Basecamp
    Home
    Problems
    Contests
    Courses
    Rating
    Posts
    Store
    Discord
chas-_-
Sign in
Artem
chas-_-
Candidate
Ukraine
Ukraine
Joined Aug 7, 2020
Achievements (54)
Hello WorldEasy StartTough NutHardmodeHalfway ThereBy a whiskerProblem SolverSea LionSnake TamerLong Time No ACPhoto FinishAgainst the Clock
OverviewRatingAchievements

Rating
1709
Problems170
Submissions240
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
Jul

Rating evolution

chas-_- earned achievement Against the Clock1 month ago
chas-_- earned achievement Specialist1 month ago
chas-_- earned achievement Student1 month ago
chas-_- earned achievement Explorer1 month ago
chas-_- earned achievement Photo Finish1 month ago
chas-_- has completed the contest Blitz Round #22 and scored no score2 months ago
chas-_- has joined contest Виток 3, Шаг 1 - Стек2 months ago
chas-_- solved problem Quad (#11854) on first attempt2 months ago
chas-_- solved problem Rooks (#11797) on 2 attempt2 months ago
chas-_- has joined contest Виток 3, Шаг 3 - Множество set и мультимножество multiset2 months ago
chas-_- has joined contest Виток 3, Шаг 4 - Множество и мультимножество2 months ago
chas-_- has joined contest Виток 3, Шаг 4 - Множество set и мультимножество multiset2 months ago
chas-_- has joined contest Blitz Round #192 months ago
chas-_- has joined contest Blitz Round #212 months ago
chas-_- has joined contest Blitz Round #222 months ago
chas-_- solved problem Smallest divisor (#8927) on 5 attempt2 months ago
chas-_- has joined contest EJOI 2025 - Day 22 months ago
chas-_- has joined contest EJOI 2025 - Day 12 months ago
chas-_- solved problem Invert a bit (#5316) on first attempt3 months ago
chas-_- solved problem Set a bit (#5315) on first attempt3 months ago
chas-_- solved problem 2^k + 2^n (#5314) on first attempt3 months ago
chas-_- solved problem Golden sand (#3736) on 3 attempt4 months ago
chas-_- solved problem Knapsack (#4831) on first attempt4 months ago
chas-_- has joined contest Blitz Round #164 months ago
chas-_- has joined contest Blitz Round #174 months ago