cpdojo's blog

Introducing cpdojo
By cpdojo, history, 12 months ago, In English

Hi Codeforces community, I have created a tool for helping out CF community — CPDojo.

This tool can be used for monitoring ourselves and also to filter problems.

Some of the features added as of now are:

  1. Problems filtering based on number of solves, problems tags and ratings. Like if you need problems which are solved by atleast X people and utmost Y people, then you can filter problems that way.

  2. You can also view how much problems you have solved between 2 time periods based on the problem ratings. This will help us to track exactly how many problems we solved during past 3 months and then we can make decisions based on that analytics.

  3. You can also view how many problems of particular type you have solved, which will eventually contribute to your progress tracking.

Sample screenshot:

I am planning to add additional functionalities too in future... If you have some interesting suggestions please do let me know :). Also let me know if you have any improvements that can add more value to the tool. Thank you !

Note : I am working on mobile UI currently. It is under development, so it is not recommended to view it in mobile. Thank you for your patience.

--------------------------------- New minor updates -------------------------------------------

Added Direction texts to show some functionalities on the platform

------------------------------------------------- New update -----------------------------------------------------------------

-- Added provision to exclude problem types (get all problems having type as graph but it should not contain tree problems).

-- Added a table to see all attempted problems which are not solved.

-- At the chart displaying number of problems solved in time range (based on ratings), at it's legend user will be able to see the total number of problems solved within a given time range.

------------------------------------------------- New update -----------------------------------------------------------------

-- Added Problem Recommendation system. This allows a user to particularly train for reaching their next rating group milestone. (i.e from Specialist to Expert)

-- Added complete change in CPDojo UI.

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Comments Comments (163)
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12 months ago, # |
  Vote: I like it +1 Vote: I do not like it

Thanks, it is very helpful. Below are my suggestions if reasonable.

When filter problems, 1. Can we exclude Tag also? ( like include graph and exclude tree) 2. Can we add more fancy functionality to combine AND, OR, EXCLUDE among tags?

User details: 1. Can we add total number accepted for time range, (just seeing details on problem distribution.) 2. Can we add problems attempted but not unsolved?

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    12 months ago, # ^ |
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    Hi Cheesma, thank you for your valuable feedback.

    When filter problems, 1. Can we exclude Tag also? ( like include graph and exclude tree) 2. Can we add more fancy functionality to combine AND, OR, EXCLUDE among tags? ---> I'll start working on this, mostly I'll be adding a feature to also exclude problem tags as you have mentioned in this comment. Thank you for pointing this out.

    User details: 1. Can we add total number accepted for time range, (just seeing details on problem distribution.) 2. Can we add problems attempted but not unsolved? ---> For this one, can you please elaborate it a bit more... because the first chart is currently displaying the number of accepted problems only, but, it doesn't count any problem twice (i.e we are taking only the first solve for a particular problem). Please help me to understand your comment regarding user details :). Thank you !

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    12 months ago, # ^ |
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    Hi Chessma, these changes are added and are live now !

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      12 months ago, # ^ |
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      I still seeing the original interface... could you snap shot your new one here for me to check?

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        12 months ago, # ^ |
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        Hi Chessma, I have added a screenshot of exclusion filter in the blog...

        When you click at the checkbox there will be 3 states now -- Select this particular type (shown by tick) -- Exclude this particular type (shown by — sign) -- No need to include this tag compulsorily, but it is OK if it is present (shown by empty checkbox)

        If the issue still persists pls do let me know.

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          12 months ago, # ^ |
          ← Rev. 5   Vote: I like it -8 Vote: I do not like it

          Hi cpdojo, I am very happy seeing my reqeusts is now live there. It help me a lot tracking my process.

          If you have time, below further requests will help me even more: For PROBLEM FILTER section: 1. besides "name" and "number of solves", could we add "#" and "difficulty" same as columns of codeforces->problemset format? https://codeforces.com/problemset [1765N, Number Reduction, 1500, x1490] this will help me sort those filtered problem by difficulty combined with number of solves.

