Google Code Jam 2021 Round 1B (6th place)
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- Опубліковано 12 чер 2024
- My screencast and commentary of GCJ 2021 1B. Problems and leaderboard: codingcompetitions.withgoogle...
0:00 A. Broken Clock
17:50 B. Subtransmutation
34:12 wrong submission
36:38 C. Digit Blocks
56:52 Summary
Coding live streams - / errichto
FAQ - github.com/Errichto/youtube/w...
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"What a stupid problem" XD That made my day!
Time ?
@@uploder247 0:37 , did you even begin watching the video or you always go to the comments before watching? xD
Mine too
lmao it made my night
The questions in the contest arenot enough for him.he asks himself even more. Lol
As a beginner seeing this
Me: *What am I doing in my life?*
Don't understand anything, but yet support him.
If the problem was unpleasant to solve, I wonder how unpleasant it was to create.
Just want to share this ideal with you guys any time you got issues with your social media account contact codedhacker999
Yea but the creators didnt have a ticking clock in front of their face
It was 9.30PM here, I opened the contest link, read the first problem, said "nah" and went to sleep 😂
lol i'm laughing first problem was confusing af hahaha
Relatable
same
Same
I spent 20 mins just scrolling up and down on the first question...🤕
I just stare at the question 1 until competition ended
Congrats Errichto ❤️🎉🎊
You are gonna sail through Round 1 and 2, good luck for round 3. Last year was a heart break.
I've already watched the whole video but I am coming back again and again for 0:38
It was indeed a stupid problem jaja 😅
@@julianferres It was actually a very basic problem, checking our understanding of modular arithmetic's. We could solve it with in a six lines brute force over 12 states for 3! hands positions, without any special algorithms. Thought that "tick"-coordinates and 1/12 really complicated the whole thing :(
Your speed to write a 4d dp was just a beast...it would take me an hour after the transition is given...
Finally after so long. Missed you a lot Kamil!
Many thanks for sharing all your videos with us, bro!! That's sooo inspiring!
24:20, In Subtransmutation, how fast he comes up that impossible case depends on gcd of a,b? What was the intuition? Anyone?
Congrats Errichto for score of 100. 🎉🎉And yeah first was really a stupid wasn't able to solve it 😞
Same. Have u solved second test set of second task?
I totally don't understand what's going in your code, but your place is stunning! Brawo, Kamil :D
Direct addition of seconds and then dividing it by sixty twice will give the amount of time obtained in the clock and this will also give th exact position of the respective hands of the clock
I have no idea what he's doing or how to read it but I'm blown away. Entirely different language
Congratulations Errichto
what the heck was this round .... I wasn't able to solve a single test case 😭😭😭
The first problem was just so unpleasant...
@@Errichto yahh exactly and I think second one was also not a round 1 problem ...
Anyways... congratulations to you , I have learnt a lot from your videos 🙏
Great video 💛💛 thanks 💛
Hey Errichito.
Do you participate in ipsc contests aswell (Internet Problem Solving Contest)!?
I like the fact that I am not the only one thinking whoever wrote first problem should be fired
Congrats Errichto, I am also qualified for round 2.
Yet again, I have no idea what I am looking at.
But you still do it
It was a face clock, I think.
"What a stupid problem."
LMAO XD
today's round was just too depressing. I mean the difference between the difficulty of 1A and 1B lol
I wouldn't even consider round 1B a programming competition. It was a pure math competition! 95% figuring out the math, 5% programming ...
was A much harder than B or the other way around?
@@zacharychao2377 B was a lot harder in my opinion
@@christianpaul3651 alas programming is always the easy part
@@harisasif2639 Not always in my opinion. At least for me there are problems where I find the main difficulty lies in the implementation (usually that are constructive problems, interactive problems, problems that require backtracking or some weird data structures ...). Even implementing some conceptually rather simple algorithm like binary search or quick sort can require a bit of care (I have seen many people struggle a lot with those indices)
Very cool. I feel like an ape watching you do a 4 dimensional dp problem. I can't believe I have a google interview tomorrow.
good job errichto!
I actually spent whole time fighting with this problem and I guess missed that very last check for "H
Bro You are amazing 🔥👍
What would the difficulty of these problem be in codeforces? i find them hard af
I wasnt able to do a single one 😭
True
In my opinion A&B are around codeforces Div2C. Somewhat like ~1700 maybe.
