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Welcome to WYKOJ!
Recent Solves
Time
User
Task
Language
2026-05-29 16:25:06
s25f04 - Tam Shun Kan
C22P2 - Plastic Permutation
C++
2026-05-25 21:07:33
s20l04 - Cheng Chun Wan
C23A5 - Goodest English (April Fools Series)
C++
2026-05-25 20:33:47
s20l04 - Cheng Chun Wan
C23A3 - Catch Rock If You Can (April Fools Series)
C++
2026-05-25 10:31:26
s25f04 - Tam Shun Kan
A003 - Henry's Sprint II
C++
2026-05-25 09:55:34
s25f04 - Tam Shun Kan
C2625 - Buying Stocks
C++
2026-05-24 20:38:13
s25f04 - Tam Shun Kan
C2343 - Unique Words
C++
2026-05-23 18:01:09
s25f18 - Ting Tak Yin
B014 - Funny Number
C++
2026-05-23 17:51:09
s25f18 - Ting Tak Yin
B012 - Standard Deviation
C++
2026-05-23 17:37:46
s25f18 - Ting Tak Yin
B008 - Maximum Circle Area
C++
2026-05-23 17:19:42
s25f18 - Ting Tak Yin
B005 - Quadrants
C++
2026-05-23 16:55:56
s25f18 - Ting Tak Yin
C22P1 - Plastic Area
C++
2026-05-23 15:49:41
s21r36 - Ting Po lun Kirin
A002 - Modular Arithmetic
C++
Contests
Upcoming
2026 Mini Comp 5 (Pre-HKSC)
Starts in
please do not modify items that could disrupt the normal function of the judge! anyone who still have the credits items, please add it here!