based

based

based

based

I'll rune the joke Also your right

hahaha

so lazy…

Lol

Yea like really they should stop being lazy. I had already graduated by the time I was 3.

You kinda need to read first in order to understand coding :P (and yes I know this is most likely a joke lel)

Issue is not everyone enjoys it

So is math yet so many people hate it with passion regardless of their potential.

I feel the same way about boards. Everyone should at least skateboard, surf, Onewheel, etc. Progress toward peace and no hunger, imagine it xD

bruh nothing is hard if you apply yourself. Its just memorizing things. Like advanced maths. Just some people dont care to learn

@@mtutoriales I think it mostly depends on the teacher. It's also because of the reputation that maths has as "the hard subject".

no shit XDDD thats y she couldnt use it

You're right, Since Python is written in C, the library functions are super fast.

@@meelaud2103 But thats not a right mindset to be a programmer with, especially in today's market. What looks like cheating to you is just another tuesday for us. It just works like that, as said "You dont need to reinvent the wheel everytime you need to go somewhere with your car".

Recursivity always calling the function + char of the current position until the length of the string would work well too

@@bronzejourney5784 She wasn't the one making up the rules. And honestly, there is a lot to be learned by trying to accomplish something in as many different ways as possible, rather than calling it good with the "easy" or "correct" way.

they fear to the sun

just want everybody to know that i am all green on my github

lol I cringed hard when I saw the first girl using "+=" with a string in Python (since strings are immutable in Python, it basically creates a new string every time making the complexity O(N^2)).

@@mohitsagar9492 if im not wrong string concatenation are ammortized O(1) just like push_back() in C++ without reserve(). either way, it should be a non issue nowadays. there were more... pressing mistakes.. in the video.

@@stxnw Right in C++ strings are mutable! However in Python and Java they are immutable. Honestly everyone other than the first girl and that one Indian dude with Hashmaps didn't seem to be actual programmers so I didn't expect much from them anyway XD. And you will be surprised how much these small optimizations can matter when dealing with massive data!

Hahaha "Why am I here, What purpose do I have"

Hey! 🤣

i did this in java in 5 mins

In Java it would be easy for me to do it however I don’t knw any other programming language yet

I know python the easiest one

in what U toke it

same here,that hits different

@@momenmohamed8337 in a intro to CS college class

If a online class drop the link

@@vanci2039 kzfaq.info/get/bejne/gLZnfLd6va3UeJ8.html

cosmic rays

Cobol, fortran

Matlab is still used by Engineers

@@essaquadry true and mathematics

@@sodiboo butterflies

Or even the coders in this youtube channel

I'm ok with that.

I say try it on kids

I thinks homeless person should learn programming

@@Thunder-dp7du right? lol

I want to do so

same here

Woah for real? What helped you achieve that

same here! i'm on day 20 of angela yu's 100 days of code on udemy, and i was able to solve every question in the video 😁

@@filyboy7I am also studying that course 😊

Lmao

Remember doing my final exam for Cobal on punch cards. Program was due before the 2 hour final (2 week assignment). The final exam, he took all our programs, and dropped them on the floor and told us to reassemble our program.

I'm crying😭😭😭🤣🤣🤣🤣🤣

@@ingiford175 EEP！

🤣

Yeah but, you spent 4 years and $40,000+ to learn what anybody can learn for free on KZfaq in a couple months. And in another 4 years, everything you did learn will be obsolete, but you'll still be paying for it.

@@nickfleming3719 instate public college + athletic scholarships + academic scholarships + college isn’t really all about what you learn in your courses + computer science isn’t just being good a programming + L + ur white

@@nickfleming3719 Computer Science is not about programming or been a programmer

@@elephantwaffle5612 ok I see why you needed it

@@nickfleming3719 imagine watching a few “how to code” vids on KZfaq and then feeling superior enough to make fun of someone for getting a BS in computer science

You can do it with one index as well

💪🏿

YES.

Indeed

After taking an advanced python course, i feel prepared to write: def main(): print("hello world") if __name__ == "__main__": main()

Same here

It came around the same time as C Flat.

