6:53, Neetcode also used spreadsheet to record each problem analysis along the leetcoding, quite useful for reflection. I think your metacognition is quite useful to record the mind flow~
Analysing metacognition might not be recommended and required for beginners. Its only after you get good at the game and you need to micro optimize your thoughts.
Hey Collin hope you are doing great. I have a request for you. Can you please make video on interactive problems, i mean what kind of problems are these and how to attempt them. I am a beginner and recently while practising I encountered one. Please if it is possible make one. Hope yuu will see this comment.
When I pratice then the only problem which I face is not understanding the editorial, like I have no issue putting in the work but after all that I'm still not able to understand the editorial? Any solution for that?
He said in the video that you may not be able to understand the editorial from the first time. Try rereading it later, if it doesn't help go ask help, on errichto server for example
Yeah asking for help is important. I'm doing codeforces problems right now just to practice as I learn to code. I ran into an 800 level combinatorics problem but I didn't know what combinatorics was about. I tried solving this thing for like 6 hours. Asked for help online, and someone was like "oh you need to know about this thing, here's a wikipedia article." I read it, watched a video, and solved it in around 20 minutes. Knowing when to stop and just ask for help is extremely important. Some of the codeforces problems, even the 800 ones, might require you to know something in order to solve them. And if you simply do not know the trick you won't be able to solve the problem.
To Colin or anyone else, To you folks see loop invariants as a effective thought process? It helps me a lot in some problems. Also thinking about making progress in each iteration, guarantees for termination and so on help! Any other thinking paradigm you folks follow?
Please, try to read this Galen. A thanks to you. I practiced a lot (for 3 years) and never got to be an expert. My practice method was basically choosing a problem of 1700-2000 difficulty and trying it for 1 hour. After that I've always read the editorial or seen someone else's code. Like that I've done (not solved) 1500+ problems over past 3 years and 10% of them were actually solved by myself. Then I've started watching your videos and learned that you emphasize on thinking for a long time and I thought, "ok, let's give it a try". You know, I've solved 11 problems of 2100-2200 difficulty (non dp, dp is my weak spot, I'll train it later) this month and you know what, my rating is now 1700+. And now I like to think about solution for 2-3 days no matter how difficult they are. Feels like a problem solver rather than a coder. Thank you very much Galen.
yeah, you mentioned very good point, you have to solve it on your own, but you missed some point that, sometimes we might not have an enough knowledge about what if there are another appropiate topic we can use on solution, or you may not know that topic for solving that problem, so what will you do
Could you describe your thought process and its types? E.g., materialization (thinking about something's individual parts, interactions, functions, and bringing things into a more material/graspable form.), interpretation sense (the ability to sense when your interpretation is off and to focus on fixing it), answer tracing @ scanning (thinking of all the ways one might arrive at a conclusion), etc.
Not sure if I can trust your strat. Clearly you just have high aptitude if you shot up from ~1600 to ~1900 within the span of about a month. You'd probably be able to use any dogshit strategy and make some serious improvement
What i do is to construct the generic version of a algorithm in my head and argue about every step until it makes sense. When im in bed for example, i think about how to reverse a singly linked list or a generic BFS, when i am able to do this i know i can recall it from memory whenever i want, building the fundament and later i am able to change it in code to what i need. I guess the trick is to be able to construct the whole thing in your head without any other stimulation or hints. Works for me
Great overview. I have only one minor note: for me, most of the useful reflections happen **immediately** after I realized what idea I was missing to complete a solution. Moreover, I sometimes find my conclusions from reflections done long after the contest faulty, as they do work for slow-paced practice but not in the time trouble of a real contest. But this thing is hugely personal, so idk, use it at your own risk
Thank you i will have to reword my problem solving I solved 100+ lc problem but still cant figure out most of them so I guess my approach was incorrect.
