I Tried To Speedrun LeetCode

A top competitive programmer from the Codeforces/CodeChef realm (with almost zero prior interview experience) tries to solve over 50 LeetCode questions in an hour to find out: how good is competitive programming alone? With very little interview experience, how fast can I crush these relatively easy questions? Find out in this video experiment.

Music:

Sthlm Sunset by Ehrling
(not exactly sure how to credit, the given link is dead)

Local Forecast - Slower by Kevin MacLeod
License: [yt dislikes this link, removed]

Sunset On Terra by HYBRID V (Creative Commons License)

This Is For You (Prod. by Lukrembo)

Timestamps:
0:00:00 Intro
0:00:44 Format
0:02:00 Quarter 1
0:16:46 Quarter 1 - Recap
0:17:54 Quarter 2
0:33:29 Quarter 2 - Recap
0:34:04 Quarter 3
0:49:04 Quarter 3 - Recap
0:49:39 Quarter 4
1:04:15 Quarter 4 - Recap
1:04:41 Conclusion

[dhankaniaryannarendra]

Never seen someone destroying questions like these. Please Do a medium difficulty speed run. We love your content Colin Galen.

[ColinGalen]

Okay, okay, I promise I'm almost done with this thumbnail (edit: it was changed, so this no longer applies)

[tedfitzpatrickyt]

Thanks Colin! I actually worked through all of these as you did (but I paused your video in between questions LOL). I would love to do the same thing with Leet's medium and hard questions, and questions from other platforms.

[andersonklein]

I've watched a couple of your videos and you clearly are an amazing coder with a good understanding of algorithms. So it is so reassuring when you still have to look up some basic Python stuff sometimes, honestly it is always disheartening when I have already been coding with it for years and sometimes forget really silly things like how to get the length of a vector in a given language. Glad to see it doesn't mean I'm a bad coder for it.

[Mello-ytoh]

I recently started learning programming (Python) and the way you solve these problems inspires me! You got a new fan my good man

[gosubob]

You should speed run the virtual contests. Go through all four, look at rank, then quit the virtual and go to next one. Would be exciting to watch.

[RustyNPiece]

C++ is so effing fast - incredible. I code along in JS since I started with web dev and holy cow is the difference big!

3:46 I lol'ed hard when you changed to Python here and answered with a one-liner : D

[AD-zhcm]

I love your videos man. Thank you for sharing

[MrTablturnr]

Speedrun mediums! They’re by far the most common difficulty for interviews

[atultiwari]

Please keep them coming content like this....✌

[bennettmajawa]

Kudos Mr. programmer you really inspire us

[dhankaniaryannarendra]

Learnt a lot from this. Boosted my confidence while solving leetcode questions.

[ganeshkamath]

Thanks a lot Colin. I hope to one day become this good.

[anexocelisia]

please do speed runs of medium as well as hard q's too !!!! and more of these easy speedruns please

[notlinuxneverdies]

please make a video for tough math problems, I always get stuck in them in atcoder

[nskybytskyi]

Top Competitive Programmer getting rate-limited by LeetCode at 5:15

[gabrielabdul]

Nice video -- haven't finished yet. I found the chrome extension extremely useful.

[moemoe-jbfw]

I’m watching with 0% competitive programming and 0% interview experience how and where can I start my journey ?

[pranshu]

Hi, Can you tell us what resources did you use to master data structures and algorithms. It would be really helpful

[AbstractAbsorption]

Keep targeting this userbase; gonna be great for engagement