I was reading along with him... I also tot "what a stupid problem" when he did
dp[current challenge ] = dp[past challenge-1] + errichto's superpowers 🙏🏻 God
and here I thought that the correct way to read a problem was from the beginning to the end...
I was wondering something - at around 48:20 you have dp[0][0][0][0] coming in at over 19.07..., but by the time you submit around 56:30 it is down to 18.08..., which is less than 98% of what's theoretically desired. Do you know why it works regardless?
Very good programming tutorial
What a stupid problem 0:38😂
Maybe a stupid question... but which ide are you using?
Not a stupid - you can find video about his setup ua-cam.com/video/xAeiXy8-9Y8/v-deo.html&start_radio=1&t=0
Going to download 😌😌
Good job 👏🏻
Congrats
You are awesome ❤️❤️
how to get the cursor out of curly brackets in code blocks if somebody knows please tell me
how was he able to read the problem descriptions so fast? Is the structure always the same, so that you can skip some parts?
do you reply to messages if yes can you tell me how long did it take for you to try and figure out solution of a problem of rating 1200 without any help please tell?
Hi whats sides do you prefer to learn c++
dobry jesteś gościu, też bym tak chciał umiećxD
Is it helping to code using C ? I thought that competitive programming needs a "more dynamic " language , NO ?
Is it ubuntu 18 or 20?
Hey Brother, could you help me something? I exposed the Ransomware virus, so my files encrypted .wrui, can you fix it? with the state of online ID
which os do you use?
Nice
Your the best 👍
That"s great.
Watching this makes me feel like such a noob I am😥😂
why errichto uses scanf instead of cin
is there any reason
i am new to cp
cin is in C++ and scanf is in C
@@thel0negh0st scanf is also in c++
And he is using c++
Congrats....
Hello Errichto. There is the codingame contest spring challenge on May 06 ,I hope u will participate and upload video
🐐🐐
what os do you use
???????
y los subtitulos?
"what a stupid problem" hahaha so clever! But true, fits to waaaay too many problems.
I screwed up this round..ㅠㅠ
can anybody tell me if he uses his left hand or not?
How was it compared to round 1 A?
Round A was easier in my opinion
00:35 same i thought when see that 😂
I hope you’re getting paid the big dollars putting in these efforts
Dont understand shit but respect this guy
Lord
As soon as I learned the C language this video came to my recommendation and u know what happened after...
gratuluję ogarniania tego jakkolwiek! :D
ja nie potrafię w najmniejszym procencie tego zrobić, do dzisiejszej rundy nawet nie mam co się przykładać
Sir we want setup video.
Me on every exam "What a stupid problem"
I just started learning programming (basics) , how can i reach at that level ??
Years of programming and you be good enough to solve problems
Solve all Easy on leetcode, so you could do 4 in a row in less than half an hour. Only 4 every day. In 6 months you'll be ready to take part in contest and do all of Middle. Then Hard. And while learning read Laaksonen guide to competitive programming, for example.
@@Dead2098 thanks sir
@@satyammishra-xb3hs have an IQ>140
@@vio1583 i meant to say not “his” level but able to solve some hard questions for placement😅
I was just able to solve 1st testcase of 1, just by using brute force
This scrolling up and down is driving me batty. You can't print it?
What a stupid problem, too real
Which code Language is that?
c++ lol...
How many of you noticed 0:37😅..me all the times when solving codes!!
I had brain haemorrhage reading problem A. Too much of innovation, eh?
Problem c was cool. I am never too comfortable with problems which are interactive + probability type. Still, it was fun.
Do you use a blue switch keyboard?
Is he using ubuntu?
first here bro !!!
Which os is that? Or is it ubuntu with theme changed?
It's Ubuntu without any changes.
I think he also made a video describing the setup he uses...it's Ubuntu and text editor is Genie
3:56 😂😂😂 Congratulations!
i feel sorry for you that you've talked for about an hour but none of us understand thatt
Man, how do i get started.... I don't know shit..
me: practising Dfs Bfs
Mechanical engineer here😂😂😂.
Didn't know Declan Rice was a programmer 😅
Dajesz Kamil inspirujesz mnie
I agree!!!! The first problem is literally "annoying"🥴
Should we make a reality show out of this ? Lol.
to be completely honest it was a stupid problem.
Gg 🧣
You should definitely use vim. It is non negotiable
I can only say: O kurwa
Dark theme next time please
If someone has filename a.cpp... it means they are ☠️☠️💀
facil sacas el elefante y pones la jirafa