1. I just do whichever problem, any type. doing different problems allows me to creatively reuse those thought process that led me to solve a hard problem for later problems. 2. I then practice by solving specific problems of only a certain type 3. improve solving speed, usually from lots of experience in observation problems, and good implementation skills and tricks. to improve, i am studying classical algo/ds. practicing ad-hoc and non-classical problems are good over time, classical knowledge just becomes common sense. no doubt, problem solving intuition will get stronger. c++ knowledge, good code readability, and usage seems to be a good thing to improve imo
Could you describe your thought process and its types? E.g., materialization (thinking about something's individual parts, interactions, functions, and bringing things into a more material/graspable form.), interpretation sense (the ability to sense when your interpretation is off and to focus on fixing it), answer tracing @ scanning (thinking of all the ways one might arrive at a conclusion), etc.
Key learning from this video 1> If you cannot resolve a problem that you did before you didn't learn enough from it. 2> Choose a problem that is difficult for you or Helps you to learn a new topic(allocate more time in the thought process around 30 minutes) and code the solution once you understand it. Note down what you are thinking of as you do it. 3> If something goes out of your head, run after it. 4> Metacognition -When you are solving a problem note down what you are doing and when you look back at these notes you will know where you went wrong(and the best way to do this is by recording). 5> Once you are done with the problem maintain a spreadsheet where there is a summary of the solution. 6> Make sure you know how to use big ideas/topics from solved problems. 7> Treat every problem as a learning process. 8> Your practice will tell you what topics you need. hope it helps it.
I know you have a number theory video...but can you plz make one on chinese remainder theory? Been looking for one but i can't get it....Lets make one starting from the beginner steps then solving to kind of complex problems plzzzz in c++
Does it come up often enough to warrant a whole video? On Codeforces, there are only 13 problems with that tag (out of over 7,325). I don't know where to find problems on it anyway, other than the codeforces tag.
@@ColinGalen okay i just wanna know how to practice in such cause of my cryptography class...if you can help out with the implementation walk through i will be able to take it up from there.
Simply wow. OP thumbnail too :)
@@nitindas208 eeee
re bhai
6:53, Neetcode also used spreadsheet to record each problem analysis along the leetcoding, quite useful for reflection. I think your metacognition is quite useful to record the mind flow~
Analysing metacognition might not be recommended and required for beginners. Its only after you get good at the game and you need to micro optimize your thoughts.
Thank you very much Colin : )
Thank you bro, I think your advices are going to help me :)
Hey Collin hope you are doing great. I have a request for you. Can you please make video on interactive problems, i mean what kind of problems are these and how to attempt them. I am a beginner and recently while practising I encountered one. Please if it is possible make one. Hope yuu will see this comment.
I use this RUclips thumbnail to set as my PC profile picture
When I pratice then the only problem which I face is not understanding the editorial, like I have no issue putting in the work but after all that I'm still not able to understand the editorial? Any solution for that?
He said in the video that you may not be able to understand the editorial from the first time. Try rereading it later, if it doesn't help go ask help, on errichto server for example
Thank you!
hope you will participate in Saturday's div1
All hail memelord!
after 6 months of cp, I am now
800 elo.
I loved the idea of getting as much information from a problem as you can. Feels like the right way of learning!
Yeah asking for help is important. I'm doing codeforces problems right now just to practice as I learn to code. I ran into an 800 level combinatorics problem but I didn't know what combinatorics was about. I tried solving this thing for like 6 hours. Asked for help online, and someone was like "oh you need to know about this thing, here's a wikipedia article." I read it, watched a video, and solved it in around 20 minutes.
Knowing when to stop and just ask for help is extremely important. Some of the codeforces problems, even the 800 ones, might require you to know something in order to solve them. And if you simply do not know the trick you won't be able to solve the problem.
care to give a link to the article?
To Colin or anyone else,
To you folks see loop invariants as a effective thought process? It helps me a lot in some problems. Also thinking about making progress in each iteration, guarantees for termination and so on help! Any other thinking paradigm you folks follow?
could you plz make video about which math skills we need to be better in cp or programming generally 😊
"Your practice will tell you what topics you need to learn" love this statement. My strategy is similar to it.