          For user details: 1. could you add weekly/monly/yearly accepted number? [I know it can be calculated by specify date range below from today back to one week/month/year ago, but those are common statistics that people care about all the time.]

          extra: I am not sure if this is relevant to this project. But interesting to raise here. if I have some set of problem links provided by friends regarding some topics, is it possible to take those links as input and output the ranked links according to difficult level? below I have 3 links, which I want sort them with difficulies. https://codeforces.com/problemset/problem/555/B https://codeforces.com/problemset/problem/763/B https://codeforces.com/problemset/problem/1381/B

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            12 months ago, # ^ |
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            Hi Chessma, I am glad that these changes have helped you :).

            I have added these new changes which you have requested to my task list. Will begin working on it once I am free.

            Cheers :)

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              12 months ago, # ^ |
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              Looking forward to the future updates. Cheers.

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      12 months ago, # ^ |
      ← Rev. 2   Vote: I like it -8 Vote: I do not like it

      Hi cpdojo, When I choose both dp and tree tag to train myself on dp on trees, it seems to add problems belong to dp or trees rather than select problem containing both tags? If so, could you add features for selecting tag1 “AND” tag2? See example of https://codeforces.com/problemset/problem/1509/C Which does not have tree tag but shown up when select both DP and tree.

      cheers

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        12 months ago, # ^ |
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        Hi Chessma, this feature is under development now... along with sorting over table feature... they will be live within next 24 hours! Thank you for your patience !

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12 months ago, # |
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Auto comment: topic has been updated by cpdojo (previous revision, new revision, compare).

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12 months ago, # |
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Auto comment: topic has been updated by cpdojo (previous revision, new revision, compare).

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12 months ago, # |
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Here is an important feature you can add:

  • Virtual contest selection: A list of users will be provided. Filter contests where all the problems are unattempted by everyone.

Also, consider customizing the parameter "items per page" in the problems section.

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    12 months ago, # ^ |
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    Hi adnan_toky, thank you for your valuable feedback. I have noted down these changes. Will implement and add these changes to the platform in near future.

    Cheers :)

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    12 months ago, # ^ |
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    Hi adnan_toky, these features are live now :)

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12 months ago, # |
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New updates to cpdojo:

I have added upvote system for problems. Once when we find a problem really interesting and think that someone might get some value when they solve a particular problem, at this case, we can upvote a particular problem. This will contribute to it's Learning Index.

Thus it will help users to find better quality problems even though they are using some different kind of filter.

You can get filtered results sorted in descending order of Learning Index. (You will find a checkbox right below min-max number of solves)

You need to login first in order to make an upvote.

I really think that this upvote system will help CPers in a long run.

Please let me know your thoughts. Cheers :) Also, since this is a big change from my end, there may be some bugs or performance issue. Please let me know if you encounter any kind of bugs / inconvenience.

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    12 months ago, # ^ |
    ← Rev. 2   Vote: I like it -8 Vote: I do not like it

    Thanks for the new features(pls make Items per page up to 50) looking forward to my requests:)

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      12 months ago, # ^ |
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      Hi chessma, these changes are in their development stages. I will notify you once they are done ! Cheers !

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      12 months ago, # ^ |
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      Hi chessma, this change is live now... ! cheers :)

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    12 months ago, # ^ |
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    hi I came across this post now. the website is great but I wanted to ask what does this "learning index" signify. I mean does higher learning index means the problem is "good"/"difficult" than a problem of similar rating? A response will be highly appreciated. thank you

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      12 months ago, # ^ |
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      Hi amansingh81757, let me give you little bit of background.

      Sometimes we solve a particular problem that may require some different kind of thinking around the problem, or some interesting observation that might help to solve similar problems when we encounter them again. In short problems/way of thinking/observation that are really worth noting down and reviewing.

      At such a time that user can upvote that particular problem and his/her upvote will contribute to the problem's learning index.

