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k2020
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Oleh Chumachenko
k2020
Ukraine
Ukraine
Joined Dec 19, 2020
Achievements (2)
Problem Solver 2Problem Solver
OverviewAchievementsPosts
Problems228
Submissions402
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k2020 solved problem Repair (#500) on first attempt4 日前
k2020 solved problem Кава (#10922) on first attempt8 日前
k2020 solved problem Four-digit Armstrong numbers (#8642) on first attempt15 日前
k2020 solved problem Egypt (#1265) on 2 attempt15 日前
k2020 has joined contest Educational Round #115 日前
k2020 has joined contest Educational Round #215 日前
k2020 solved problem Number of maximums (#7832) on first attempt15 日前
k2020 has joined contest Educational Round #315 日前
k2020 solved problem Windy weather (#5713) on first attempt1 か月前
k2020 solved problem Find Minimum (#5328) on first attempt1 か月前
k2020 solved problem Smallest divisor (#8927) on 3 attempt1 か月前
k2020 solved problem Modular Exponentiation (#273) on first attempt1 か月前
k2020 solved problem Print squares and cubes (#8532) on first attempt1 か月前
k2020 solved problem Stand in order (#5325) on 5 attempt1 か月前
k2020 solved problem Perfect square (#8877) on 3 attempt1 か月前
k2020 solved problem Integer (#8876) on 2 attempt1 か月前
k2020 solved problem Conditional statement - 5 (#8613) on 2 attempt1 か月前
k2020 solved problem Two digits in a row (#8626) on 3 attempt1 か月前
k2020 solved problem At least one odd (#8629) on first attempt1 か月前
k2020 solved problem Delete one digit (#8625) on first attempt1 か月前
k2020 solved problem At least two equal digits (#8624) on first attempt1 か月前
k2020 solved problem Square of maximum (#8623) on first attempt1 か月前
k2020 solved problem Divisibility by digits (#8622) on first attempt1 か月前
k2020 solved problem Two identical digits (#8621) on first attempt1 か月前
k2020 solved problem Three identical digits (#8620) on first attempt1 か月前