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USACO Gold 历年题目（由易到难，同难度由近到远）
🟢 普及+/提高−
lg15577 [USACO26FEB] Picking Flowers G
lg12028 *【组合数：综合计算】M OO…O的方案数[USACO25OPEN] Moo Decomposition G
lg11674 [USACO25JAN] Reachable Pairs G
lg10195 [USACO24FEB] Quantum Moochanics G
lg10139 [USACO24JAN] Nap Sort G
lg9980 [USACO23DEC] Flight Routes G
lg9982 [USACO23DEC] Haybale Distribution G
lg9127 [USACO23FEB] Equal Sum Subarrays G
lg8191 D136 【最小生成树】[USACO22FEB] Moo Network G
lg8097 [USACO22JAN] Farm Updates G
lg7989 [USACO21DEC] Bracelet Crossings G
🩵 提高
lg14980 [USACO26JAN1] COW Traversals G
lg14981 [USACO26JAN1] Milk Buckets G
lg14982 [USACO26JAN1] Supervision G
lg15261 [USACO26JAN2] Lexicographically Smallest Path G
lg15262 [USACO26JAN2] The Chase G
lg15260 [USACO26JAN2] Balancing the Barns G
lg15576 [USACO26FEB] Good Cyclic Shifts G
lg15578 [USACO26FEB] Random Tree Generation G
lg12029 [USACO25OPEN] Election Queries G
lg12030 [USACO25OPEN] OohMoo Milk G
lg11842 *【树形DP：相邻点兼容】基环树森林最小点权和[USACO25FEB] Bessie's Function G
lg11673 [USACO25JAN] Median Heap G
lg11455 [USACO24DEC] Cowdepenence G
lg11456 [USACO24DEC] Interstellar Intervals G
lg10280 [USACO24OPEN] Cowreography G
lg10282 [USACO24OPEN] Smaller Averages G
lg10193 [USACO24FEB] Bessla Motors G
lg10194 [USACO24FEB] Milk Exchange G
lg10137 [USACO24JAN] Walking in Manhattan G
lg9981 [USACO23DEC] Minimum Longest Trip G
lg9189 [USACO23OPEN] Custodial Cleanup G
lg9190 [USACO23OPEN] Pareidolia G
lg9191 [USACO23OPEN] Tree Merging G
lg9016 [USACO23JAN] Find and Replace G
lg9017 [USACO23JAN] Lights Off G
lg9018 [USACO23JAN] Moo Route G
lg8903 [USACO22DEC] Bribing Friends G
lg8904 *【STL：set】[USACO22DEC] Mountains G
lg8905 [USACO22DEC] Strongest Friendship Group G
lg8272 [USACO22OPEN] Apple Catching G
lg8273 [USACO22OPEN] Pair Programming G
lg8274 [USACO22OPEN] Balancing a Tree G
lg8190 [USACO22FEB] Cow Camp G
lg8096 [USACO22JAN] Drought G
lg7988 [USACO21DEC] HILO G
lg7987 [USACO21DEC] Paired Up G
lg7527 [USACO21OPEN] United Cows of Farmer John G
lg7528 D143 最小生成树 Kruskal 算法 [USACO21OPEN] Portals G
lg7413 [USACO21FEB] Stone Game G
lg7415 [USACO21FEB] Count the Cows G
lg7296 [USACO21JAN] Uddered but not Herd G
lg7297 [USACO21JAN] Telephone G
lg7151 [USACO20DEC] Replication G
🔵 提高+/省选−
lg11843 [USACO25FEB] The Best Subsequence G
lg10138 [USACO24JAN] Cowmpetency G
lg9128 [USACO23FEB] Fertilizing Pastures G
lg8189 [USACO22FEB] Redistributing Gifts G
lg7414 [USACO21FEB] Modern Art 3 G
lg7298 [USACO21JAN] Dance Mooves G
lg7152 [USACO20DEC] Bovine Genetics G
🟣 省选/NOI−
lg11844 [USACO25FEB] Friendship Editing G
lg11675 [USACO25JAN] Photo Op G
lg11457 *【反悔贪心】[USACO24DEC] Job Completion G
lg10281 [USACO24OPEN] Grass Segments G
lg9129 [USACO23FEB] Piling Papers G
lg8098 [USACO22JAN] Tests for Haybales G
lg7529 [USACO21OPEN] Permutation G
lg7153 [USACO20DEC] Square Pasture G
章节 1. USACO Gold 历年题目
开放
| 题目 | 尝试 | AC | 难度 |
|---|---|---|---|
| lg15577 [USACO26FEB] Picking Flowers G | 1 | 1 | 10 |
| lg12028 *【组合数：综合计算】M OO…O的方案数[USACO25OPEN] Moo Decomposition G | 39 | 20 | 4 |
| lg11674 [USACO25JAN] Reachable Pairs G | 93 | 11 | 8 |
| lg10195 [USACO24FEB] Quantum Moochanics G | 15 | 4 | 9 |
| lg10139 [USACO24JAN] Nap Sort G | 36 | 7 | 8 |
| lg9980 [USACO23DEC] Flight Routes G | 17 | 7 | 8 |
| lg9982 [USACO23DEC] Haybale Distribution G | 27 | 5 | 8 |
| lg9127 [USACO23FEB] Equal Sum Subarrays G | 19 | 9 | 7 |
