I have decided to solve all 450 questions that Love Babbar had shared on his YouTube channel.
Here is a collection of all my playlists, do check them out:
https://studio.youtube.com/channel/UCDE2tF6E_isqQRJ0ClqnTkg/playlists
Please share the video with your friends and subscribe to my channel!.
More videos to follow on the same topic.
Scroll down to watch the videos is sequential manner.
Watch the videos till the end guys!.
Stay tuned.
Thanks
Playlist link:
Questions link:
Part 1:
part 2 is now uploaded:
part 3 is uploaded now, sorry for being late today.
Part 4 is uploaded. Please let me know if you are able to understand.
Part 5 is uploaded:
Part 6 is uploaded now:
Part 7 is uploaded:
Part 8 is uploaded:
Part 9 is uploaded. Matrix problems begins today!.
https://youtu.be/14Sy9ENqVLI
Part 10 is uploaded now. Check it out!.
https://youtu.be/jkUQW-BvhFs
Part 11 is uploaded. Matrix is completed.
Next will be strings!.
https://youtu.be/suGaX9U56i8
Part 12 is uploaded. Strings has started.
https://youtu.be/lV93-n_QzJc
Part 13 is uploaded. Sorry for being late today.
I was busy with college stuff.
https://youtu.be/uFptnGp_mu0
Part 14 is uploaded now.
https://youtu.be/ky9U3UAWhow
Part 15 is uploaded now.
https://youtu.be/xvjttny2cA4
Part 16 is uploaded.
There was a net error could not correct code in the video.
The corrected code is here:
Watch the video completely guys.
https://youtu.be/PYN9auuqyLU
Part 17 is uploaded.
If you want me to show the coding part let me know i shall make a separate video.
I want you guys to try it first.
https://youtu.be/IlfBcczfcK4
Part 18 is uploaded:
https://youtu.be/HesIpSP61fU
Part 19 is uploaded:
https://youtu.be/QVEIcsqO6FU
Part 20 is uploaded guys.
All the solutions can be found in the video description.
Thanks for supporting me so far.
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https://youtu.be/U9QqK2WagpQ
Part 21 is uploaded guys.
https://youtu.be/vwCVjdcrUmc
Part 22 is uploaded.
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Thanks.
https://youtu.be/-dI1BtVmCpM
Part 23 is uploaded guys.
Watch the video till the end.
https://youtu.be/HVYDN_3dh70
Part 24 is uploaded.
Strings is almost done.
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Watch till the end!!.
https://youtu.be/dSwy23O7uqI
Part 25 is uploaded guys.
We have completed strings.
Thanks for sticking around so far.
Please continue to do so.
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Part 26 is uploaded
sorting and searching has started.
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https://youtu.be/F0aEELBaCqk
Part 27 is uploaded.
Try to code the last problem by yourself first and then check my solution for reference.
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https://youtu.be/ityTI0EbWwg
Part 28 is uploaded.
Last problem has 6 different approaches.
I suggest you to go and find out atleast 2 to 3 more.
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https://youtu.be/_HPJIHe7xA0
Part 29 is uploaded.
First question is asked in interviews frequently.
That’s what everyone says.
Check it out!.
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https://youtu.be/R6PIy9RjdHM
Part 30 is uploaded.
Try the homework problem by referring to the easier version of the same concept(2sum,3sum)
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https://youtu.be/s2iuUuDX1BI
Part 31 is uploaded.
For the last problem i shall tell the O(1) space approach in the next video.
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https://youtu.be/xI1TEbJEDRs
Part 32 is uploaded.
Watch the video that i have mentioned in the description box.
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https://youtu.be/99U6QDWgF7g
Part 33 is uploaded.
You should know how to implement certain functions without stl.
IN Interviews(technical) it will help you a lot.
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https://youtu.be/3zImAyVQlTQ
Part 34 is uploaded.
Check if the solutions are correct for all test cases.
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https://youtu.be/zSowR7ARTtQ
Part 35 is uploaded.
Help needed please watch video till the end.
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https://youtu.be/beZhSQfslE4
Part 36 is uploaded.
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Please learn job scheduling problem for tomorrow.
https://youtu.be/7htmBk8l5Bs
Part 37 is uploaded.
Interview favourite must watch.
Sorry for only one question.
I hope you corrected my mistakes. Please watch complete video.
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https://youtu.be/FXmWu_KwPK0
Part 38 is uploaded.
Think slowly and calmly for this problem. Try different approaches.
Please watch the video for longer guys.
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https://youtu.be/6goC47cUPvI
Part 39 is uploaded.
Please solve the problems with concentration as it will help you solve any kind of such problems later on.
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https://youtu.be/bDTufsj1Cic
Part 40 is uploaded.
Did we do a similar problem??. Refresh yourself
Like the video, share it with all your friends and please subscribe.
https://youtu.be/S02aw1VwP-c
Part 41 is uploaded.
Please think if we need to think in a complicated way or not for this problem.
Try other approaches as well.
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Thanks
https://youtu.be/meh3V0JYaTw
Part 42 is uploaded.
Let me know if I have missed any question.
Next is link list.
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https://youtu.be/W-FjyHDE_bg
Linked list has started!!.
Part 43 is uploaded.
Please watch the full video and correct my diagram explanation.
Dont forget to try out the homework problem!.