Thumbnail OP🔥
Please, try to read this Galen. A thanks to you.
I practiced a lot (for 3 years) and never got to be an expert.
My practice method was basically choosing a problem of 1700-2000 difficulty and trying it for 1 hour. After that I've always read the editorial or seen someone else's code.
Like that I've done (not solved) 1500+ problems over past 3 years and 10% of them were actually solved by myself.
Then I've started watching your videos and learned that you emphasize on thinking for a long time and I thought, "ok, let's give it a try".
You know, I've solved 11 problems of 2100-2200 difficulty (non dp, dp is my weak spot, I'll train it later) this month and you know what, my rating is now 1700+.
And now I like to think about solution
for 2-3 days no matter how difficult they are. Feels like a problem solver rather than a coder. Thank you very much Galen.
yeah, you mentioned very good point, you have to solve it on your own, but you missed some point that, sometimes we might not have an enough knowledge about what if there are another appropiate topic we can use on solution, or you may not know that topic for solving that problem, so what will you do
for that reason, idk maybe after 200 solved problems, we might understand, i know the topic and i have to solve it lonely
Could you describe your thought process and its types? E.g., materialization (thinking about something's individual parts, interactions, functions, and bringing things into a more material/graspable form.), interpretation sense (the ability to sense when your interpretation is off and to focus on fixing it), answer tracing @ scanning (thinking of all the ways one might arrive at a conclusion), etc.
Not sure if I can trust your strat. Clearly you just have high aptitude if you shot up from ~1600 to ~1900 within the span of about a month.
You'd probably be able to use any dogshit strategy and make some serious improvement
Very good tips. I'll try to implement them, if worked for me I'll definitely share my experience with you. Thank you.
is it working?
Share experiences
Does it work?
Bruh wasn't expecting you to be a meme lord lol but good nonetheless
What i do is to construct the generic version of a algorithm in my head and argue about every step until it makes sense.
When im in bed for example, i think about how to reverse a singly linked list or a generic BFS, when i am able to do this i know i can recall it from memory whenever i want, building the fundament and later i am able to change it in code to what i need.
I guess the trick is to be able to construct the whole thing in your head without any other stimulation or hints.
Works for me
Exactly . That's kind of like what intuition is.
Great overview. I have only one minor note: for me, most of the useful reflections happen **immediately** after I realized what idea I was missing to complete a solution. Moreover, I sometimes find my conclusions from reflections done long after the contest faulty, as they do work for slow-paced practice but not in the time trouble of a real contest. But this thing is hugely personal, so idk, use it at your own risk
Thank you i will have to reword my problem solving I solved 100+ lc problem but still cant figure out most of them so I guess my approach was incorrect.
"Learning relearning, Learning Relearning
U are too concerned about it JUST let your thoughts flow"
-master oogway ✌️
9:55 Here is my comment. Can you release my family from your basement now? Please!!
One should definitely practice watching this video regularly.
Can you tell me if practicing by topic is good or not, or should I choose random problem to do?
I never post comments but thank you for this
galen cloudin
Insightful video, thanx
Colin I'm comfortable with tree, graph but not comfortable with simple problem....What to do ?
how did he have that much hair
i mean how to have that much long hair , i mean how to live stress free
Forget competitive programming i can't even do bssic
Thank you so much!!!!!!!!
this is the principle of deliberate practice, it's like learning to touch-type, its grunt work. thank you for your contribution...
Expert in 1 to 3 months is doable. Butbhe first "real" barrier is indeed CM (and high Expert).
From a distance, the thumbnail suggests, Grandmaster -> Pupil
1. I just do whichever problem, any type. doing different problems allows me to creatively reuse those thought process that led me to solve a hard problem for later problems.
