Basecamp
    Home
    Problems
    Contests
    Courses
    Rating
    Posts
    Store
    Discord
Alexander2021
Sign in
Александр Гауптман
Alexander2021
Ukraine
Ukraine
Joined Jan 20, 2021
Achievements (2)
Problem Solver 2Problem Solver
OverviewAchievementsPosts
Problems460
Submissions836
Feb
Mar
Apr
May
Jun
Jul
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
Alexander2021 solved problem Fun function - 2 (#11297) on first attempt1 month ago
Alexander2021 solved problem Fun function (#8304) on 2 attempt1 month ago
Alexander2021 solved problem Recursion - 3 (#11250) on first attempt1 month ago
Alexander2021 solved problem Recursion - 2 (#11249) on first attempt1 month ago
Alexander2021 solved problem Function f(n) (#10165) on first attempt1 month ago
Alexander2021 solved problem Hailstone HOTPO (#5123) on first attempt1 month ago
Alexander2021 solved problem How many sixes? (#7228) on 5 attempt2 months ago
Alexander2021 solved problem Simple Addition (#1517) on 2 attempt2 months ago
Alexander2021 solved problem Function-10 (#2999) on 2 attempt2 months ago
Alexander2021 solved problem Recursion - 1 (#8609) on first attempt2 months ago
Alexander2021 solved problem Forbidden Strings (#1554) on 4 attempt2 months ago
Alexander2021 solved problem Symmetry (#2588) on 2 attempt2 months ago
Alexander2021 solved problem Bad Substring (#1343) on first attempt2 months ago
Alexander2021 solved problem Handshake (#1532) on first attempt2 months ago
Alexander2021 solved problem Fibonacci numbers: the last digit (#4529) on first attempt2 months ago
Alexander2021 solved problem Catalan numbers (#9643) on 4 attempt2 months ago
Alexander2021 solved problem Factorial (#1658) on 3 attempt2 months ago
Alexander2021 solved problem Sum of squares (#4725) on first attempt2 months ago
Alexander2021 solved problem Paths on a Grid (#10668) on first attempt2 months ago
Alexander2021 solved problem Sum of squares Cnk (#11271) on 5 attempt2 months ago
Alexander2021 solved problem Binomial Sum (#11488) on first attempt2 months ago
Alexander2021 solved problem C0n + ... + Cnn (#9892) on 2 attempt2 months ago
Alexander2021 solved problem Binomial coefficients 1 (#318) on 2 attempt2 months ago
Alexander2021 solved problem Равлики і порив вітру. (#11395) on 2 attempt2 months ago
Alexander2021 solved problem Snails in the Fog (#11394) on first attempt2 months ago