      In short, it is recommended to solve problems with high LI, because it is recommended by many CPers. As of now LI for problems is less, but as time goes on and more and more people begin to upvote genuinely, it will start pointing us to right problems in a long run :)

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12 months ago, # |
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New updates added :

-- problems per page can be changed now — [10, 20, 50, 100] problems per page

-- ratings is visible in table (you can definitely hide it by checking the checkbox saying — hide ratings)

-- little bit improvements in UX of tables.

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    12 months ago, # ^ |
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    Just checked it. Very nice. I saw the filtered problems are listed by number of solves, Is it possible to sort by rating first then by number of solves?

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      12 months ago, # ^ |
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      Thank you chessma for your valuable feedback. I have planned to add sorting to table. In some days it will be implemented. Cheers :)

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      12 months ago, # ^ |
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      These changes are live now :) !!

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12 months ago, # |
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Due to latest deployment, some issue is slowing down the VM... I am working on it (it will be down for sometime). Sorry for the inconvenience. Will update here once the setup is up and running.

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12 months ago, # |
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Site is up and running now :)

Please do let me know if it goes down again... probably need to get a new VM...

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12 months ago, # |
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Deployment complete.... changes are live now

---- New updates 1 ---------------------------------------------------------------------------------------------------------

  1. Added sorting on columns — ratings and number of solves --> Tap on table header for that column and it will be sorted. For now supporting only ascending sorting of ratings column and descending sorting for number of solves column.

When you sort ratings column, problems will be sorted first by ratings (in asc order) and then tie is broken by sorting number of solves (in desc order)

When you sort number of solves column, problems will be sorted first by number of solves(in desc order) and then tie is broken by sorting ratings (in asc order)

---- New updates 2 ----------------------------------------------------------------------------------------------------------

  1. Added a checkbox (must include selected tags) to ensure that the problems which you get will have all tags which you have selected. This is helpful in case you need to get problems having dp and trees both together (for topic like dp on trees).

UPDATE: forgot to build the backend before deploying... now all features will be working :)

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    12 months ago, # ^ |
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    Happy to see all there:) cheers

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    12 months ago, # ^ |
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    Hi cpdojo, In problems filter, Can we add tag for showing only solved problems? My use case is to input some high rating ppl CF ID and sort their solved problems by difficulty, So I can start solving their problems. Better if you could add their submission link column, so it will be easy to check their submission code.

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      12 months ago, # ^ |
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      Hi chessma, I have added this feature to development plan. Will notify you once it is live... cheers :)

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    12 months ago, # ^ |
    ← Rev. 16   Vote: I like it -8 Vote: I do not like it

    Hi, cpdojo, Thanks you for above live features which now I use everyday. The following request maybe a very interesting feature to be added. It will be very helpful for my training.

    PROBLEM FILTERS: my request is just to add start/end time periods as inputs (the default is All Time, same as without this feature), so that I can filter out exactly what problems a CFer have solved during this specific period. of course, the current filter/sort feature can help to filter/sort their solved problems by tags/difficulty at your need.

    Example Interesting use case

    1. one of my friend jumps from Pupil to Master using only 9 Months, his training method is to just solve constructive problems. So this new feature can help filter out exactly what constructive problems he solved during this period when he improved dramatically. https://codeforces.com/blog/entry/66715?#comment-507869

    2. some CF ID have very interesting rating graphs, where in a short time, their rating improve dramatically, so it will be very interesting to know what problems(specific to tags/difficulty) they solved during these short period, so you can sort those problems and start to solve these problems(specific to tags/difficulty). for example, this CFer has become grandmaster just in 2 years. It may be interesting to pick up problems in the period when he improves fast and you can start sort by difficulty and solve them. https://codeforces.com/profile/BucketPotato

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      12 months ago, # ^ |
      ← Rev. 2   Vote: I like it +5 Vote: I do not like it

      Hi Chessma, this feature is live now... You can find it under User Details >>> User's solves tab... Cheers :)

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        12 months ago, # ^ |
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        Hi cpdojo, Thanks for the reply. I checked User’s solves tab, it lists solved problems and difficulty. But I can not filter by tag or sort by difficulty as I do in the PROBLEM FILTER section.

