sberens's blog

Daily Codeforces Problem Email
By sberens, history, 16 months ago, In English

Happy New Year everyone!

In order to train more consistently this year, I made a tool that emails you a Codeforces problem every day. You just have specify what rating and tags you want.

Before making this tool I would use the TLE bot, but giving it the same query every day was annoying (especially on mobile). This way you can wake up with a Codeforces problem ready to go!

Here it is: https://www.dailycodeforces.com/

Any feedback is appreciated!

  • Vote: I like it
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  • Vote: I do not like it

Comments Comments (22)
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16 months ago, # |
  Vote: I like it +30 Vote: I do not like it

I suggest adding the option for intervals of rsting as pure rating is kinda cringe (some 1600 are very hard, some 1800 are very easy, so maybe you would want to search between 1600 and 1800 because you'd see more types of problems whatnot, 1700 are very little)

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16 months ago, # |
← Rev. 2   Vote: I like it +41 Vote: I do not like it

Get the handle of the user to mail unsolved problems only.

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16 months ago, # |
  Vote: I like it +37 Vote: I do not like it

maybe you might want to add this feature , where you link your codeforces account and it does not give you a problem you solved before

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16 months ago, # |
  Vote: I like it +37 Vote: I do not like it

Nice product there! But the first problem I receive is from an April fool contest lol. It would be very nice to exclude problems from this kind of contest.

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    16 months ago, # ^ |
    ← Rev. 2   Vote: I like it +32 Vote: I do not like it

    Also removing Kotlin contests would be nice

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    16 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Is there a list of such contests that I can use? (All the april fools, kotlin, quantum contests etc...)

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

      Update: should be fixed now. If anyone is curious, you can use the ratingChanges api endpoint to see if a contest is rated.

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16 months ago, # |
  Vote: I like it +8 Vote: I do not like it

Do problems come to my gmail? I'm asking cause I can't find problems on my gmail.

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    16 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    There was some sort of delivery failure, it should be fixed now. Let me know if you received a problem.

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      16 months ago, # ^ |
        Vote: I like it +9 Vote: I do not like it

      I havnen't received mail. I registered yesterday and added 3 problems on website.

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        16 months ago, # ^ |
          Vote: I like it 0 Vote: I do not like it

        There were some problems with my hosting service that should be resolved now, let me know if you got your problems.

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          16 months ago, # ^ |
            Vote: I like it 0 Vote: I do not like it

          Yes, I have received today's mail with 3 problems.

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16 months ago, # |
  Vote: I like it 0 Vote: I do not like it

can you allow easy pwd here?

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16 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Nice, thanks a lot!!

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16 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Thank u

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16 months ago, # |
  Vote: I like it +24 Vote: I do not like it

This is great! Since the problems are handed to me, I am actually starting to do problems consistently xD I have one suggestion, it would be nice if we have the option to set at what time we receive the daily problems, taking into account different time zones. That way, everyone can receive them at a convenient time for them, no matter where they are located.

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4 months ago, # |
  Vote: I like it 0 Vote: I do not like it

For the last 10 days, the service has stopped delivering emails. What happpened :(?

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    4 months ago, # ^ |
      Vote: I like it +10 Vote: I do not like it

    Thanks for notifying me — it should be fixed now! For some reason my secrets manager got disconnected from github actions causing the cron job to fail.

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      4 months ago, # ^ |
        Vote: I like it 0 Vote: I do not like it

      I thank you sir for sustaining this epic project

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4 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Super cool!

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25 hours ago, # |
  Vote: I like it 0 Vote: I do not like it

Why everytime I got problems from only old contests? Can you please share from new contests?

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