The son of c++ is c+😀😀😀😀😀😀

Lol that’s me! I panicked

Family with C hashtag

Maybe he designed it himself, you can never be sure

Lmaoo

😂😂

Don't forget C- and C-- !

Let's go baby math major :D

​@@KillOnSbut what about ++C and --C?

hehe 😂

I am guy at 3:45, I approve hahaha

Can't even get it for the lack of card

@@7heMech exactly

Thank u very much

Kind hearted man! ☺️

Ok

Yeah for the last one, I thought the solution would just be to use a double for loop and an if statement to find the sum of all the combinations and then just return whatever is at those indexes

I feel that way too, but you're asking people on the spot in the street. Without an ide I can't weed out the syntax errors.

@@arkesh110 double for loop is too slow you can do it using 1 and having a set to keep track of the elements you found already

5:40 He has some typos and syntax errors but the overall concept is great. It makes a dict map of "which remainder maps to the current number". And as soon as it encounters that remainder as a unique number, the dict returns the complementary number that sums with it. Good job coming up with that on the spot.

@@MyAmazingUsername shut up. You're just rehashing what I said with a positive spin.

Next time

Literally man 😂😂😂

seriously bro way to easy ques

Yeah literally 10 kyu on CodeWars

skillshare is a scam beware search the topic in yt u'd know btw i teach python and c too in hindi.

That's what i was thinking

That's kinda hard if you don't really understand the basic ruleset that programming provides (ways data/variables are stored, and ways to compare them). But I also think it would be a really good idea.

if you don't know anything about coding and the language they cannot test for anything imho obv. analogy here but would a racecardriver prove his talent if he hasn't touched go-karts at a young age. I have been good at math all my life, went up to AP Calc/Passed, but first time I saw a for loop iteration I was astounded, maybe makes it easier to understand after you have seen it but most of coding algos and components making them are kind of like magic tricks, you will need practice (alot) to understand how they are done. My .02

@@WoWkiddymage But that's the point, everyone does coding. Everyone who has learned how to manually calculate the root of a given number is pretty much primed to code in their heads, programming is just an abstraction layer to offload strict calculations while the programmer conceptualizes the steps. And yeah, definitely a dope idea, anything to get people involved who didn't think they were suited for it. Maybe some kind of paid bootcamp next where people just get money for learning a basic curriculum, that'd be fun too.

@@minhuang8848 What I'm saying is that these algorithm-based questions are created with restraints that you only understand if you have programmed before. Yes, coding/programming is "just" an abstraction but that is often the difficult part about it. Putting these concepts into the limits of programming data structures and being restricted by time complexities. I think the general idea of pattern recognition/problem solving that is similar to the coding question would create a cool sort of puzzle, but then that would be a totally different type of analysis of the problem if you don't include the ruleset that programming provides. You would basically have to teach someone all the basics of programming to see if they understand how to fit a problem into the constraints that programming provides.

Also, I'm not saying it wouldn't be a good idea. I think it would be really cool to tickle people's brains on the subject. I just think that the implementation of this kind of "social experiment" would be quite difficult, it would cost a lot of effort on the participants not previously understanding the limitations. Who knows though, there might be some cool ways to implement this idea...

programming languages are easy to learn but becoming a professional developer is not. so I think it's not ok to say everyone "come on start to learning programming".

Yesn’t

It's always important to make sure the answerer knows how it works, or at least gives an answer that, if the written code doesn't quite do it, does justify the thought process, and checks out.

It is more of a solving the problem mathematically with basic tools rather than how much do you know about the language itself.

op bro . i also thought the same

Literally posted a comment about that before seeing this one lol

I immediately yelled “LIST COMPREHENSION”

noice.

if these problems are your practice............................... good luck.

@@johndorian4078 took the exam already. It was kind of hard, but not that bad. Honestly, I was more following along for fun than actually preparing for the exam.