        Is it possible to just add time period inputs in problems filter section, so that the existing filter/sort function can be leveraged?

        Cheers:).

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          12 months ago, # ^ |
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          Hi chessma, both problem filter and user details section use different data sources. Also, Problem filter finds all problems irrespective of user/handle, i.e all problems that fit in filtering criteria (ofc limited by number of records). So I thought it would be inappropriate to add it in problem filter section.

          But I can see that filtering is needed for user's solves tab too... So yeah I will think of some way to add it to UI.

          Thank you for your valuable feedback :)

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            12 months ago, # ^ |
            ← Rev. 2   Vote: I like it -8 Vote: I do not like it

            Thanks cpdojo, hopefully adding this UI in user's solves tab is not tricky for you to implement.

            Cheers:)

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              12 months ago, # ^ |
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              Hi Chessma, currently due to workload I am not able to spend time on building this feature. I will try to make this feature available asap. :)

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              12 months ago, # ^ |
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              I have added a feature to filter out user solves. You can check it under User details >> User solves >> Apply filter button.

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                12 months ago, # ^ |
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                got it. Thank you for your time. BTW, for DP problem, sometimes dp tag does not mean it is using dp approach. is there any way from data to identify the problem is a true dp problem?

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                  12 months ago, # ^ |
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                  For this I was thinking about adding some feature to add additional tags. But I am afraid that some people might spam any tags as they want which can cause undesired results. But anyways will think about some way to implement it in near future....

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                  12 months ago, # ^ |
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                  or I am suggesting, you can collect from codeforces.com blog/discussion dp problems people recommended or mentioned which I believe should be a true dp problem.

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                  12 months ago, # ^ |
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                  will consider doing this in near future ! cheers :)

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12 months ago, # |
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--- New updates ---

Contest filter has been added, where you can search for contests for practicing. It will show up all contests for which you haven't solved/attempted any problems.

You can also add group members (but only upto 5 members)

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12 months ago, # |
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---- New update ----

Added table so that you can view some user's all solved problems in a given time range.

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12 months ago, # |
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If anyone has some other interesting idea which can be integrated into CPDojo pls do let me know ! :)

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    12 months ago, # ^ |
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    pls add dark mode

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      12 months ago, # ^ |
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      Hi red24, thank you for your valueable suggestion :). I have added this to development plan. Will make it live along with other features.

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        12 months ago, # ^ |
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        Very good project thank you!

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          12 months ago, # ^ |
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          Thank you kingmessi_FAN ! I am glad that it's helping you and you find it good ! :)

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      12 months ago, # ^ |
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      Dark mode is live now ! :) cheers

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      11 months ago, # ^ |
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      Hi there red24 I have been working upon dark mode for the Codeforces to accommodate features like testcase highlighting and overall provide a newer look to the platform. Will you be interested in reviewing it ?

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12 months ago, # |
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--- New update ---

-- Added Dark theme.

If anyone finds any bugs pls do let me know ! thank you !!!

Note: you can change theme from top-right button (before login button)

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12 months ago, # |
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Due to some technical issues CPDojo apis have stopped working... will fix it and let you know... thank you for your patience :)

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12 months ago, # |
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It is up again... ! thank you for your patience :)

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    12 months ago, # ^ |
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    still not working for me. seems attached by virus with gaming pictures on my screen.

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      12 months ago, # ^ |
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      Hi Chessma, is it still not working ?

      Also if you don't mind, can you tell me which OS and browser you are using ?

      Because I tried it on windows and mac OS with chrome browser, it is working.

      Page loading may be a bit slow because of too many CSS style, I am working on optimizing it.

      Please do let me know...

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        12 months ago, # ^ |
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        Hi cpdojo, it seems gaming pictures disappear, but it does not load problems. I am using chrome and windows10.

