rfpermen's blog

Finally Reaching 1000 Days of Daily Submission Streaks
By rfpermen, history, 6 weeks ago, In English

I just want to flex my recent completion of 1000 days in a row of solving codeforces problem,

Here is my progression of doing this challenge from year to year,

If you are checking my account profile and wondering why the streaks shown to you is broken, it's because codeforces counts submission day based on the timezone setting for each user, and in my case it's UTC+7 (so my streaks only work for that timezone).

And if you are wondering how can I submit 3 solution at the same time everyday, well it's because I stash my accepted solution on vjudge, so honestly it's more like 1000 days in a row of submitting accepted solution, rather than solving it everyday.

But it's still hard to completed this challenge, especially there is a time when codeforces server is down for more than 24 hours, but luckily I already submit my solution at like 1 a.m. when that happen so I have 47 hours before my daily streaks is gone and luckily the server is up again before that happen.

Here is some other fun fact when I doing this challenge, since codeforces doesn't care of the difficulty of the problem you solve when counting daily streak, so I obviously just kept doing solving problem from the lowest rating, but since I solved 3 problems every single day, I literally starts to running out of easier problem, as for now when I sorted the problemset page from the lowest rated problem and then hide the problem that I already solved, then at the end of page three or the 300th easiest problem that I haven't solved would have a rating of 2000.

Note: I doing this challenge only for fun, not as my main source of training, since I believe solving from problem far below than your own rating most likely won't help you learn anything new.

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6 weeks ago, # |
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Unfortunately, your streak is not the same for all time zones (as well as your heatmap). You only have a 228 day long streak for me :(

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6 weeks ago, # |
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What sorcery is this.... Is this even real?

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6 weeks ago, # |
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will i become red if i solve 7226 problems on cf?

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    6 weeks ago, # ^ |
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    Who knows. It is really interesting because the div. 1 $$$C$$$'s and $$$D$$$'s are just flat out IQ problems. It is really odd, but the masters and reds just solve brainteasers for fun. I'd much rather learn about whatever a $$$prefix\,\,function\,\,automaton$$$ is than solve coding IQ problems cuz at that point I can just turn to solving mathdash problems instead.

    Edit: oh yeah my point was that it might be hard to do, even after a lot of problems because of the ad hocness of the div 1 problems.

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      6 weeks ago, # ^ |
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      You are saying this cause you can't solve them lol. Every div. 1 C level problem I have done recently I can connect to several ideas I have seen before. They just don't have names on algo websites. You may say 2034F1 - Khayyam's Royal Decree (Easy Version) is "IQ" as someone who is not experienced enough, but the experienced will point towards DP_Y and many other PIE problems see the standardness of this problem.

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        6 weeks ago, # ^ |
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        what about this one https://codeforces.me/problemset/problem/2018/D

        https://codeforces.me/problemset/problem/2006/C https://codeforces.me/problemset/problem/1967/B2 https://codeforces.me/problemset/problem/1943/C https://codeforces.me/problemset/problem/1965/C

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          6 weeks ago, # ^ |
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          I am surprised by a few of these picks, especially the first one. Definitely not like AGC050A. The first idea is based off of fixing the minimum (common idea). The whole DSU part I have seen many problems use a similar idea. In this problem, the details/logic are just convoluted/long rather than hard. There is also another solution involving segtree + matrix, which is an idea people see through solving a lot of hard problems. The ideas built from seeing lots of other problems get harder in harder problems. There is no boundary point where problems go from trainable to untrainable.

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            6 weeks ago, # ^ |
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            AGC050A looks like some ad hoc nonsense

            edit: what about C: Tree Compass

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          6 weeks ago, # ^ |
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          I was very surprised to see the first pick. That is a very very standard problem and I mindsolved it faster than A or B in that round.

          Only the last 2 picks looks properly like something which you could actually say IQ problems.

          I believe the point of contests and practising wrt contests is not that you are able to instantly see related ideas of previously solved problems, but rather that you can improve your thinking to solve a more varied ranges of problems drawing inspiration but not necessarily having the same ideas as other problems.

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            6 weeks ago, # ^ |
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            I think tourist makes good IQ problems. And jdurie too cuz he made that round too. The one with folding strip. The whole round was all ad hoc nonsense.

            But I believe you are incorrect because practice only gets you better at $$$relevant$$$ ideas imo. If a problem is $$$100$$$% ad hoc, no practice will help you, because you have improved your ability to solve only the types of problems that you have practiced.

            If it really improved your thinking ability, then wouldn't you get better at chess puzzles by solving a bunch of codeforces problems?

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              6 weeks ago, # ^ |
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              Even if a problem is pure adhoc, if you have solved weird problems before, you can still use the way you approached those problems, to approach a different ad hoc problem. Also i think a person who is very good at codeforces may not inherently be better at chess puzzles than another random person, but if both of them started practicing, i believe that the one who is good at codeforces would improve at a much better pace, and would be able to grasp concepts quicker. Akin to this, i believe someone who has solved a ton of ad hoc problems would be able to adapt to completely random things better than someone who hasn't done as much work

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                6 weeks ago, # ^ |
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                I'd have to disagree. What you are describing sounds like _g_eneral intelligence, which cannot be improved.

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              6 weeks ago, # ^ |
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              No problem is 100% adhoc

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                6 weeks ago, # ^ |
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                don't get all philosophical on me now

                Actually, you might be right. It is why some people can improve at ad hoc div. 1 A but mostly the improvement is tiny because it is $$$90$$$% ad hoc I think.

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                  6 weeks ago, # ^ |
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                  could u be my coach ?

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6 weeks ago, # |
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congrats

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6 weeks ago, # |
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looking good like a lot of dedication , time , brainstrome

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6 weeks ago, # |
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Orz, I'm halfway there :)

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    6 weeks ago, # ^ |
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    Nice to see that other people also doing this kind of challenge :)
    Good luck on your progress to keep maintaining your daily streak!

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    5 weeks ago, # ^ |
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    i'm 1/10 way there)

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6 weeks ago, # |
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Nope, try again

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    6 weeks ago, # ^ |
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    timezone

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      6 weeks ago, # ^ |
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      Yes, timezone. There is 24 hour period in which he haven't solved a problem, so his current streak is about 200 days.

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6 weeks ago, # |
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As someone who has solved so many problems, would you say that most div. 2 $$$D-F$$$ are standard? Or do a lot of them still get you thinking?

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    6 weeks ago, # ^ |
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    I would say I can solve most of div 2D problem without thinking too much, but for problem 2E its more depends on the contest, sometimes it can have like rated 2400+ which is still requires me a lot of thinking. And some 2F can be rated 2800+ which can take me hours to solve. So generally it more depends on the rating of the problem, for 95% of problem rated <= 2100 I probably can solved it in under 30 minutes.

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      6 weeks ago, # ^ |
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      Interesting, thanks for replying. Would you say that educational round $$$D-F$$$ are usually more standard than normal div. 2 only round $$$D-F$$$?

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        6 weeks ago, # ^ |
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        Yeah I would agree with you, I also think div. 2 only round problem D-F is usually harder than their counterpart on educational round or when there is also div. 1. (But from my experience it usually easier to reach Master by participating div.2 only round rather than div.1 round)

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6 weeks ago, # |
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Inspiring! more 215 days for me according to indian timezone.

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6 weeks ago, # |
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...uhh? is this a codeforces bug? why your latest submission says you submit those problems in same time? is that some special habit of you?

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