Google's Coding Interview Question | Reverse Array In Groups

This is google's screening interview problem asked by google. Detailed explanation of this problem in this video with O(n) time and no extra space.
Timeline :
1. Understanding Problem - 0:00 - 1:25
2. Developing Algorithm - 1:26 - 7:12
3. Code Implementation - 7:13 - 9:30

[souravparmar]

Can you explain me how the time complexity is o(n) as you are using two loops it should be i(n^2) right??

[vishaldeshpande]

very smooth explaination.keep making more such videos!!!

[chaitanyakarthik]

this was very nice, I am a complete beginner in dsa and was searching here and there for the last two hours, and believe me your video pulled me off through this...

[Chaloobolo]

Hey bro which writing pad and software you are using for writing and recording .

[brucewayne]

What's the time complexity of the program

[zeeshanfirdousi]

Indeed!, You know how to explain the questions to students in a proper way. can we connect through gmail?

[prodbyraja]

Is there any way to reduce complexity for this question

[pravinmhaske]

nice explanation, Thank you
Keep it up

[heathens]

It's N²! Can't you make it N