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          12 months ago, # ^ |
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          Ohh, it's a bit weird issue... Can you please try opening cpdojo.com using incognito mode ?

          Wanted to check if it works there...

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      12 months ago, # ^ |
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      made some changes, it should work now ! :)

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        12 months ago, # ^ |
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        still not load the problems. could you try select dp and exclude everything else?

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          12 months ago, # ^ |
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          Hi Chessma, I tried doing this, and yes I am getting problems related to the filter.

          Some eg are : 455/A — Boredom 698/A — Vacations 474/D — Flowers

          Can you please check if other filters are working fine...

          Also, can you please check in your chrome's network tab... whether some apis are failing or are we getting some console errors.

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            12 months ago, # ^ |
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            now all working:) cheers!

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              12 months ago, # ^ |
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              awesome !

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                12 months ago, # ^ |
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                yes, all working. small reminder if time permit: For user details: 1. could you add weekly/monly/yearly accepted number? [I know it can be calculated by specify date range below from today back to one week/month/year ago, but those are common statistics that people care about all the time.]

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                  12 months ago, # ^ |
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                  Sure... I will work on this one... maybe in some days I'll release these features along with some bug-fixes and optimizations.

                  Cheers :)

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                  11 months ago, # ^ |
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                  this one is live now ! :)

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          12 months ago, # ^ |
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          is this resolved ?

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12 months ago, # |
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pls add a feature to exclude problems that occured before some date or round number since old problems are much diff than new ones

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    12 months ago, # ^ |
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    Hi red24, I've noted this change! I will add this feature to the platform in near future. Cheers :)

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    11 months ago, # ^ |
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    This feature is now live. :) cheers !

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11 months ago, # |
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From past few days (after including the upvote feature), I am observing that my VM instance is getting overloaded (and bcoz of this the site goes down). I am monitoring this issue closely. I will work on it's optimization and try to make sure the downtime decreases considerably.

The site is up and running now.

Thank you for your patience !

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11 months ago, # |
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Good work but It says no such user...

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    11 months ago, # ^ |
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    Hi theali, can I please know which user's details you are searching for ?

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      11 months ago, # ^ |
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      Mine, handle : "theali"

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        11 months ago, # ^ |
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        Hi theali, I just tried using your handle. I can see your details. Did you press enter after adding your handle in User Details.

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          11 months ago, # ^ |
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          Yes, let me try again, Thanks.

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          11 months ago, # ^ |
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          It is working :) Thanks

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11 months ago, # |
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Upgraded CPDojo VM for better performance.

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11 months ago, # |
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Due to upvote feature (which was released recently) CPU usage is getting too high, leading to VM going down.

So disabling this feature temporarily.

Thank you for your patience... !

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11 months ago, # |
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Done the changes, now cpdojo should not go down any sooner :)

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    11 months ago, # ^ |
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    problem filter section, solved problems not showing green color...

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      11 months ago, # ^ |
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      Hi chessma, I checked this from my end... it seems to be working... can you please check once ?

      PS: Actually, for highlighting solved problems I am using codeforces apis. So if CF apis are down for some reason, it won't be marked green.

      Hope this gives you some clarity.

      Cheers :)

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        11 months ago, # ^ |
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        Got it. Probably cf was down then. Now working fine:) Cheers.

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11 months ago, # |
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---- New update ----

Added provision to see current week's, month's and year's solved problems.

