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Solved Problems

In my spare time I enjoy solving programming puzzles, often algorithmic or mathematical in nature. Here is an automatically updated list of the problems I’ve solved on some of my favorite online judges. In total there are 2808 problems listed below.

Project Euler
Project Euler is probably the reason I started enjoying mathematics and solving mathematical problems in the first place. It has a lot of very high quality mathematical problems, and a new problem is added almost weekly. I’m currently the highest ranked Project Euler member from Iceland.

SuprDewd on Project Euler

Solved problems (400)
Kattis is currently my favorite online judge. Unfortunately there aren’t many active coders on Kattis, which is a pity since it holds a lot of high quality algorithmic problems. I’m currently the second highest ranked user on Kattis. Also see my profile page.

Solved problems (1142)
UVa Online Judge
UVa Online Judge is an old online judge with lots of algorithmic problems. See my profile page.

Solved problems (785)
Codeforces probably has the most active competitive programming community. I occasionally participate in their contests. See my profile page.

Solved problems (370)


  1. Xiao_Mu Xiao_Mu


    Could you please tell me how to make an automatically updated list like yours?

    Best regards!

  2. S.C S.C

    That’s a brilliant page.
    I’m also interested in the list above.Can you tell me how it was formed?

  3. Lam Gia Thuan Lam Gia Thuan

    It would be great if you can create a blog of hints for problems that you have solved.

  4. michael michael

    hey man i’ve been attacking the prolbem “exponial” on kattis for 5 hours now and was finally able to solve all the given testcases. however, i still failed some blackbox tests apparently. i’ve looked all over the internet but was unable to find anything. test cases are extremely hard to construct on my own so could you give me some test cases (or even better the source code for that problem)?
    if you can run these cases on your code and tell me the answers that’d be great:
    56 741
    13 45
    167 569
    thanks a lot!!!

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