How to EASILY solve LeetCode problems

#coding #leetcode #python

[utkarshdewan]

This umm.. went over my head tbh. Although good for a quick revision for those who have already solved this or aware about the concept or the trick

[fogcat]

the second rule of leetcode is to figure out where to use a hashmap ;)

[AlwafiCharki]

Bro i didnt even understand the problem 😂

[lvmrjb]

It sucks because this is what whiteboarding interviews were for, literally visually solve the problem first with the interviewer -> code it out. Now with all virtual interviews, it’s much harder to communicate if you can’t verbalize exactly how you’re problem solving/thinking

[venkatinator]

Thanks! Do you really need a stack? What about O(1) space just by scanning right to left. Compute arrival time of element R then scan leftwards with L pointer to skip all elements with earlier arrival times. Then increment your count. Snap the R pointer to L pointer. And repeat.

[DaThuFlorida]

Bro, you are one of the rare programming lecturers on Youtube that visualize the problems 😭

[lingyundai]

i remember learning this problem it was such a brilliant solution

[WazobiaTechGuy]

How am i supposed to come up with that graph though

[maxguichard]

One liner for all of y'all trying to fail your job interview 🙌

reduce(lambda fla, pair: (fla[0] + int((target - pair[0]) / pair[1] > fla[1]), max(fla[1], (target - pair[0]) / pair[1])), sorted(zip(position, speed), reverse=True), (0, -1))[0]

[sergeynazarov]

So naive recomendation, the most difficult part of LC problems solving is to understand what is needed.

[TheRealFakrRLive]

Yeah I do that too, but my problem is just turning my answer to code is hard..

lol I guess that only be fixed with time

[killerthoughts]

LoL my brain was screaming union find union find!! Lol

[unebonnevie]

Computer science interviews have gone rogue!

[MehdiGlz]

Fucking python man, I swear it already solves all the DS parts of any leetcode problem

[Supakills]

Lowkey buying a drawing tablet levelled up my leetcode game 🎉

[KingXKok]

Why do you need to do the [list comprehension] instead of just calling sorted on the zip output?

[Max-jube]

Thats so easy to visualize. I could have told you 3 and Im a mechanical engineer.

[ahmedelhadary]

thanks for that great video, I have one question which is should I solve leetcode problems after finishing each topic (I mean solving problems on each specific topic) or should I wait until I finish the full DSA roadmap of whatever course I'm taking then start solving problems on the full DSA?

[RolopIsHere]

At least leetcode gives you drawings, during the interview they wont give you any diagram or drawing so understanding the problem is harder.

[supercellburner]

The array speed is enough to solve this problem just by comparing the speeds of those cars.