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)
13471 AtCoder KUPC2020: L. Inside Story of Median Query
13470 AtCoder KUPC2020: K. Deleting Edges
13469 AtCoder KUPC2020: J. Median Query
13468 AtCoder KUPC2020: I. Coloring Paths
13467 AtCoder KUPC2020: H. Beans on the Grid
13466 AtCoder KUPC2020: G. Counting Angels
13465 AtCoder KUPC2020: F. GRIDMST
13464 AtCoder KUPC2020: E. Sequence Partitioning
13463 AtCoder KUPC2020: D. Stick Combination
13462 AtCoder KUPC2020: C. Grid and Substrings
13461 AtCoder KUPC2020: B. Numbers on Papers
13460 AtCoder KUPC2020: A. Classroom Distance
13459 AtCoder KUPC2019: L. タケノコ
13458 AtCoder KUPC2019: K. One or All
13457 AtCoder KUPC2019: J. Link-cut tworee
13456 AtCoder KUPC2019: I. encode/decode 2019
13455 AtCoder KUPC2019: H. 123パズル
13454 AtCoder KUPC2019: G. ABCのG問題
13453 AtCoder KUPC2019: F. カズマ王国の陥落
13452 AtCoder KUPC2019: E. 根付き森二人用ゲーム
13451 AtCoder KUPC2019: D. Maximin Game
13450 AtCoder KUPC2019: C. てんびんばかり
13449 AtCoder KUPC2019: B. ナップサック問題
13448 AtCoder KUPC2019: A. November Festival
13447 AtCoder KUPC2018: M. 整数と根付き木
13446 AtCoder KUPC2018: L. 凸包が映し出される平面
13445 AtCoder KUPC2018: K. 光と闇の調和
13444 AtCoder KUPC2018: J. ニム?
13443 AtCoder KUPC2018: I. League of Kyoto
13442 AtCoder KUPC2018: H. カラフル数列
13441 AtCoder KUPC2018: G. 数列を構成する問題
13440 AtCoder KUPC2018: F. カード集め
13439 AtCoder KUPC2018: E. 転倒数
13438 AtCoder KUPC2018: D. ロストテクノロジー
13437 AtCoder KUPC2018: C. 七目
13436 AtCoder KUPC2018: B. 弾幕ゲーム
13435 AtCoder KUPC2018: A. 立て看板
13434 AtCoder KUPC2017: L. Coin Game 2017
13433 AtCoder KUPC2017: K. Xor Summation Pattern
13432 AtCoder KUPC2017: J. Paint Red and Make Graph
13431 AtCoder KUPC2017: I. Activate It!!
13430 AtCoder KUPC2017: H. Make a Potion
13429 AtCoder KUPC2017: G. encode/decode 2017
13428 AtCoder KUPC2017: F. 575
13427 AtCoder KUPC2017: E. Treasure Hunt
13426 AtCoder KUPC2017: D. Sanmoku
13425 AtCoder KUPC2017: C. Best Password
13424 AtCoder KUPC2017: B. Camphor Tree
13423 AtCoder KUPC2017: A. Credits
13422 AtCoder KUPC2016: K. Hundred Eyes Monster
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