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    11 months ago, # ^ |
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    Saw it live now, thanks. Cheers:)

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    11 months ago, # ^ |
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    Hi cpdojo, Is it possible to make a link change if I click current week's solves, link changes to sth below? (when I click the weekly tab, the link does not change.) so that I can make a shortcut to this link and check every time by just clicking it. thanks. https://www.cpdojo.com/user?handle=ID?weekly

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      11 months ago, # ^ |
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      Noted this requirement... will implement it asap ! cheers :)

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      11 months ago, # ^ |
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      Hi chessma, this feature is live now ! cheers :)

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        11 months ago, # ^ |
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        saw it live and it works for me. Cheers:)

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11 months ago, # |
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It would be great if you add some feature like.. when a person inputs his handle and rating.. it gives a list of problems(might be from different online judge or just Codeforces) which will help the user to increase the logic building and problem solving ability.(That will also help them in contest time).. Moral is.. a list of problems for that particular rating which will help to develop the skill and user can progress in the long run (rating ofcourse)

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    11 months ago, # ^ |
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    Hi Anchord, the feature which you have suggested is kind of complex... but yeah, will think of some way to implement it in near future !

    Thank you for your valuable suggestion ! :) cheers !

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11 months ago, # |
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---- New update ---

You can now exclude older problems by adding date in problem filter section. After adding a particular date all problems created before that date will not be added in the query results.

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9 months ago, # |
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CPDojo went down because of SSL certificate issues... Is up and running now !

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    9 months ago, # ^ |
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    Hi cpdojo, Is it possible to add features below? For example, I want to search all CF problem containing key word “XOR” either in problem title or problem statement? It will return me a list problems with such key word and sort in increasing difficulty?

    https://codeforces.com/problemset/problem/1722/G

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      9 months ago, # ^ |
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      Hi chessma, I've added this to my task list. Will update here once done ! Cheers ! :)

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        9 months ago, # ^ |
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        Hi cpdojo,may I follow up the progress so far? pls let me know if you need anything.

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          9 months ago, # ^ |
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          Hi chessma, this feature is currently under development. Will try to get this to production within 2 weeks. Cheers :)

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            9 months ago, # ^ |
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            got it. no rush.

            one more thing I am also considering: is it possible to filter out all EDU rounds and sort them by difficulty? [currently in "contest filter"session, I saw EDU is not separate from div2 and there is no sort function on difficulty]

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              9 months ago, # ^ |
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              Maybe we can implement searching for contests as well... need to check this !

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                8 months ago, # ^ |
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                Thanks for considering. May I follow up the recent progress so far?

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                  8 months ago, # ^ |
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                  Hi chessma, 80% work is done for problem statement search functionality. Will try to make it live asap !

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      8 months ago, # ^ |
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      Hi Chessma, this feature (problem-statement search based on keywords) is currently live now ! cheers :)

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8 months ago, # |
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Hi CF community, I've added a functionality to search for problem statement based on certain specific keywords. Here we have actually prioritized match of problem statements with querying keywords, so it won't be sorted by rating, but is sorted on the basis of best match.

You can check it out from search button on the left nav-bar ! Cheers :)

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    8 months ago, # ^ |
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    thanks for the new feature. not sure why user can not request secondary sort by rating from default rank [after they saw the default sorting by best match]

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      8 months ago, # ^ |
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      Also 1) how to specify exact match like using “shortest path”? 2) multiple key words search? Like Using “xor” AND “shortest path”.

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        8 months ago, # ^ |
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        Hi chessma, the search functionality is pretty flexible. You can type text as you want to search... it is not substring matching search so you can add multiple words and context while searching.

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      8 months ago, # ^ |
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      This can be done, but we felt that this sorting (sorting by rating) may defeat the purpose of searching for problems based on keywords. Anyways, we have added it to our list and will be implemented in near future !

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        8 months ago, # ^ |
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        thank you for the new feature, it is my No.1 go-to cp tool:)

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8 months ago, # |
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Really Wonderful tool.But it should be able to save particular username instead of writing again and again for analysis.

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    8 months ago, # ^ |
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    Hi d_sqaure, this maybe a product defect. Can you please give me the steps to reproduce this defect ? We'll try to get it resolved asap !

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      8 months ago, # ^ |
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      1.Log in to CPDojo.(this too has bug,it shows google popup even after login). 2.Go to user details.It ask to write username.When you press enter it will show all the analysis very well,but when you swich to another tab and back to user details username disappears it again ask to write username.