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https://youtu.be/QPjSXZ2tr6U
Part 44 is uploaded.
Small revision was done. Please solve the questions parallelly.
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https://youtu.be/IVi5QxGhoKE
Part 45 is uploaded.
Easy level problems.
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https://youtu.be/0sz8JkZxXZI
Part 46 is uploaded.
Make your concepts crystal clear.
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https://youtu.be/GmxyCjELpUc
Part 47 is uploaded.
Solving problems efficiently is the key to success in interviews
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https://youtu.be/J1vgrroDWAQ
Part 48 is uploaded.
Practice these king of problems with concentration.
I have given you a direction. Go forward with it.
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https://youtu.be/C5dh8kXQOT4
Part 49 is uploaded.
Space optimization is the key in technical interviews.
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https://youtu.be/o3EjLS46hoY
Part 50 is uploaded.
These are some typical problems. Try them by yourself first.
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https://youtu.be/nGf-g-q01pw
Part 51 is uploaded.
Good revision of concepts. Try them by yourself first.
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https://youtu.be/FSjoZDs2ces
Part 52 is uploaded.
Easy concept just requires a bit of concentration. Try it by yourself first.
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https://youtu.be/BY5B2iI4IOA
Part 53 is uploaded.
I thought i could do the last one, but then realized I would rush it.
So tomorrow we shall do it. But you can always do it before me!!.
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https://youtu.be/0UX5_mXzrC4
Part 54 is uploaded.
Some new type of problem(I had never seen before). Simple only. Just focus!.
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https://youtu.be/xsU9ppiSNto
Part 55 is uploaded.
One solution on gfg is wrong in my opinion. Watch the video to find out more.
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https://youtu.be/bh9xAIQ-XdI
Part 56 is uploaded.
I dont know how to use linked list for one question.Help me out!. Watch full video.
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https://youtu.be/rHy02dA-2MY
Part 57 is uploaded.
Next is Binary tress. Stay tuned!.
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https://youtu.be/eslujn63br8
Part 58 is uploaded.
Binary trees has started.
Recursion can be your best friend over here!.
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https://youtu.be/FcYYloDkCwI
Part 59 is uploaded.
Easy problem.
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https://youtu.be/3cQ5PWOiMcA
Part 60 is uploaded.
Basics of data structures is a must to solve such kind of problems.
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https://youtu.be/wqvXp2C4Da4
Part 61 is uploaded.
Simple typical problem.
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https://youtu.be/e57zxp4sTxM
Part 62 is uploaded.
Easy problems. Get them in the first try!.
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https://youtu.be/hr8oC774IgY
Part 63 is uploaded.
Use your previous experiences to solve the problems.
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https://youtu.be/dPb3uHGsCZw
Part 64 is uploaded.
Did a small recap of yesterdays problem. Today’s problem is quite interesting. try it by yourself once!.
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https://youtu.be/6qJgWSpoO-M
Part 65 is uploaded.
Simple concept. You need to visualize the tree in 3D!
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https://youtu.be/-yHJPoJFuOs
Part 66 is uploaded.
All problems just require you to know basics of programming and recursion.
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https://youtu.be/6h6NSjaHemw
Part 67 is uploaded.
Recursion is your best friend!.
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https://youtu.be/oVTirsxFSfg
Part 68 is uploaded.
Everything can be solved recursively!!.Power of recursion!.
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https://youtu.be/bten9ZYnHms
Part 69 is uploaded.
basic backtracking and recursion.
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https://youtu.be/SAgW-mmK3wM
Part 70 is uploaded.
I just gave you some hints. I shall tell you more in detail if needed in the upcoming videos.
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https://youtu.be/71i0waMDRo4
Part 71 is uploaded.
Some tricky problems lined up. Stay focused.
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https://youtu.be/yJ5fEotSwuY
Part 72 is uploaded.
Complex question made very easy to understand. try to dry run the code to understand completely.
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https://youtu.be/M7bWlMA54DM
Part 73 is uploaded.
This problem has lot of variations. solve all of them completely.
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https://youtu.be/iyUJhSfFHtQ
Part 74 is uploaded.
STL to the rescue!. IMPORTANT PROBLEMS.
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https://youtu.be/L-KXsvcJZvg
Part 75 is uploaded.
BST is easy. Just remember the fundamental properties.
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https://youtu.be/Y8zE2Rfbib8
Part 76 is uploaded.
Standard problems must solve!.
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https://youtu.be/aYeT0HRqv3E
Part 77 is uploaded.
Method to solve is straight forward. Just be accurate!
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https://youtu.be/i5WMpruIkUU
Part 78 is uploaded.
Think differently. Stay focused.
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https://youtu.be/Pu4rw-uDRUw
Part 79 is uploaded.
Next problems are quite tough!.
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https://youtu.be/r2gvzeQUWUc
Part 80 is uploaded.
Time complexity can be improved. Thats the game!.
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https://youtu.be/a4FqA3DXQVQ
Part 81 is uploaded.
Got a pretty good solution for this. Do check it!
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https://youtu.be/wgO-tLWPXj0
Part 82 is uploaded.
Morris Inorder traversal
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https://youtu.be/swpw_k2ZBsQ
Part 83 is uploaded.
Tricky problem to think on the spot.
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https://youtu.be/oU4CcP_yHd0