Recently added problemsSaved problemsWorkbooks

Categories DLC Contests Groups Teams Board

Solved Problem RankingStreak rankingDOJ Power ranking

Call for TasksLogin Register

DOJ

Community online judge with OI-style subtask scoring, Elo ratings, and Discord-backed certification.

Problems

Problems Categories

Community

Contests Ranking Board Notices Host an external contest Guide

Account

Login Register Judge Status

Policy

Terms of Service DLC Rules Privacy API documentation Language runtimes Contest rank rewards Rating and performance

© 2026 DOJ

All rights reserved

Green

PupilNot CertifiedDiscord not linked

No organizationSince October 14, 2026

External accounts

Codeforcesforsterine AtCoderforsterine

Green's authored problems Submission history

「【코딩】의 마법을 지닌 마법소녀」

그림 ·ともえ캐릭터 출처 ·solved.ac배경 출처 ·Acacia

Current rating

1,200

+0

Peak 1,200 · Top 52.6%

UNRANKED0 Power

Solved problems

Titles

No equipped titles

Equipped gear

Background「【코딩】의 마법을 지닌 마법소녀」 0

local_fire_departmentStreak

Current 0 days

SMTWTFS

Rating history

No rating history yet.

OctNovDec2026FebMarAprMayJunJulAugSepOct

Longest solve streak: 2 days

1-23-56-910-14Freeze

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

Participation history

2 total

제5회 디미고 프로그래밍 챌린지 Open ContestUnrated

Oct 17, 2026, 1:00 PM

Manosaba Beginner ContestWindow

Oct 16, 2026, 6:00 AM