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H

hjs4221

MasterCertified

Republic of Korea Air ForceSince May 5, 2026

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hjs4221's authored problems Submission history

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Current rating

2,084

-101

Peak 2,195 · Top 6.4%

UNRANKED0 Power

Solved problems

Titles

SCSC 2023 1st place

local_fire_departmentStreak

Current 0 days

SMTWTFS

Rating history

= 1530 (+330), SpecialistRank: 7DOJ Contest 1May 5, 2026, 12:00 PM = 1696 (+166), ExpertRank: 16DOJ Contest 2May 10, 2026, 8:00 PM = 1894 (+198), Candidate MasterRank: 8DOJ Beginner Contest 1May 17, 2026, 5:00 AM = 1947 (+53), Candidate MasterRank: 20KOI 2nd Round Mock 1 [High]May 22, 2026, 6:00 PM = 2082 (+135), MasterRank: 8DOJ Contest 3Jun 14, 2026, 2:00 PM = 2168 (+86), MasterRank: 11DOJ Beginner Contest 3Jun 14, 2026, 7:00 PM = 2195 (+27), MasterRank: 11DOJ Beginner Contest 4Jul 8, 2026, 9:00 PM = 2185 (-10), MasterRank: 14DOJ Contest 4Jul 19, 2026, 8:00 PM = 2084 (-101), MasterRank: 28EZ Contest Day 1Jul 25, 2026, 9:00 AM

OctNovDec2026FebMarAprMayJunJulAugSepOct

Longest solve streak: 1 days

1-23-56-910-14Freeze

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

Participation history

13 total

DOJ Contest 5Virtual

Aug 16, 2026, 7:25 AM

EZ Contest Day 1Window

Jul 25, 2026, 9:00 AM

DOJ Contest 4Window

Jul 19, 2026, 8:00 PM

Score 685Rank 14

DOJ Beginner Contest 4Rated

Jul 8, 2026, 9:00 PM

Score 642Rank 11

아니메컵 3기 ~2시에 코딩을 하는 건 이상해!~Rated

Jul 4, 2026, 2:00 PM

Score 900Rank 31

BCD 2Virtual

Jun 28, 2026, 1:18 PM

MathDOJUnrated

Jun 26, 2026, 6:00 PM

DOJ Beginner Contest 3Window

Jun 14, 2026, 7:00 PM

Score 717Rank 11

DOJ Contest 3Window

Jun 14, 2026, 2:00 PM

Score 542Rank 8

KOI 2nd Round Mock 1 [High]Window

May 22, 2026, 6:00 PM

Score 200Rank 20

DOJ Beginner Contest 1Window

May 17, 2026, 5:00 AM

Score 700Rank 8

DOJ Contest 2Rated

May 10, 2026, 8:00 PM

Score 144Rank 16

DOJ Contest 1Rated

May 5, 2026, 12:00 PM

Score 443Rank 7