Introduction to Hash Tables and Dictionaries (Data Structures & Algorithms #13)
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- Опубликовано: 27 июл 2024
- Here’s my introduction to hash tables and dictionaries!
The coding interview problem I mentioned at the end: • Google Coding Intervie...
And here’s my Python implementation: gist.github.com/ykdojo/4f9741...
Also, some more info about djb2: www.cse.yorku.ca/~oz/hash.html
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Really ... this man is legend ... We dont need to waste money on wastage courses because of you ... keep it up yk ... Cheers ..
Checkout my channel for more awesome full courses and tutorials
Thanks in advance
I do both, pay for BS degree in cs and watch these videos to learn on the side.
@@BlastinRope The Harsh Truth remains same in all places. without youtube we students will fail.
@@sayan_dasgupta how did the students managed before RUclips then?
@@w花b I can't even imagine. They most probably created the language we code in.
sir, please continue this. This seems to help a lot in building a way how to think about data structures and algorithms. you are a very good teacher. A lot of appreciation from India.
I have got to say, YK you are a genius, thank you for the entire playlist. Missed most parts of my semester after having had my eyes operated on and couldn't attend classes and after watching these videos, I can safely say I understand better than I would have even if I had attended the classes. Thanks YK, keep up the good work.
hey bru how are ur eyes feeling now , also how much did points did u recover and can u use computer normally now? i wanna do "lasik" but i am concerned about mine, PS: ik this is creepy but i just wanna know lmao :P
@@junaidahmed3981 same here. wanna know. have read about success stories but also heard that it can go wrong?
You have the skill of making most difficult problems easy and importing into human being's mind.
Thank you for the fantastic course, all your courses are easy to understand and comprehensive.
So so good to have you back!! Thanks YK
Dojo Gang 🤟🏻🔥
You're back, I hope you continue making this kind of tutorials :)
This is the coolest explanation of hashtable I've ever watched. Thank you!
Checkout my channel for more awesome full courses and tutorials
Thanks in advance
finally found the best dsa series .
really appreciate man.
keep uploading
I was just about to give up until I found your video. As someone new to programming, you have saved me from failing my Python and Java courses! Legend YK!!!
Hi YK, my whole hearted thanks to you for making videos on this topics. I really enjoyed watching this content and grasp the knowledge. Really awesome!!. We really appreciate if you can make some more videos and package to cover main topics for the coding interview prep. Thanks in advance!!
Finally one well made tutorial with dark background
I’ve been searching (no pun intended) for a video explaining hash maps. Best one I’ve seen on RUclips - thank you!
Hey, thank you, YK. You're king at this!
I started my python Learning with you. I can’t thank you enough for the quality of your videos. You are a genius explaining so well with great example.
One of my favorite teacher ❤️
Checkout my channel for more awesome full courses and tutorials
Thanks in advance
素晴らしいです!動画が分かりやすいし、YKの笑顔も癒せます😊
This bought clarity to one of the most basic data structures used. Thanks 🙂
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Thanks in advance
You're really a master at this. Great job! :)
you look so kind, like a kind oniichan or senpai helping us kohai. I appreciate you
LESS GOOOO. Dude when I was searching for videos on this topic I was crossing my fingers that YK would have a video on it. Thank God lol
You explain so well
Thank you because your explanation very clear and easy for me to understand. Please always makes more videos.
This is the best explanation on this subject matter on RUclips
Thank u so much yk
U make me understand everything very quickly...
Keep uploading videos with the same frequency brother
Checkout my channel for more awesome full courses and tutorials
Thanks in advance
Man plz upload more videos on data structures and algo ur series is just awesome
You made data structures easy. Thank you❤️
Which channel
Keep uploading with same frequency :D
I'll try my best :)
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Thanks in advance
Your videos are amazing! Thank you for teaching us all this. Especially your Python tutorial.
Thank you so much for saying that!
CS Dojo No man, Thank you for making all this simple, fun and interesting. You make it very easy to learn and look forward to all your videos in the future.
