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한국디지털미디어고등학교Since May 4, 2026

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Codeforces321 AtCoderiAi Discord이현서 | 321

a's authored problems Submission history

SJUPC 2026

Current rating

2,079

+41

Peak 2,192 · Top 6.6%

AMATEUR III153.28 Power

Solved problems

Titles

APIO 2026 Bronze Medal, 62nd placeNYPC 2022 Bronze Award (Junior)

Equipped gear

BackgroundSJUPC 2026 8

local_fire_departmentStreak

Current 0 days

SMTWTFS

Rating history

= 1513 (+313), SpecialistRank: 9DOJ Contest 1May 5, 2026, 12:00 PM = 1740 (+227), ExpertRank: 12KOI 2nd Round Mock 1 [High]May 22, 2026, 6:00 PM = 1877 (+137), Candidate MasterRank: 14DOJ Beginner Contest 2May 30, 2026, 1:00 PM = 1944 (+67), Candidate MasterRank: 19DOJ Beginner Contest 3Jun 14, 2026, 7:00 PM = 1966 (+22), Candidate MasterRank: 25아니메컵 3기 ~2시에 코딩을 하는 건 이상해!~Jul 4, 2026, 2:00 PM = 1967 (+1), Candidate MasterRank: 18KOI 2nd Round Mock 2 [High]Jul 17, 2026, 9:00 AM = 2014 (+47), MasterRank: 20EZ Contest Day 1Jul 25, 2026, 9:00 AM = 2120 (+106), MasterRank: 12DOJ Contest 5Aug 1, 2026, 2:00 PM = 2192 (+72), MasterRank: 14DOJ Beginner Contest 5Aug 8, 2026, 10:00 AM = 2085 (-107), MasterRank: 33DOJ Beginner Contest 6Aug 30, 2026, 10:00 AM = 2096 (+11), MasterRank: 21DOJ Beginner Contest 7Sep 6, 2026, 10:00 AM = 2057 (-39), MasterRank: 35DOJ Beginner Contest 8Sep 13, 2026, 10:00 AM = 2122 (+65), MasterRank: 13DOJ Beginner Contest 9Sep 20, 2026, 10:00 AM = 2038 (-84), MasterRank: 41DOJ Beginner Contest 10Sep 27, 2026, 10:00 AM = 2079 (+41), MasterRank: 13DOJ Beginner Contest 11Oct 4, 2026, 10:00 AM

OctNovDec2026FebMarAprMayJunJulAugSepOct

Longest solve streak: 2 days

1-23-56-910-14Freeze

Solve activity is counted from 06:00 in Korea time.

Participation history

18 total

SCSC 2026 mini contest #1Window

Oct 9, 2026, 12:00 AM

Score 236Rank 6

제3회 흐즈로컵 (The 3rd Chromate Cup) Heuristic DivisionUnrated

Oct 9, 2026, 12:00 AM

Score 100Rank 4

DOJ Beginner Contest 11Window

Oct 4, 2026, 10:00 AM

Score 672Rank 13

DOJ Beginner Contest 10Window

Sep 27, 2026, 10:00 AM

Score 1500Rank 41

AI slop 2Unrated

Sep 25, 2026, 2:40 AM

Score 29496200Rank 27

DOJ Beginner Contest 9Window

Sep 20, 2026, 10:00 AM

Score 803Rank 13

DOJ Beginner Contest 8Window

Sep 13, 2026, 10:00 AM

Score 615Rank 35

DOJ Beginner Contest 7Window

Sep 6, 2026, 10:00 AM

Score 597Rank 21

DOJ Beginner Contest 6Window

Aug 30, 2026, 10:00 AM

Score 400Rank 33

DOJ Beginner Contest 5Window

Aug 8, 2026, 10:00 AM

Score 525Rank 14

DOJ Contest 5Window

Aug 1, 2026, 2:00 PM

Score 676Rank 12

EZ Contest Day 1Window

Jul 25, 2026, 9:00 AM

Score 125Rank 20

KOI 2nd Round Mock 2 [High]Window

Jul 17, 2026, 9:00 AM

Score 166Rank 18

아니메컵 3기 ~2시에 코딩을 하는 건 이상해!~Rated

Jul 4, 2026, 2:00 PM

Score 1100Rank 25

DOJ Beginner Contest 3Window

Jun 14, 2026, 7:00 PM

Score 674Rank 19

DOJ Beginner Contest 2Window

May 30, 2026, 1:00 PM

Score 700Rank 14

KOI 2nd Round Mock 1 [High]Window

May 22, 2026, 6:00 PM

Score 256Rank 12

DOJ Contest 1Rated

May 5, 2026, 12:00 PM

Score 405Rank 9