| 2024 | 【基础】黑色星期五（friday） | 1/1 | |
| 2207 | 【基础】跳房子 | 1/1 | |
| 2231 | 【提高】谷仓的安保 | 0/0 | |
| 2314 | 【基础】愤怒的奶牛 | 0/0 | |
| 2321 | 【基础】探测池塘 | 0/0 | |
| 2322 | 【基础】相似的奶牛 | 0/0 | |
| 2323 | 【基础】数字三角形 | 1/1 | |
| 2324 | 【基础】麦香牛肉 | 0/1 | |
| 2330 | 【提高】立方体积木Cube Stacking | 0/1 | |
| 2333 | 【基础】最短网络 Agri-Net（USACO3.1） | 1/1 | |
| 2335 | 【基础】Out of Hay S[USACO05MAR] | 1/1 | |
| 2341 | 【基础】贪婪的送礼者Greedy Gift Givers(USACO1.1) | 0/0 | |
| 2342 | 【基础】回文平方数 Palindromic Squares | 0/0 | |
| 2343 | 【基础】双重回文数 Dual Palindromes | 0/0 | |
| 2344 | 【基础】混合牛奶 Mixing Milk | 1/1 | |
| 2345 | 【基础】修理牛棚 Barn Repair | 0/0 | |
| 2346 | 【提高】回文质数 Prime Palindromes | 1/1 | |
| 2347 | 【基础】特殊的质数肋骨 Superprime Rib | 1/1 | |
| 2348 | 【基础】集合 Subset Sums | 1/1 | |
| 2419 | Your Ride Is Here | 0/0 | |
| 2420 | Transformations | 0/0 | |
| 2421 | Name That Number | 0/0 | |
| 2422 | Palindromic Squares | 0/0 | |
| 2423 | Dual Palindromes | 0/0 | |
| 2424 | Mixing Milk | 0/0 | |
| 2425 | Barn Repair | 0/0 | |
| 2426 | Calf Flac | 0/0 | |
| 2427 | Prime Cryptarithm | 0/0 | |
| 2428 | Packing Rectangles | 0/0 | |
| 2429 | The Clocks | 0/0 | |
| 2430 | Arithmetic Progressions | 0/0 | |
| 2431 | Mother's Milk | 0/0 | |
| 2432 | Number Triangles | 0/0 | |
| 2433 | Prime Palindromes | 0/0 | |
| 2434 | Superprime Rib | 0/0 | |
| 2435 | Checker Challenge | 0/0 | |
| 2436 | Ordered Fractions | 0/0 | |
| 2437 | Sorting a Three-Valued Sequence | 0/0 | |
| 2438 | Healthy Holsteins | 0/0 | |
| 2439 | Hamming Codes | 0/0 | |
| 2440 | Preface Numbering | 0/0 | |
| 2441 | Subset Sums | 0/0 | |
| 2442 | Runaround Numbers | 0/0 | |
| 2443 | Party Lamps | 0/0 | |
| 2444 | Longest Prefix | 0/0 | |
| 2445 | Cow Pedigrees | 0/0 | |
| 2446 | Zero Sum | 0/0 | |
| 2447 | Money Systems | 0/0 | |
| 2448 | Controlling Companies | 0/0 | |
| 2449 | The Tamworth Two | 0/0 | |
| 2450 | Overfencing | 0/0 | |
| 2451 | Cow Tours | 0/0 | |
| 2452 | Bessie Come Home | 0/0 | |
| 2453 | Fractions to Decimals | 0/0 | |
| 2454 | Agri-Net | 0/0 | |
| 2455 | Score Inflation | 0/0 | |
| 2456 | Humble Numbers | 0/0 | |
| 2457 | Shaping Regions | 0/0 | |
| 2458 | Contact | 0/0 | |
| 2459 | Stamps | 0/0 | |
| 2460 | Factorials | 0/0 | |
| 2461 | Stringsobits | 0/0 | |
| 2462 | Spinning Wheels | 0/0 | |
| 2463 | Feed Ratios | 0/0 | |
| 2464 | Magic Squares | 0/0 | |
| 2465 | Sweet Butter | 0/0 | |
| 2466 | Riding the Fences | 0/0 | |
| 2467 | Shopping Offers | 0/0 | |
| 2468 | Camelot | 0/0 | |
| 2469 | Home on the Range | 0/0 | |
| 2470 | A Game | 0/0 | |
| 2471 | Closed Fences | 0/0 | |
| 2472 | American Heritage | 0/0 | |
| 2473 | Electric Fence | 0/0 | |
| 2474 | Raucous Rockers | 0/0 | |
| 2475 | Beef McNuggets | 0/0 | |
| 2476 | Fence Rails | 0/0 | |
| 2477 | Fence Loops | 0/0 | |
| 2478 | Cryptcowgraphy | 0/0 | |
| 2479 | Drainage Ditches | 0/0 | |
| 2480 | The Perfect Stall | 0/0 | |
| 2481 | Job Processing | 0/0 | |
| 2482 | Cowcycles | 0/0 | |
| 2483 | Buy Low, Buy Lower | 0/0 | |
| 2484 | The Primes | 0/0 | |
| 2485 | Street Race | 0/0 | |
| 2486 | Letter Game | 0/0 | |
| 2487 | Shuttle Puzzle | 0/0 | |
| 2488 | Pollutant Control | 0/0 | |
| 2489 | Frame Up | 0/0 | |
| 2490 | Fencing the Cows | 0/0 | |
| 2491 | Starry Night | 0/0 | |
| 2492 | Musical Themes | 0/0 | |
| 2493 | Snail Trails | 0/0 | |
| 2494 | Electric Fences | 0/0 | |
| 2495 | Wisconsin Squares | 0/0 | |
| 2496 | Milk Measuring | 0/0 | |
| 2497 | Window Area | 0/0 | |
| 2498 | Network of Schools | 0/0 | |
| 2499 | Big Barn | 0/0 | |
| 2500 | All Latin Squares | 0/0 | |
| 2501 | Canada Tour | 0/0 | |
| 2502 | Character Recognition | 0/0 | |
| 2503 | Betsy's Tour | 0/0 | |
| 2504 | Telecowmunication | 0/0 | |
| 2505 | Picture | 0/0 | |
| 2506 | Hidden Password | 0/0 | |
| 2507 | Towfive | 0/0 | |