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Stepan_Semchuk
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Stefan
Stepan_Semchuk
Ukraine
Joined Nov 8, 2023
Achievements (52)
Overview
Achievements
Posts
Problems
97
Submissions
117
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Stepan_Semchuk
solved hidden problem on first attempt
4 日前
Stepan_Semchuk
has joined contest
EJOI 2026 - Day 1
4 日前
Stepan_Semchuk
has joined contest
UOI 2025, Day 1
9 か月前
Stepan_Semchuk
solved problem
Good Dish (#11841)
on 3 attempt
9 か月前
Stepan_Semchuk
has joined contest
Multi-subject Olympiad "Kvanta-2025"
9 か月前
Stepan_Semchuk
solved problem
The number of ones (#44)
on first attempt
10 か月前
Stepan_Semchuk
solved problem
Mouse and corns (#15)
on 5 attempt
2 年前
Stepan_Semchuk
solved problem
Competitors’ quantity of the Olympiad (#43)
on 4 attempt
2 年前
Stepan_Semchuk
solved problem
Unhappy Bus (#247)
on first attempt
2 年前
Stepan_Semchuk
solved problem
All OK (#8931)
on 3 attempt
2 年前
Stepan_Semchuk
solved problem
Professor and batteries (#9406)
on first attempt
2 年前
Stepan_Semchuk
solved problem
Professor and balloons (#9405)
on first attempt
2 年前
Stepan_Semchuk
solved problem
Opposite number (#8807)
on 3 attempt
2 年前
Stepan_Semchuk
solved problem
School Olympiad (#6272)
on first attempt
2 年前
Stepan_Semchuk
solved problem
Diagonals (#942)
on first attempt
2 年前
Stepan_Semchuk
solved problem
Number of odd digits (#8889)
on first attempt
2 年前
Stepan_Semchuk
solved problem
Third from right (#8602)
on first attempt
2 年前
Stepan_Semchuk
solved problem
Two digits from four digits (#949)
on first attempt
2 年前
Stepan_Semchuk
solved problem
Perimeter of rectangle (#7943)
on first attempt
2 年前
Stepan_Semchuk
solved problem
Sum of two integers (#8804)
on 6 attempt
2 年前
Stepan_Semchuk
solved problem
School concert (#8810)
on first attempt
2 年前
Stepan_Semchuk
solved problem
Tourist (#206)
on 2 attempt
2 年前
Stepan_Semchuk
solved problem
Positive and Negative Numbers (#8895)
on first attempt
2 年前
Stepan_Semchuk
solved problem
None of the two conditions (#8894)
on first attempt
2 年前
Stepan_Semchuk
solved problem
At least one condition out of two (#8892)
on first attempt
2 年前