Starlight: List of Problems

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Over 20,000 problems available. AMC 8/10/12 and AIME problems from 2010-2023; USAJMO/USAMO problems from 2002-2023 available. USACO problems from 2014 to 2023 (all divisions). Codeforces, AtCoder, DMOJ problems are added daily around 04:00 AM UTC, which may cause disruptions.

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ID Problem Name (click to add insights/hints, view summary of insights/hints and similar problems)
13121 AtCoder JOISC2011: guess. 数当て (Guess Them All)
13120 AtCoder JOISC2011: dragon. ドラゴン (Dragon)
13119 AtCoder JOISC2011: deciphering. 解読 (Deciphering)
13118 AtCoder JOISC2011: bookshelf. 本棚 (Bookshelf)
13117 AtCoder JOISC2011: banner. 横断幕 (Banner)
13116 AtCoder JOISC2011: apples. リンゴの出荷 (Apples)
13115 AtCoder JOISC2010: stairs. 階段 (Stairs)
13114 AtCoder JOISC2010: simroad5. シムロード (SimRoad)
13113 AtCoder JOISC2010: simroad4. シムロード (SimRoad)
13112 AtCoder JOISC2010: simroad3. シムロード (SimRoad)
13111 AtCoder JOISC2010: simroad2. シムロード (SimRoad)
13110 AtCoder JOISC2010: simroad1. シムロード (SimRoad)
13109 AtCoder JOISC2010: sengoku. 戦国時代 (Sengoku)
13108 AtCoder JOISC2010: regions. 地域 (Regions)
13107 AtCoder JOISC2010: poster. JOIポスター (JOI Poster)
13106 AtCoder JOISC2010: plugs. プラグ (Plugs)
13105 AtCoder JOISC2010: lake. 湖 (Lake)
13104 AtCoder JOISC2010: highway. 高速道路 (Highway)
13103 AtCoder JOISC2010: hideseek. かくれんぼ (Hide-and-seek)
13102 AtCoder JOISC2010: finals. 本選会場 (Finals)
13101 AtCoder JOISC2010: dna. DNAの合成 (DNA Synthesizer)
13100 AtCoder JOISC2010: contest. コンテスト (Contest)
13099 AtCoder JOISC2010: aplusb. 足し算 (a + b problem)
13098 AtCoder JOISC2009: territory. 縄張り (Territory)
13097 AtCoder JOISC2009: starry_sky. 星空 (Starry Sky)
13096 AtCoder JOISC2009: stamps. 判子 (はんこ) (Stamps)
13095 AtCoder JOISC2009: ski. スキー (Ski)
13094 AtCoder JOISC2009: sequence. 数列 (Sequence)
13093 AtCoder JOISC2009: pyramid. 貫きピラミッド (Pyramid)
13092 AtCoder JOISC2009: logo. ロゴマーク (Logo)
13091 AtCoder JOISC2009: distribution. 冊子の配布 (Distribution)
13090 AtCoder JOISC2009: contest. コンテスト (Contest)
13089 AtCoder JOISC2009: chopsticks. 塗り箸 (Chopsticks)
13088 AtCoder JOISC2009: advertisement. 宣伝 (Advertisement)
13087 AtCoder JOISC2009: abduction. 誘拐 (Abduction)
13086 AtCoder JOISC2008: typhoon. 台風 (Typhoon)
13085 AtCoder JOISC2008: sheet. 色紙 (Sheet)
13084 AtCoder JOISC2008: ruins. 最古の遺跡2 (Ruins)
13083 AtCoder JOISC2008: origami. 折り紙 (Origami)
13082 AtCoder JOISC2008: nile. ナイルドットコム (Nile.Com)
13081 AtCoder JOISC2008: nightman. 夜警 (Nightman)
13080 AtCoder JOISC2008: fraction. 分数 (Fraction)
13079 AtCoder JOISC2008: flu. インフルエンザ (Flu)
13078 AtCoder JOISC2008: election5. 選挙 (Election)
13077 AtCoder JOISC2008: election4. 選挙 (Election)
13076 AtCoder JOISC2008: election3. 選挙 (Election)
13075 AtCoder JOISC2008: election2. 選挙 (Election)
13074 AtCoder JOISC2008: election1. 選挙 (Election)
13073 AtCoder JOISC2008: committee. 委員会 (Committee)
13072 AtCoder JOISC2008: cheating. カンニング対策 (Cheating)
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