DOJ logoDOJ
Problems
Recently added problemsSaved problems
CategoriesDLCContestsGroupsTeamsBoard
Ranking
Solved Problem RankingStreak rankingDOJ Power ranking
Status
Call for TasksLoginRegister
DOJ logoDOJ

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

Problems
ProblemsCategories
Community
ContestsRankingBoardNoticesHost an external contestGuide
Account
LoginRegisterJudge Status
Policy
Terms of ServiceDLC RulesPrivacyAPI documentationLanguage runtimesContest rank rewardsRating and performance
© 2026 DOJ
All rights reserved
DOJ/Beginner Contest DOJ/BCD 7
PROBLEMSET

BCD 7

Leaf category100 min virtualHidden scoreboard
[0]

Virtual participation

Log in required

Scoreboard

Standings
#ProblemDifficultyAcceptanceSolvedStatus
A4949Bronze IV
92%
88Opens after virtual start
Btourist vs rainboytouristvsrainboyBronze I
86%
79Opens after virtual start
CTreasure HunttreasurehuntGold III
58%
52Opens after virtual start
DTile CoveringtilecoverPlatinum V
37%
30Opens after virtual start
EMerging IntervalsintervalmergeGold II
34%
35Opens after virtual start
FVanishing StringvanishingstringPlatinum V
41%
25Opens after virtual start
GDifference PyramiddifferencepyramidPlatinum III
20%
22Opens after virtual start
HCrop HarvestcropharvestPlatinum III
37%
20Opens after virtual start
IOverwrite QueriesoverwriteUnrated
0%
0Opens after virtual start
Open linked main contest