Basecamp
    Home
    Problems
    Contests
    Courses
    Rating
    Posts
    Store
    Discord
yevhen_ostash
Sign in
yevhen
yevhen_ostash
Ukraine
Ukraine
Joined Nov 5, 2025
OverviewPosts
Problems4
Submissions3
Aug
Sep
Oct
Nov
Dec
2021
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2022
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2023
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2024
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2025
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2026
Feb
Mar
Apr
May
Jun
yevhen_ostash solved problem Sequence (#1083) on first attempt3 months ago
yevhen_ostash solved problem Sum of squares Cnk (#11271) on 2 attempt3 months ago
yevhen_ostash solved problem Perfect square (#8877) on first attempt3 months ago
yevhen_ostash solved problem Sum and amount (#8684) on first attempt3 months ago
yevhen_ostash has joined contest Educational Round #103 months ago
yevhen_ostash has joined contest Educational Round #94 months ago