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        8 months ago, # ^ |
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        Hi d_sqaure, we have noted these changes... will work on this and get it resolved asap ! Cheers :)

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          8 months ago, # ^ |
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          I've also notice such thing where I put my filter parameters yesterday and when back to do it again today, I need input my filter parameters again. Better it can remember my setup.[like min-max rating range, num solves...]

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            8 months ago, # ^ |
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            Oh is it ? Can you provide some way to reproduce the same ? it will help us get this issue sorted !

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8 months ago, # |
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Filter EDU round by difficuty: currently in "contest filter"session, I saw EDU is not separate from div2 and there is no sort function on difficulty in "contest filter" session.

is it possible to separate EDU round out and add sort by difficult for the filtered divisions? Thanks

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    8 months ago, # ^ |
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    Hi chessma, we have planned to add this feature to cpdojo. Will update you soon :)

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      8 months ago, # ^ |
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      appreciate it, it will be helpful for me to filter and grind EDU problems above 1800+ rating

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      8 months ago, # ^ |
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      hi cpdojo, may I follow up your progress so far? cheers

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        8 months ago, # ^ |
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        Hi Chessma, as I am busy with my job related work I am not able to give much time for CPDojo. Will let you know once this feature and other bug fixes are done ! Cheers :)

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          7 months ago, # ^ |
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          Cool appreciate your time and contribution to cp community. Cheers.

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      2 months ago, # ^ |
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      Could you also come back on this feature? Thanks

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        2 months ago, # ^ |
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        Hi chessma, this has already been added.... I've added a new tab in 'Contest Info' section for Educational CF rounds. You can check that ! :) cheers !

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          2 months ago, # ^ |
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          I see. it is possible to sort problems just within EDU round by difficulty?

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            2 months ago, # ^ |
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            It can't be done so easily though...

            For now I am mainly focusing on some AI/ML things to add to the product to help CPers to rank up in much better way...

            I've noted this requirement though... will implement it in near future ! :)

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7 months ago, # |
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Is this site down (problems are not visible) or is it a problem on my end?

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    7 months ago, # ^ |
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    Server was down due to payment issues ! Server is up now !

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7 months ago, # |
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Hi Cpdojo, for problem filter session, could you enable sort by problem ID (PID）? since I want to practice most recently problem per rating.

I think it will not cost you 10 mins. thx

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    7 months ago, # ^ |
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    Hi Chessma, I have been trying to give some time to CPDojo too... but due to release work of product in my current company (where I am working as an employee), I am not able to give time to CPDojo. Will implement it surely and let you know once I get time.

    Thank you for your patience ! :)

    Anyway, as of now, you can just use the date field in problem filter page and give some date which is around 1 month back from now. This way you can get latest problems ! You can use this as a workaround !

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      7 months ago, # ^ |
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      Thank you, it also works. Hope you can come back more frequently. Cheers:)

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    2 months ago, # ^ |
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    Hi welcome back. Could you please take a look above request?

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      2 months ago, # ^ |
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      Hi chessma, I am working on it. I'll make this live within next 4-5 days. Thank you for your patience !! :D

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6 months ago, # |
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cpdojo not workings anymore :(

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    6 months ago, # ^ |
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    Hi EnDerBeaT, the problem is resolved now ! CPDojo is up and running !

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3 months ago, # |
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Hi Codeforces community, it's been a long since I added any updates to CPDojo.

Many of us struggle a lot while choosing problems for upskilling. So I have created a problemset recommender for suggesting which problem to solve for reaching some particular rating group (eg: Expert, CM, etc)

This is entirely data driven and is built using 40k+ active user's data.

I personally tried this for myself and found out that the recommended problems were overall balanced and if solved diligently it'll definitely help you out...

I just finished this work today (it maybe little unstable). Pls do let me know your thoughts and feedbacks.

It can be found under Recommender section in left-side navbar in cpdojo.com. User has to login using their gmail account to access this recommender feature.

