题目来源：USACO
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「训练题单」USA Computing Olympiad
章节 1. USACO Training Section
开放
| 题目 | 难度 |
|---|---|
| usaco#S00111 Your Ride Is Here | 1 |
| usaco#S00112 Greedy Gift Givers | 2 |
| usaco#S00113 Friday the Thirteenth | 2 |
| usaco#S00114 Broken Necklace | 2 |
| usaco#S00121 Milking Cows | 2 |
| usaco#S00122 Transformations | 2 |
| usaco#S00123 Name That Number | 3 |
| usaco#S00124 Palindromic Squares | 2 |
| usaco#S00125 Dual Palindromes | 2 |
| usaco#S00131 Mixing Milk | 2 |
| usaco#S00132 Barn Repair | 3 |
| usaco#S00133 Calf Flac | 2 |
| usaco#S00134 Prime Cryptarithm | 2 |
| usaco#S00141 Packing Rectangles | 4 |
| usaco#S00142 The Clocks | 4 |
| usaco#S00143 Arithmetic Progressions | 2 |
| usaco#S00144 Mother's Milk | 3 |
| usaco#S00151 Number Triangles | 2 |
| usaco#S00152 Prime Palindromes | 2 |
| usaco#S00153 Superprime Rib | 2 |
| usaco#S00154 Checker Challenge | 3 |
| usaco#S00241 The Tamworth Two | 3 |
| usaco#S00342 American Heritage | 2 |
章节 20093. USACO 2008 December
开放
章节 20111. USACO 2010 October
开放
| 题目 | 难度 |
|---|---|
| usaco#P10oct07 Lake Counting S | 2 |
章节 20117. USACO 2011 US Open
开放
| 题目 | 难度 |
|---|---|
| usaco#P11open06 Corn Maze S | 3 |