2. I then practice by solving specific problems of only a certain type
3. improve solving speed, usually from lots of experience in observation problems, and good implementation skills and tricks.
to improve, i am studying classical algo/ds. practicing ad-hoc and non-classical problems are good
over time, classical knowledge just becomes common sense. no doubt, problem solving intuition will get stronger. c++ knowledge, good code readability, and usage seems to be a good thing to improve imo
Could you describe your thought process and its types? E.g., materialization (thinking about something's individual parts, interactions, functions, and bringing things into a more material/graspable form.), interpretation sense (the ability to sense when your interpretation is off and to focus on fixing it), answer tracing @ scanning (thinking of all the ways one might arrive at a conclusion), etc.
Thanks!
Thanks 😊
Great advice. I've been programming for many years but I really want to become pro.
Thanks :)
Awesome
Thank you so much for the tips. I will definitely try them out :)
its goodddd..
I had never thought about meta-cognition the way you explained, this is unique!
Thank you!!
That thumbnail is hilarious 😁
Thank you
Thanks!
Thank you
Key learning from this video
1> If you cannot resolve a problem that you did before you didn't learn enough from it.
2> Choose a problem that is difficult for you or Helps you to learn a new topic(allocate more time in the thought process around 30 minutes) and code the solution once you understand it. Note down what you are thinking of as you do it.
3> If something goes out of your head, run after it.
4> Metacognition -When you are solving a problem note down what you are doing and when you look back at these notes you will know where you went wrong(and the best way to do this is by recording).
5> Once you are done with the problem maintain a spreadsheet where there is a summary of the solution.
6> Make sure you know how to use big ideas/topics from solved problems.
7> Treat every problem as a learning process.
8> Your practice will tell you what topics you need.
hope it helps it.
❤❤❤❤
:)
I am gonna quote myself because why not ?? 😂
Camera quality improved
Hey you said. Ask help from others as last resort
But in a way an editorial is also someone others thinking so how is it different ??
The thumbnail is DOPE !
thumbnail op😂🔥
is watching editorials is bad ?
i am just starting , and i am unable to do atleast one question on my own
how should i get better ?
pls help me
thanks for all the content : )
Question - Does kaunta has practised from somewhere else also or only from codeforces.
Thanks
Oh, damn it, and I thought I was good for reaching blue in a year… I mean, I have a justification that I have a rather tough school, but still
Thank you!!
Thank you for share!
It's easier than it looks. I found learning soft design (like setups - I use SERUM) much more scary but it's doable, you just gotta be
The thumbnail is gold
I know you have a number theory video...but can you plz make one on chinese remainder theory? Been looking for one but i can't get it....Lets make one starting from the beginner steps then solving to kind of complex problems plzzzz in c++
Does it come up often enough to warrant a whole video? On Codeforces, there are only 13 problems with that tag (out of over 7,325).
I don't know where to find problems on it anyway, other than the codeforces tag.
@@ColinGalen okay i just wanna know how to practice in such cause of my cryptography class...if you can help out with the implementation walk through i will be able to take it up from there.
I think Errichto has made a video on it you can check that out.
@@SurajSingh-pb4bs He just explained what i already know...i need the implementation bit
F dude these psets are too hard
thanks for all your videos please keep up the work ❤
i think i'm kinda already doing what you said in the video! i won't ever stop until i get the result i want thank you.
If possible can u make a video on FFT?
Fast Fourier transform?
@@12six69 yes
You are KING!
Thank you, for some reason you're uplifting
Awesome guideline. Can you please give a more detail about the spreadsheet recordkeeping, I mean some sort of example of spreadsheet.
i got to know today why my rating isn't improving :)
Thanks
🔥🔥
you're good kid Colin, thanks
and even simpler once are tough for me
Why leetcode logo was their?
this is one of the least bs how to practice videos i have seen on any topic i feel like! good job!
Colin is a legend!!
Bru you look like Baba Yaga
Do you remember overule
some tips
thanks for keeping it post
Thanks for the advice, nice video.
Commenting for engangment
Bump?
Bump.
pog vid
bump
great content!
Thanks
Thank you sir for your guidance.
Hehe hi bro 😁
i love topic streams
Congrats on 20k yooo!!
❣️
Non coders will also jump into the video seeing the OP thumbnail