| lg8191 D136 【最小生成树】[USACO22FEB] Moo Network G | 35 | 4 | 9 |
| lg8097 [USACO22JAN] Farm Updates G | 17 | 6 | 8 |
| lg7989 [USACO21DEC] Bracelet Crossings G | 6 | 4 | 10 |
| lg14980 [USACO26JAN1] COW Traversals G | 15 | 4 | 9 |
| lg14981 [USACO26JAN1] Milk Buckets G | 15 | 5 | 8 |
| lg14982 [USACO26JAN1] Supervision G | 6 | 3 | 10 |
| lg15261 [USACO26JAN2] Lexicographically Smallest Path G | 30 | 2 | 9 |
| lg15262 [USACO26JAN2] The Chase G | 13 | 3 | 9 |
| lg15260 [USACO26JAN2] Balancing the Barns G | 40 | 4 | 9 |
| lg15576 [USACO26FEB] Good Cyclic Shifts G | 1 | 1 | 10 |
| lg15578 [USACO26FEB] Random Tree Generation G | 1 | 1 | 10 |
| lg12029 [USACO25OPEN] Election Queries G | 37 | 6 | 8 |
| lg12030 [USACO25OPEN] OohMoo Milk G | 17 | 3 | 9 |
| lg11842 *【树形DP：相邻点兼容】基环树森林最小点权和[USACO25FEB] Bessie's Function G | 279 | 30 | 9 |
| lg11673 [USACO25JAN] Median Heap G | 22 | 6 | 8 |
| lg11455 [USACO24DEC] Cowdepenence G | 13 | 4 | 9 |
| lg11456 [USACO24DEC] Interstellar Intervals G | 20 | 3 | 9 |
| lg10280 [USACO24OPEN] Cowreography G | 19 | 8 | 7 |
| lg10282 [USACO24OPEN] Smaller Averages G | 14 | 7 | 8 |
| lg10193 [USACO24FEB] Bessla Motors G | 10 | 4 | 9 |
| lg10194 [USACO24FEB] Milk Exchange G | 14 | 6 | 8 |
| lg10137 [USACO24JAN] Walking in Manhattan G | 19 | 4 | 9 |
| lg9981 [USACO23DEC] Minimum Longest Trip G | 27 | 5 | 8 |
| lg9189 [USACO23OPEN] Custodial Cleanup G | 12 | 5 | 9 |
| lg9190 [USACO23OPEN] Pareidolia G | 24 | 14 | 5 |
| lg9191 [USACO23OPEN] Tree Merging G | 3 | 1 | 10 |
| lg9016 [USACO23JAN] Find and Replace G | 19 | 9 | 7 |
| lg9017 [USACO23JAN] Lights Off G | 39 | 10 | 7 |
| lg9018 [USACO23JAN] Moo Route G | 17 | 10 | 6 |
| lg8903 [USACO22DEC] Bribing Friends G | 23 | 7 | 7 |
| lg8904 *【STL：set】[USACO22DEC] Mountains G | 52 | 13 | 7 |
| lg8905 [USACO22DEC] Strongest Friendship Group G | 15 | 6 | 8 |
| lg8272 [USACO22OPEN] Apple Catching G | 9 | 5 | 9 |
| lg8273 [USACO22OPEN] Pair Programming G | 9 | 2 | 10 |
| lg8274 [USACO22OPEN] Balancing a Tree G | 9 | 2 | 10 |
| lg8190 [USACO22FEB] Cow Camp G | 19 | 3 | 9 |
| lg8096 [USACO22JAN] Drought G | 7 | 6 | 9 |
| lg7988 [USACO21DEC] HILO G | 3 | 3 | 10 |
| lg7987 [USACO21DEC] Paired Up G | 9 | 3 | 10 |
| lg7527 [USACO21OPEN] United Cows of Farmer John G | 11 | 7 | 8 |
| lg7528 D143 最小生成树 Kruskal 算法 [USACO21OPEN] Portals G | 5 | 3 | 10 |
| lg7413 [USACO21FEB] Stone Game G | 1 | 1 | 10 |
| lg7415 [USACO21FEB] Count the Cows G | 1 | 1 | 10 |
| lg7296 [USACO21JAN] Uddered but not Herd G | 1 | 1 | 10 |
| lg7297 [USACO21JAN] Telephone G | 8 | 6 | 9 |
| lg7151 [USACO20DEC] Replication G | 1 | 1 | 10 |
| lg11843 [USACO25FEB] The Best Subsequence G | 42 | 5 | 9 |
| lg10138 [USACO24JAN] Cowmpetency G | 32 | 8 | 7 |
| lg9128 [USACO23FEB] Fertilizing Pastures G | 35 | 7 | 8 |
| lg8189 [USACO22FEB] Redistributing Gifts G | 12 | 4 | 9 |
| lg7414 [USACO21FEB] Modern Art 3 G | 1 | 1 | 10 |
| lg7298 [USACO21JAN] Dance Mooves G | 2 | 1 | 10 |
| lg7152 [USACO20DEC] Bovine Genetics G | 3 | 1 | 10 |
| lg11844 [USACO25FEB] Friendship Editing G | 15 | 8 | 7 |
| lg11675 [USACO25JAN] Photo Op G | 15 | 4 | 9 |
| lg11457 *【反悔贪心】[USACO24DEC] Job Completion G | 380 | 52 | 8 |
| lg10281 [USACO24OPEN] Grass Segments G | 20 | 7 | 8 |
| lg9129 [USACO23FEB] Piling Papers G | 15 | 7 | 8 |
| lg8098 [USACO22JAN] Tests for Haybales G | 12 | 3 | 9 |
| lg7529 [USACO21OPEN] Permutation G | 1 | 1 | 10 |
| lg7153 [USACO20DEC] Square Pasture G | 1 | 1 | 10 |