Basecamp
    Галоўная
    Задачы
    Спаборніцтвы
    Курсы
    Рэйтынг
    Допісы
    Крама
    Discord
chyckchyryk
Sign in
Roman Derkach
chyckchyryk
Candidate
Ukraine
Ukraine
Joined Aug 8, 2025
Achievements (2)
Problem Solver 2Problem Solver
OverviewRatingAchievementsPosts
Rating
1764
Problems222
Submissions301
жні
вер
кас
ліс
сне
2021
лют
сак
кра
май
чэр
ліп
жні
вер
кас
ліс
сне
2022
лют
сак
кра
май
чэр
ліп
жні
вер
кас
ліс
сне
2023
лют
сак
кра
май
чэр
ліп
жні
вер
кас
ліс
сне
2024
лют
сак
кра
май
чэр
ліп
жні
вер
кас
ліс
сне
2025
лют
сак
кра
май
чэр
ліп
жні
вер
кас
ліс
сне
2026
лют
сак
кра
май
чэр

Rating evolution

chyckchyryk has completed the contest Blitz Round #21 and scored 575 points1 месяц таму
chyckchyryk solved problem Duel of Frequencies (#12467) on first attempt1 месяц таму
chyckchyryk solved problem Echoes of the Square (#12468) on first attempt1 месяц таму
chyckchyryk solved problem The Glitchy Robot (#12466) on first attempt1 месяц таму
chyckchyryk solved problem The Efficient Steps (#12465) on first attempt1 месяц таму
chyckchyryk has joined contest Blitz Round #211 месяц таму
chyckchyryk has completed the contest Blitz Round #20 and scored no score2 месяцы таму
chyckchyryk has joined contest Blitz Round #202 месяцы таму
chyckchyryk has joined contest UOI 2026. Day 22 месяцы таму
chyckchyryk has completed the contest Blitz Round #19 and scored no score2 месяцы таму
chyckchyryk has joined contest Blitz Round #192 месяцы таму
chyckchyryk has completed the contest Blitz Round #18 and scored 700 points3 месяцы таму
chyckchyryk solved problem Nasser's OR Removal (#12433) on first attempt3 месяцы таму
chyckchyryk solved problem Rufo's massive (#12430) on 5 attempt3 месяцы таму
chyckchyryk solved problem Nasser's Prime Slices (#12432) on 5 attempt3 месяцы таму
chyckchyryk has joined contest Blitz Round #183 месяцы таму
chyckchyryk has completed the contest Weekend Practice #22 and scored no score3 месяцы таму
chyckchyryk has joined contest Weekend Practice #223 месяцы таму
chyckchyryk solved problem Sum of squares Cnk (#11271) on first attempt3 месяцы таму
chyckchyryk solved problem City Horizon (#7747) on first attempt3 месяцы таму
chyckchyryk solved problem Square (#7757) on first attempt3 месяцы таму
chyckchyryk solved problem Testing System (#4416) on first attempt3 месяцы таму
chyckchyryk solved problem Sequence (#1083) on 7 attempt3 месяцы таму
chyckchyryk solved problem Perfect square (#8877) on first attempt3 месяцы таму
chyckchyryk solved problem Sum and amount (#8684) on first attempt3 месяцы таму