐—ธ๐—ถ๐—น๐—น๐˜€.

Today, I have explained how to ๐˜ƒ๐—ถ๐˜€๐˜‚๐—ฎ๐—น๐—ถ๐˜‡๐—ฒ ๐˜†๐—ผ๐˜‚๐—ฟ ๐—ฐ๐—ผ๐—ฑ๐—ฒ ๐—ฒ๐˜…๐—ฒ๐—ฐ๐˜‚๐˜๐—ถ๐—ผ๐—ป ๐—ณ๐—น๐—ผ๐˜„ and get help from others if you stuck.

It supports most of the language like ๐—–, ๐—–++, ๐—๐—ฎ๐˜ƒ๐—ฎ, ๐—๐—ฎ๐˜ƒ๐—ฎ๐—ฆ๐—ฐ๐—ฟ๐—ถ๐—ฝ๐˜, ๐—ง๐˜†๐—ฝ๐—ฒ๐—ฆ๐—ฐ๐—ฟ๐—ถ๐—ฝ๐˜, ๐—ฅ๐˜‚๐—ฏ๐˜† etc.

๐—ก๐—ผ๐˜๐—ฒ: if you find it useful, please do not forget to like and share your feedback in comments.

https://youtu.be/TRMKJucB3B8

#JAVAAID #leetcode #javaAidTutorials #programming #recursion-basics #recursion-tutorial #algorithms #coding #competitiveprogramming #google #java #problemsolving #kanahaiyaGupta #pythontutor #execution
Forwarded from VMware Workstation Pro (KGupta)
Hi Coding Lover,

In this tutorial, I have covered the most common dynamic programming interview question ๐—Ÿ๐—ผ๐—ป๐—ด๐—ฒ๐˜€๐˜ ๐—–๐—ผ๐—บ๐—บ๐—ผ๐—ป ๐—ฆ๐˜‚๐—ฏ๐˜€๐˜๐—ฟ๐—ถ๐—ป๐—ด which is usually asked in product-based MNC's.

Here I have explained the ๐—ณ๐—ผ๐˜‚๐—ฟ ๐—ฑ๐—ถ๐—ณ๐—ณ๐—ฒ๐—ฟ๐—ฒ๐—ป๐˜ ๐˜„๐—ฎ๐˜†๐˜€ ๐˜๐—ผ ๐˜€๐—ผ๐—น๐˜ƒ๐—ฒ ๐˜๐—ต๐—ถ๐˜€ ๐—ฝ๐—ฟ๐—ผ๐—ฏ๐—น๐—ฒ๐—บ and below are the outlines-

๐—ง๐—ฎ๐—ฏ๐—น๐—ฒ ๐—ผ๐—ณ ๐—–๐—ผ๐—ป๐˜๐—ฒ๐—ป๐˜:
๐Ÿ‘‰[00:15] Problem statement
๐Ÿ‘‰[02:17] Longest common substring
๐Ÿ‘‰[03:00] Algorithm
๐Ÿ‘‰[06:54] Recurrence relation
๐Ÿ‘‰[08:00] Recursive solution
๐Ÿ‘‰[09:42] Recurrence tree
๐Ÿ‘‰[11:52] Top-down approach with memoization
๐Ÿ‘‰[13:30] Bottom-up approach/ DP solution
๐Ÿ‘‰[19:20] Demo

๐—ก๐—ผ๐˜๐—ฒ: if you find it useful, please do not forget to like and share your feedback in comments.

https://lnkd.in/faC5uGu

#JAVAAID #lcs #longestcommonsubstring #leetcode #javaAidTutorials #programming #algorithms #coding #competitiveprogramming #google #java #problemsolving #kanahaiyaGupta
Hi Coding Lover,
In this tutorial, I have covered one more common dynamic programming interview question ๐—Ÿ๐—ผ๐—ป๐—ด๐—ฒ๐˜€๐˜ ๐—–๐—ผ๐—บ๐—บ๐—ผ๐—ป ๐—ฆ๐˜‚๐—ฏ๐˜€๐—ฒ๐—พ๐˜‚๐—ฒ๐—ป๐—ฐ๐—ฒ which is also asked in a lot of product-based MNC's.

