Arrays Left Rotation HackerRank Solution

Arrays left rotation - In this video, I have explained Arrays left rotation hackerrank solution algorithm.
hackerrank Arrays left rotation problem can be solved by using extra array. This hackerrank problem is a part of Practice | Tutorials | Cracking The Coding Interview | Arrays left rotation hackerrank challenge.

For simplicity, I have divided this hackerrank tutorial into 3 parts.
[00:00] Understanding the problem statement.
[02:31] Building the logic to solve the problem.
[09:00] Coding the logic using java (you can use your own preferred programming language).

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[JavaAidTutorials]

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[sunilpatra]

Wow, Amazed. That was quick. Thank you

[igorbarros]

I just wanna say thank you, man! I really appreciate your efforts creating this videos with explanations.

[perihanhill]

Thank you so much! I missed % in my program and was trying to understand what's going on. Please share more codes! :)

[suchitragiri]

yeah!! i got your point
Thank you so muchh sir, i solved this problem using this logic but still i confused so, i decided to watching your video.
Now i know the logic which is behind the code. 😊

[dilipshukla]

Awesome observation and explanation!!!! I am happy to come acrossed this post on first day of the new year !!!! Thanks for sharing!!!

[sushmitgoswami]

is the same thing will work when rotation d is greater than array lenght?

[mihirk]

Excellent explanation. Very easy to understand. Thanks very much for providing this.

[vrashankraom]

By vector u can solve like this
vector<int> rotLeft(vector<int> a, int d) {
vector<int>arr;
for(int j=d;j<a.size();j++){
arr.push_back(a[j]);
}
for(int i=0;i<d;i++){
arr.push_back(a[i]);
}

return arr;
}

[srikarchatla]

awesome bro you were just very clear about this i loved it

[org]

Where did you put the input?
I did exactly the same as you did but I dont have the array's elements..

[FirMizzZ]

thanks. your channel is the best explanation. keep doing.

[vigneshhendrix]

Just Vera Level Bro!✨🔥. Expecting more !✨

[HugoAyala]

Perfect solution and formula explanation such a clean solution

[munazzainamulhaque]

Such a nice explanation ...Plz make more videos on Interview Preparation Kit

[ketanlalcheta]

Can we avoid additional space of new array and sort in place from existing array ?

[arshneetkathuria]

this logic is not working for rotation which are greater than length of kindly tell any other optimal solution.

[SoupTurtle]

Thanks for showing me an unique method of solving this

[shaone_syem]

One other solution that crossed my mind is using a linked list so that we add the first d elements at the end while also moving the head. Complexity O(d).

[DharmendraKumar-utbn]

What if d=1, then RR will be more complex, right ?