In case of any bugs or errors pls reach out to me. Thank you !

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    3 months ago, # ^ |
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    A note to anyone who uses the recommendation system:

    It is a tool which will help you to reach the next rating group which you want to achieve, and it is NOT a tool which recommends problem properly if you select your current rating group.

    For eg: if you are Specialist, then your next rating group will be Expert and so you should choose Expert (and not your current rating i.e Specialist)

    Hope this helps to clarify any doubts that may arise.

    Reach out to me in case you need any assistance or want to provide feedback ! Thank you !

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3 months ago, # |
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.

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    3 months ago, # ^ |
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    Hey invisibleparadox, let me know if you have any issues or concerns. Thanks !

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3 months ago, # |
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Hi all, I am deploying some fixes in the backend code so CPDojo backend will be down for a while ! Thanks for your patience...

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3 months ago, # |
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Hi Codeforces community, I have added a big change to problem recommendation algorithm for better and accurate recommendations. Please make sure to check it out :)

Thank you !

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3 months ago, # |
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Deploying new changes to CPDojo... it'll be unavailable for sometime...

Will update here once it's up ! Thank you for your patience !

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3 months ago, # |
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Hi everyone,

CPDojo is up now !!

I've deployed a big change for changing whole look and feel of the website.

Also along with these changes I've added a fix in our recommendation system.

Since this is a very large change, pls try it out and let me know if you see any bugs or issues.

Will be helpful if you share your feedbacks and thoughts as well :)

Cheers !

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3 months ago, # |
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Auto comment: topic has been updated by cpdojo (previous revision, new revision, compare).

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2 months ago, # |
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Auto comment: topic has been updated by cpdojo (previous revision, new revision, compare).

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2 months ago, # |
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Why there isn't rating group for newbie.

Is it like I click on pupil if my next target is pupil?

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    2 months ago, # ^ |
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    Hi Ishan, Yeah it means that your next target is Pupil. So, it'll provide you with problems which will be of great value if you solve them and help you the best in reaching Pupil.

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2 months ago, # |
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Hi cpdojo,

I using the Problem recommender from quite some time; it is an excellent tool and recommending excellent problems, but here you can add a feature to show the difference of problems solved and remaining to solve. As we keep on solving, it gets difficult to classify problems which are solved and which need to be solved.

I hope this will help a lot of other users too.

Thank you.

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    2 months ago, # ^ |
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    Hi jagannath_123,

    I am very glad to hear that CPDojo recommender has helped you in your progress. Thanks for sharing your valuable feedback :)

    As for the feature request, it has been added and deployed as well.

    Peace !

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      2 months ago, # ^ |
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      Excellent work cpdojo, I appreciate for the the quick action you have taken.

      Wishing you a grate success Thank you

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2 months ago, # |
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it's very helpful thank you so much bro but there's one thing you should do: you definitely should add dark mode for your website!!

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    2 months ago, # ^ |
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    Hi Ag_Zenitsu, I am glad that CPDojo platform is helping you :) Thank you so much for letting me know !!!

    Implementing dark theme will take sometime, but it is in my pipeline. In near future it will surely be implemented.

    Peace !

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4 weeks ago, # |
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Problems from latest contests is not being added in filter page. Please fix this issue.

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    4 weeks ago, # ^ |
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    Hi tahmidarefin, can you please let me know which contest's problems you didnt find in filter ? It'll be helpful for debugging from my end. Thanks !

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      4 weeks ago, # ^ |
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      If I sort the problem by date column, the latest date start from September, 24. But many contests is happened after that date. Do you understand the issue, now?

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        4 weeks ago, # ^ |
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        Got the issue, will let u know once the issue is fixed ! Thanks

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        8 days ago, # ^ |
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        This problem is happening when a problem doesn't have it's rating updated. That's why newer problems were not visible because of no rating assigned to it.

        We are looking into this problem and make changes accordingly! Thank you for your patience :).

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8 days ago, # |
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filter and search is not working

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