Here I have explained the ๐—ณ๐—ผ๐˜‚๐—ฟ ๐—ฑ๐—ถ๐—ณ๐—ณ๐—ฒ๐—ฟ๐—ฒ๐—ป๐˜ ๐˜„๐—ฎ๐˜†๐˜€ ๐˜๐—ผ ๐˜€๐—ผ๐—น๐˜ƒ๐—ฒ ๐˜๐—ต๐—ถ๐˜€ ๐—ฝ๐—ฟ๐—ผ๐—ฏ๐—น๐—ฒ๐—บ and below are the outlines-

๐—ง๐—ฎ๐—ฏ๐—น๐—ฒ ๐—ผ๐—ณ ๐—–๐—ผ๐—ป๐˜๐—ฒ๐—ป๐˜:
๐Ÿ‘‰[00:10] Problem statement
๐Ÿ‘‰[02:44] Longest common Subsequence
๐Ÿ‘‰[03:39] Algorithm
๐Ÿ‘‰[07:06] Recurrence relation
๐Ÿ‘‰[09:35] Recursive solution
๐Ÿ‘‰[09:42] Recurrence tree
๐Ÿ‘‰[13:22] Top-down approach with memoization
๐Ÿ‘‰[14:51] Bottom-up approach/ DP solution (using 2-D array)
๐Ÿ‘‰[25:10] Bottom-up approach/ DP solution (using 1-D array)
๐Ÿ‘‰[30:11] Demo

๐—ก๐—ผ๐˜๐—ฒ: if you find it useful, please do not forget to like and share your feedback in comments.

https://lnkd.in/fNveH-Y

#JAVAAID #lcs #longestcommonsubsequence #leetcode #javaAidTutorials #programming #algorithms #coding #competitiveprogramming #google #java #problemsolving #kanahaiyaGupta
Forwarded from HackerRank Solutions
Hey Coding Lover,

In this video, I have explained the ๐—ผ๐—ฝ๐˜๐—ถ๐—บ๐—ถ๐˜‡๐—ฒ๐—ฑ ๐˜„๐—ฎ๐˜† ๐˜๐—ผ ๐˜€๐—ผ๐—น๐˜ƒ๐—ฒ ๐˜‚๐˜๐—ผ๐—ฝ๐—ถ๐—ฎ๐—ป ๐˜๐—ฟ๐—ฒ๐—ฒ ๐—ต๐—ฎ๐—ฐ๐—ธ๐—ฒ๐—ฟ๐—ฟ๐—ฎ๐—ป๐—ธ ๐—ฝ๐—ฟ๐—ผ๐—ฏ๐—น๐—ฒ๐—บ ๐—ถ๐—ป ๐—ผ๐—ป๐—ฒ ๐—น๐—ถ๐—ป๐—ฒ.

This hackerrank problem is a part of Practice | Algorithms| Implementation | utopian tree hackerrank challenge.

๐—ก๐—ผ๐˜๐—ฒ: if you find it useful, please do not forget to like and share your feedback in comments.

https://youtu.be/C0YaIr8_mQU

#utopiantree #JAVAAID #HackerRankSolutions #implementation #HackerRank #JavaAidTutorials #programming #DataStructures #algorithms #coding #competitiveprogramming #java #codinginterview #problemsolving #KanahaiyaGupta #hackerrankchallenges
Forwarded from HackerRank Solutions
Hey Coding Lover,

In this video, I have solved hackerrank ๐—ฅ๐—ฒ๐—ฝ๐—ฒ๐—ฎ๐˜๐—ฒ๐—ฑ ๐—ฆ๐˜๐—ฟ๐—ถ๐—ป๐—ด ๐—ฝ๐—ฟ๐—ผ๐—ฏ๐—น๐—ฒ๐—บ ๐˜„๐—ถ๐˜๐—ต๐—ถ๐—ป ๐—ฎ ๐—ด๐—ถ๐˜ƒ๐—ฒ๐—ป ๐˜๐—ถ๐—บ๐—ฒ ๐—น๐—ถ๐—บ๐—ถ๐˜..

This hackerrank problem is a part of Practice | Algorithms| Implementation | Repeated String hackerrank challenge.

