boocoo's blog

By boocoo, history, 7 weeks ago, In English
  • Codeforces (also has SGU under acmsguru)

  • Atcoder (also has JOI problems)

  • DMOJ (IOI and ICPC problems)

  • Kattis (ICPC problems)

  • Advent of Code

  • Timus

  • Project Euler

  • dunjudge.me

  • UVa Online Judge/Online Judge

  • Topcoder

  • CodeChef

  • oj.uz (IOI and ICPC)

  • acmicpc.net (ICPC problems like Live Archive)

  • USACO

  • Leetcode

  • Hackerrank

  • e-olymp (olympiad)

  • toph.co

  • acmp.ru

  • judtge.org

  • URI Online Judge (ICPC)

  • SPOJ

  • PEG (migrated to DMOJ)

  • CSES

 
 
 
 
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7 weeks ago, # |
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Check this out: Link

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7 weeks ago, # |
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Auto comment: topic has been updated by boocoo (previous revision, new revision, compare).

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7 weeks ago, # |
Rev. 3   Vote: I like it +1 Vote: I do not like it

I know some more-
Hackerearth
CSAcademy
Yukicoder
TLX
Codedrills
Poj
Openjudge
SCU
NBUT
HDU
UOJ
Library checker(this is a very useful one)
you can find a bigger list here

and since you added leetcode to online judge, here are some more belonging to that category
interviewbit, geeks for geeks, coding blocks, prepbytes

ps-kindly add links to your post so that we can check the sites out, and (maybe) make it a bit more neat and readable. Oh, and "acmicpc.net" is called Baekjoon Online Judge.

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7 weeks ago, # |
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I know Acepta el reto in Spanish.

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7 weeks ago, # |
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also thabit