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)
23621 USACO 2020 December Contest, Platinum: Cowmistry
23620 USACO 2020 December Contest, Platinum: Spaceship
23619 USACO 2020 December Contest, Platinum: Sleeping Cows
23618 USACO 2019 US Open Contest, Bronze: Cow Evolution
23617 USACO 2019 US Open Contest, Bronze: Milk Factory
23616 USACO 2019 US Open Contest, Bronze: Bucket Brigade
23615 USACO 2019 US Open Contest, Silver: Fence Planning
23614 USACO 2019 US Open Contest, Silver: Cow Steeplechase II
23613 USACO 2019 US Open Contest, Silver: Left Out
23612 USACO 2019 US Open Contest, Gold: Balancing Inversions
23611 USACO 2019 US Open Contest, Gold: I Would Walk 500 Miles
23610 USACO 2019 US Open Contest, Gold: Snakes
23609 USACO 2019 US Open Contest, Platinum: Valleys
23608 USACO 2019 US Open Contest, Platinum: Compound Escape
23607 USACO 2019 US Open Contest, Platinum: Tree Boxes
23606 USACO 2019 February Contest, Bronze: Measuring Traffic
23605 USACO 2019 February Contest, Bronze: The Great Revegetation
23604 USACO 2019 February Contest, Bronze: Sleepy Cow Herding
23603 USACO 2019 February Contest, Silver: The Great Revegetation
23602 USACO 2019 February Contest, Silver: Painting the Barn
23601 USACO 2019 February Contest, Silver: Sleepy Cow Herding
23600 USACO 2019 February Contest, Gold: Painting the Barn
23599 USACO 2019 February Contest, Gold: Dishwashing
23598 USACO 2019 February Contest, Gold: Cow Land
23597 USACO 2019 February Contest, Platinum: Mowing Mischief
23596 USACO 2019 February Contest, Platinum: Moorio Kart
23595 USACO 2019 February Contest, Platinum: Cow Dating
23594 USACO 2019 January Contest, Bronze: Guess the Animal
23593 USACO 2019 January Contest, Bronze: Sleepy Cow Sorting
23592 USACO 2019 January Contest, Bronze: Shell Game
23591 USACO 2019 January Contest, Silver: Mountain View
23590 USACO 2019 January Contest, Silver: Icy Perimeter
23589 USACO 2019 January Contest, Silver: Grass Planting
23588 USACO 2019 January Contest, Gold: Shortcut
23587 USACO 2019 January Contest, Gold: Sleepy Cow Sorting
23586 USACO 2019 January Contest, Gold: Cow Poetry
23585 USACO 2019 January Contest, Platinum: Train Tracking 2
23584 USACO 2019 January Contest, Platinum: Exercise Route
23583 USACO 2019 January Contest, Platinum: Redistricting
23582 USACO 2019 December Contest, Bronze: Livestock Lineup
23581 USACO 2019 December Contest, Bronze: Where Am I?
23580 USACO 2019 December Contest, Bronze: Cow Gymnastics
23579 USACO 2019 December Contest, Silver: Milk Visits
23578 USACO 2019 December Contest, Silver: Meetings
23577 USACO 2019 December Contest, Silver: MooBuzz
23576 USACO 2019 December Contest, Gold: Moortal Cowmbat
23575 USACO 2019 December Contest, Gold: Milk Visits
23574 USACO 2019 December Contest, Gold: Milk Pumping
23573 USACO 2019 December Contest, Platinum: Tree Depth
23572 USACO 2019 December Contest, Platinum: Bessie's Snow Cow
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