Note: if you find it useful, please do not forget to like and share your feedback in the comments.


https://youtu.be/d5xLkTvJDWY

#repeatedstring #JAVAAID #HackerRankSolutions #implementation #HackerRank #JavaAidTutorials #programming #DataStructures #algorithms #coding #competitiveprogramming #java #codinginterview #problemsolving #KanahaiyaGupta #hackerrankchallenges
Forwarded from VMware Workstation Pro (KGupta)
Sharing my secrets in this video, ๐—ต๐—ผ๐˜„ ๐—œ ๐—ฟ๐—ฒ๐˜ƒ๐—ถ๐˜€๐—ฒ ๐—ฑ๐—ฎ๐˜๐—ฎ ๐˜€๐˜๐—ฟ๐˜‚๐—ฐ๐˜๐˜‚๐—ฟ๐—ฒ๐˜€ ๐—ฎ๐—ป๐—ฑ ๐—ฎ๐—น๐—ด๐—ผ๐—ฟ๐—ถ๐˜๐—ต๐—บ๐˜€ ๐—ท๐˜‚๐˜€๐˜ ๐—ถ๐—ป ๐Ÿฑ ๐—บ๐—ถ๐—ป๐˜‚๐˜๐—ฒ๐˜€ ๐—ฏ๐—ฒ๐—ณ๐—ผ๐—ฟ๐—ฒ ๐—บ๐˜† ๐—ฐ๐—ผ๐—ฑ๐—ถ๐—ป๐—ด ๐—œ๐—ป๐˜๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฒ๐˜„.

I hope it may help someone.

https://lnkd.in/dZyJnkq

If you find it useful, please like comment and share.

#mindmapsforcodinginterview #JAVAAID #JavaAidTutorials #programming #DataStructures #algorithms #coding #competitiveprogramming #java #codinginterview #problemsolving #KanahaiyaGupta
Forwarded from VMware Workstation Pro (KGupta)
๐— ๐—ฎ๐˜€๐˜๐—ฒ๐—ฟ ๐˜๐—ต๐—ฒ ๐—ฎ๐—ฟ๐˜ ๐—ผ๐—ณ ๐—ฟ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐˜€๐—ถ๐—ผ๐—ป ๐—ท๐˜‚๐˜€๐˜ ๐—ถ๐—ป ๐—ฎ๐—ป ๐—ต๐—ผ๐˜‚๐—ฟ.
A simple and practical approach with examples to master recursion.

๐—ฝ๐—น๐—ฎ๐˜†๐—น๐—ถ๐˜€๐˜:- https://www.youtube.com/watch?v=Sf-LR7OI-Ww&list=PLSIpQf0NbcCk4be21WNhPHrHMSxFndZtB&ab_channel=JAVAAID-CodingInterviewPreparation

#datastructures #algorithms #codinginterview #programming #codinginterview #competitiveprogramming #codechef #coding #problemsolving #recursion
Forwarded from VMware Workstation Pro (KGupta)
Sharing my secrets in this video, ๐—ต๐—ผ๐˜„ ๐—œ ๐—ฟ๐—ฒ๐˜ƒ๐—ถ๐˜€๐—ฒ ๐—ฑ๐—ฎ๐˜๐—ฎ ๐˜€๐˜๐—ฟ๐˜‚๐—ฐ๐˜๐˜‚๐—ฟ๐—ฒ๐˜€ ๐—ฎ๐—ป๐—ฑ ๐—ฎ๐—น๐—ด๐—ผ๐—ฟ๐—ถ๐˜๐—ต๐—บ๐˜€ ๐—ท๐˜‚๐˜€๐˜ ๐—ถ๐—ป ๐Ÿฑ ๐—บ๐—ถ๐—ป๐˜‚๐˜๐—ฒ๐˜€ ๐—ฏ๐—ฒ๐—ณ๐—ผ๐—ฟ๐—ฒ ๐—บ๐˜† ๐—ฐ๐—ผ๐—ฑ๐—ถ๐—ป๐—ด ๐—œ๐—ป๐˜๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฒ๐˜„.

I hope it may help someone.

https://lnkd.in/dZyJnkq

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