@@CSDojo hi can you please upload more vidoes for file handling .Thanks
❤️ thanks for your exercise in such a difficult theme
Two vids in a month!!!!! :)))))))))))))
I'm currently learning data structures and algorithms so it's a big help! Thanks!
Haha yes, I'll try to increase my frequency tho :P
And thank you!!
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Thanks in advance
it's really helpful tuts and also you have the best way to teach someone that's why you got the more subscribers in a low time, really the best youtube
Checkout my channel for more awesome full courses and tutorials
Thanks in advance
Thank you for sharing this knowledge ❤️
Checkout my channel for more awesome full courses and tutorials
Thanks in advance
Thank you so much I was waiting video on this topic
Hey YK your video are awesome it helped me to crack some good interviews. Please keep posting videos we are more than happy learn from you. As your content is really awesome 😍
Checkout my channel for more awesome full courses and tutorials
Thanks in advance
Nice to see u back
Hey cs dojo it's a request plz make more videos on programing related stuff coz it's really helpful the way u explain things is just awesome plz.....
I'm surprised no one mentioned the Dark mode of the tutorials. Thanks, mate.
It's a pleasure to watch these videos. Superior quality and concise explanations!!! Keep up the good work👍🏻👍🏻
Btw, belated Happy Birthday!!
Thank you so much!!
Nice video man. pls keep uploading at the same pace
Will do my best :)
Thanks soo much Dojooo because I have been taking Data structures in begin of this year and I was waitng for your perfect contents about data structure ... please keep going this seriess :)
Thanks a lot again
when the bell icon shows CSDOJO.😃 Your videos are always helpful.
Thank you!!
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Legend!!! I hope i meet u one on one someday. You deserve a gift
This guy describes the problem in 18 minutes so much better than my professor did in 2 hours ...
a very smart . clever . intelligent example and explanation !
Bruuuh make more videos, your content is very clear and you take your time describing this material
I really like ur videos. The motivation on to help people with youtube is so much better then just want to make money with it.
Checkout my channel for more awesome full courses and tutorials
Thanks in advance
Great video, very clear and easy to understand. Thanks a lot!
thanks a lot for this man, loved the series, thank you again
Well-explained. This is really helpful especially to beginners. Keep up the good work. :)
Hi. Does working as a programmer cause health problems due to too much sitting down near vision adaptation? Also what about carpel tunnel syndrome due to using the keyboard?
Please upload as soon as possible we wait all the time
I have been watching your channel for quite a while now and I love it!!!. Awesome and by the way did you know I also have a stuffed toy penguin that looks just like yours.😀😀
Thank you so much for your explanation. This was a big help.
Hope you are doing great and hope we can see your update soon!
CS Dojo, we all love you.
Hello!
Thank you for explanation! But I think I misunderstand one point.
Can you check whether a mistake in double-hashing search and insertion complexity estimation?
If m1 and 1/(1-alpha)
A bunch of love from myside bro u are amazing . Excellent explanation 🔥🔥👍👍👍
Congratulation 🎖️🎖️ my main mentor, I love you and I will never unsubscribe this channel. Because it give me the opportunity to learn and improve my channel.
This is writing to let you know, support other small channel who need your help like me. Always thanks for this amazing content 👇😎
I love your channel keep it up boss.
hey cs dojo, great content. Would you open up a series on building web app with python flask sometime in the future?
Great explanation. Just to add, In Java, HashMap is a popular Hash table implementation. There are more like Hashtable and ConcurrentHashMap but HashMap is the most common one.
ruclips.net/video/3Eqidoe2Iog/видео.html
👆never click this link
It's a RUclips Python Spam Bot!
Bless this video for teaching content my prof couldn't
Please do more, you're my only hope 😁😁
Good to see you're uploading videos again YK!
hope your eye is healthy now?
Checkout my channel for more awesome full courses and tutorials
Thanks in advance
I'm really enjoying your lessons. I'm fairly new to CS to you lost me at 13:00 but otherwise, great video. Maybe one day you can drive deeper into the math
I understood the linear probing and double hashing explanations but at 13:00 he started speaking gibberish.