#imaprogrammerandneedtotelleveryone

What language is that ? I never saw " ::- " operator wow

@@Mariiius53 python and using slicing

echo implode('',array_reverse(str_split($string)));

Real programmers make it in brainfuck

return input(“your string: “)[::-1] input() already returns a string, no need to turn it into a string again

Honestly, he overcomplicated that. He had the right idea but then went rogue with the syntax and that code is definitely not maintainable. lol

Time pressure 🥲

it can be done only on sorted array so complexity is O(nlogn). Using hashmap u have O(n) but also same memory complexity

@@user-fd8nj6tx8f I think the leetcode one times you out if you use the naive approach, if he the guy in the video had done it on leetcode he probably remembers doing it that way because that's a way that will get your answer validated

@@flavorlessquark8614 yep and since its the first code on leetcode I think the average coders might have already solved it since when they teach DSA in courses they try combination sum as the first question to solve usually

@@Vikas_Kumar_Singh I would like to think that most coders, as mysef, are self thaught. It's also a thing to solve it, as it is another to solve it efficiently

The array is sorted?

You can do it it's not so hard. I watched this videos months ago before starting to learn and now they are so easy even though i wasn't dedicated to it like i would not code for two whole week .

@@minoroyale1226 fr, to me i'm learning things really quick, might be because i have great willingness to learn.

how goes the journey fellow dev?

How is your journey going

@@Zeeshan_Tanwri ChatGPT has made me somewhat an expert. Thank you for checking in. Hope everyone's coding journey is going well :))

The hashmap guy was making things complex for himself...when it could be solved so simple in O(N) time complexity

@@NoOne-sy5fg lol idd, I facepalmed when I heard hashmap.

@@NoOne-sy5fg I think with a hashmap the problem can be solved in O(N) even if the array isn't sorted. If the array is sorted then you can get O(N) using a more basic method, but I don't think the problem statement specified that the array was necessarily sorted. The hashmap is definitely more complicated in terms of basic operations that would need to be understood, but in code it is all abstracted away and then using the hashmap will end up with cleaner code than the other method that has the same time complexity but only works on a more constrained problem.

When you have imposter syndrome, think of the robot guy from Grandma's Boy and laugh about that character lol. You're doing great, keep it up and code everyday.

This is my week 4 of CS and I'm alr stressing that I don't understand any of these lol

@@datcate9116 I am in my first hour of CS and I dont understand any of this

@@billr5842 I'm no longer in CS HAHA

He found an O(n) solution, iterating over the array exactly three times to determine a solution if any exist, when the naïve solution is O(n^2), using nested loops. I didn’t see the hashmap solution lol. He deserves the $200.

But he made a small mistake. In Python list object doesn't have any attribute called length, len(arr) would have been correct instead

@@quasii7 Yeah. He had the right idea though and definitely could have debugged it given the chance.

@@JordanMetroidManiac He had the right idea with the subtraction and then finding the other value within the remainder of the array, not sure why he overcomplicated it by using the hashmap as his first attempt. Interesting to see regardless.

@@RandomVideos-yz5qf That's a O(N^2) solution though since you need two for loops. The way he did it (storing using a dictionary), you can do it in a single loop O(N) solution.

Yep, it's foreach has worse performance than regular for loops. No need to let people see that solution and start considering it a good approach.

@@sneak9407 I garantee you that the whiteboard would not have enough RAM for any of both approaches

@@sonikblade lmao.

Same it kinda threw me off tbh

in this case, the array is sorted. so you don't actually need to double loop through every element in the array. as long as the sum is bigger than the target sum, you can skip the 2nd level loop

@@DogeMultiverse you're right didnt think of that

@@DogeMultiverse is there a guarantee that any given array will be sorted...?

So the thing is, the solution you thought of definitely works, and it's even the first solution most people would think of. But the problem with it is that it doesn't scale well. If you have an array with a million elements, then you'll need to do a million comparisons and that's just for the first element. On the second one you will do a million - 1 comparisons and so on and so forth. It's perfectly acceptable with a small input but when the array becomes very large running it this way becomes very time consuming, as opposed to the hash map method where you only need to do, at most, a million operations in this example since you only iterate over the array once. This is an entire topic called "Time Complexity" and it's quite important to keep in mind if your use case requires super efficient code.