USACO practice, Bronze to Platinum
515 USACO contest problems since the 2015-16 season, in four divisions with bosses, badges and links to USACO Guide solutions.
What changed
Practice has a USACO track. It lists every problem from usaco.org’s contests since the 2015-16 season, up to the 2025-26 First, Second and Third contests: 129 in Bronze, 129 in Silver, 128 in Gold and 129 in Platinum.
Each division opens on its starred problems, oldest season first, and season filters narrow the list. A title opens the statement on usaco.org. When USACO Guide has a solution page for a problem, the row’s Details panel links to it.
Each division ends in a boss: Stuck in a Rut, Wormhole Sort, Cow Land and Cow at Large. Each division also has three mini bosses, one each from early, middle and recent seasons. Solving three quarters of a division earns its badge. You mark USACO solves yourself, and they earn XP like CSES and AtCoder problems.
Try it
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