Best youtube teacher out there by far
Very good tutorial! Thank you
nice way to explain that complicated subject.. thank u bro
Hii bro...ur videos are amazing bro ...and ur way of teaching is awesome bro ... and we are learning so much information from u bro ..thanks a lot bro ...
It would be amazing if you can continue doing this amazing course!
and like in the beginning using Java.
(Java because you are focusing on to teaching the logic and understand the concept and Java seems like the perfect language unlike Python)
and even I can't know how much effort it takes, time it consumes... Overall how hard it is to make these videos in this quality... but I can say that you are doing an amazing job and people that has seen your videos can see and appreciate what you do.
I personally want to say thank you for making these quality introduction videos and looking forward to see more in the future.
Have an amazing day!
Thanks for the great tutorial!
Can you tell me pls, what redactor do you use for the demonstration?
Thanks for the great content! liked the music btw!
thank you for this great video. I have a question though: I did not get why search can be O(1).
Say you have a 1/3 filled array with 9 elements total.
Say you have a 1/3 filled array with 10^99 elements total.
Why wouldnt it take much longer to find an element in the second array?
You Are the algorithm expert!!!
no need of algoexpert.io .... lol
Hi! Can you explain what graphs are? Thank you for your effort!
Great overview!
Hi; thanks for the nice video. Two corrections: on 13:33 the reason is not to cover all the array. The reason is that it makes sure that no two elements will be positioned in one cell anymore. Also on 13:44 c should be a positive integer also it SHOULD not be divisible by m. For example m = 7 and hence c cannot be 14 although it is positive (since 14 = 2*7).
Did he admit it's wrong?
its better than 1 hr MIT lectures.
2:15
So IIUC using the ASCII number is an arbitrary choice? (abstract/high level)
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Thanks dojo for this video. 😊😊
Hello sir, i have a question. why in the hash table that used linked list, the new elements (that collides) we put it in the beginning of the linked list not in the end? thank you
it really good and simple to understand
love it wow almost 1000 views in 30 minutes and no dislikes amazing keep going!😘
Thank you!!
@@CSDojo no problem,love you from india
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Is there any reason why CSDOJO appended 'd'? to the second hash function? Or was it just there to be different from the first hash with a different key.
A video on how to improve my computational thinking... :D
Hey, what app do you use for making those presentations?
Can you suggest one good book on data structures and algorithms? I have searched on internet and find like so many books and it's really confusing. If you can suggest one book which is going to cover everything and can be used as a good reference for preparing for coding interviews then that will be great. And if that book is written for c++, then that's even better.
Hey, i have a questions? when i was in high school i got a coding project which i need to design a web, but my teacher doesnt told me how can i search my project on google
what specification of a laptop is required for CAD/CAM or SolidWorks environment.
Great way to teach!
i'm here 15 minutes before the exam heh thanks man!
I recently came across your channel and I am curious about learning coding and programming.
My question is that can a student without science background learn it or not. And is Math necessary?
Sorry for a dumb question. For chaining + hash, why is the search O(1+a)? In my understanding, the worst case should be all values collide and then n will go the end of the chain. Then it becomes O(n). Can anyone help me explain this? Thank you very much.
Waiting for your next video on data structure.....only following you for data structure..
Wow! This helps a lot!
Hey YK please wanted to have an advice...can someone working in supply chain management field move into programming so easy?
So, as I understand that in chaining method every index in an array is a pointer to key/value pair right ?
He’s back. Can you do more beg python tutorial for project or just doing something that is fun
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Thanks in advance
Do you have any idea about the course Computer science and technology. I wanna know whether it's good or bad. I also wanna know whether there's scope for that course. Hoping for your reply
so in javascript, we have object like
{john:'88', kyle:'30'}
this is basically already hash table (dictionary) and we dont have to convert it to array anymore, right?
Thank you 👍 for this helpful video .
Can you do a tutorial on how to make a simple chat bot. I've been trying but cant manage to work it out.