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USACO Silver 历年题目（由易到难，同难度由近到远）
🟡 普及
lg11841 *【思维+类gcd】ab变成cd的最少步数[USACO25FEB] Transforming Pairs S
lg11452 [USACO24DEC] Cake Game S
lg10135 [USACO24JAN] Potion Farming S
lg9978 [USACO23DEC] Cycle Correspondence S
lg9125 [USACO23FEB] Cow-libi S
lg9014 [USACO23JAN] Following Directions S
lg9015 [USACO23JAN] Moo Route S
lg8094 [USACO22JAN] Cow Frisbee S
lg7992 [USACO21DEC] Convoluted Intervals S
lg7556 [USACO21OPEN] Do You Know Your ABCs? S
lg7557 [USACO21OPEN] Acowdemia S
lg7412 [USACO21FEB] Year of the Cow S
lg7300 [USACO21JAN] No Time to Paint S
lg7148 [USACO20DEC] Cowntagion S
lg6281 [USACO20OPEN] Social Distancing S
🟢普及+/提高−
lg15573 [USACO26FEB] Clash! S
lg15257 [USACO26JAN2] Cow-libi 2 S
lg15258 [USACO26JAN2] Declining Invitations S
lg15259 [USACO26JAN2] Farmer John Loves Rotations S
lg14977 [USACO26JAN1] Lineup Queries S
lg14979 [USACO26JAN1] Sliding Window Summation S
lg12026 *【贪心】配对[USACO25OPEN] Compatible Pairs S
lg12027 [USACO25OPEN] Ski Slope S
lg11839 [USACO25FEB] The Best Lineup S
lg11840 *【树上模拟】确定学生编号[USACO25FEB] Vocabulary Quiz S
lg11670 [USACO25JAN] Cow Checkups S
lg11671 [USACO25JAN] Farmer John's Favorite Operation S
lg11453 *【差分约束】[USACO24DEC] Deforestation S
lg10277 [USACO24OPEN] Bessie's Interview S
lg10190 [USACO24FEB] Target Practice II S
lg10192 [USACO24FEB] Moorbles S
lg9977 [USACO23DEC] Bovine Acrobatics S
lg9979 [USACO23DEC] Target Practice S
lg9186 [USACO23OPEN] Milk Sum S
lg9187 [USACO23OPEN] Field Day S
lg9188 [USACO23OPEN] Pareidolia S
lg9124 [USACO23FEB] Bakery S
lg9126 [USACO23FEB] Moo Route II S
lg8900 [USACO22DEC] Barn Tree S
lg8901 [USACO22DEC] Circular Barn S
lg8902 [USACO22DEC] Range Reconstruction S(spj)
lg8269 [USACO22OPEN] Visits S
lg8271 [USACO22OPEN] COW Operations S
lg8186 [USACO22FEB] Redistributing Gifts S
lg8188 [USACO22FEB] Email Filing S
lg8093 [USACO22JAN] Searching for Soulmates S
lg7991 [USACO21DEC] Connecting Two Barns S
lg7555 [USACO21OPEN] Maze Tac Toe S
lg7410 [USACO21FEB] Just Green Enough S
lg7411 [USACO21FEB] Comfortable Cows S
lg7299 [USACO21JAN] Dance Mooves S
lg7301 [USACO21JAN] Spaced Out S
lg7149 [USACO20DEC] Rectangular Pasture S
lg7150 [USACO20DEC] Stuck in a Rut S
🩵 提高
lg15574 [USACO26FEB] Milk Buckets S
lg15575 [USACO26FEB] Point Elimination S
lg14978 [USACO26JAN1] Mooclear Reactor S
lg12025 [USACO25OPEN] Sequence Construction S
lg11672 [USACO25JAN] Table Recovery S
lg11454 [USACO24DEC] 2D Conveyer Belt S
lg10278 [USACO24OPEN] Painting Fence Posts S
lg10279 [USACO24OPEN] The 'Winning' Gene S
lg10191 [USACO24FEB] Test Tubes S(spj)
lg10134 [USACO24JAN] Cowmpetency S
lg10136 [USACO24JAN] Cowlendar S
lg9013 [USACO23JAN] Find and Replace S
lg8270 [USACO22OPEN] Subset Equality S
lg8187 [USACO22FEB] Robot Instructions S
lg8095 [USACO22JAN] Cereal 2 S
lg7990 [USACO21DEC] Closest Cow Wins S
章节 1. USACO Silver 历年题目
开放
| 题目 | 尝试 | AC | 难度 |
|---|---|---|---|
| lg11841 *【思维+类gcd】ab变成cd的最少步数[USACO25FEB] Transforming Pairs S | 158 | 34 | 7 |
| lg11452 [USACO24DEC] Cake Game S | 78 | 22 | 6 |
| lg10135 [USACO24JAN] Potion Farming S | 64 | 19 | 6 |
| lg9978 [USACO23DEC] Cycle Correspondence S | 63 | 21 | 6 |
| lg9125 [USACO23FEB] Cow-libi S | 33 | 6 | 8 |
| lg9014 [USACO23JAN] Following Directions S | 8 | 4 | 10 |
| lg9015 [USACO23JAN] Moo Route S | 11 | 5 | 9 |
| lg8094 [USACO22JAN] Cow Frisbee S | 13 | 6 | 8 |
| lg7992 [USACO21DEC] Convoluted Intervals S | 61 | 17 | 6 |
| lg7556 [USACO21OPEN] Do You Know Your ABCs? S | 25 | 7 | 7 |
| lg7557 [USACO21OPEN] Acowdemia S | 115 | 11 | 9 |
| lg7412 [USACO21FEB] Year of the Cow S | 152 | 9 | 9 |
| lg7300 [USACO21JAN] No Time to Paint S | 94 | 10 | 9 |
| lg7148 [USACO20DEC] Cowntagion S | 92 | 13 | 8 |
| lg6281 [USACO20OPEN] Social Distancing S | 12 | 2 | 10 |
| lg15573 [USACO26FEB] Clash! S | 35 | 5 | 8 |
| lg15257 [USACO26JAN2] Cow-libi 2 S | 78 | 10 | 8 |
| lg15258 [USACO26JAN2] Declining Invitations S | 12 | 6 | 9 |
| lg15259 [USACO26JAN2] Farmer John Loves Rotations S | 24 | 6 | 8 |
| lg14977 [USACO26JAN1] Lineup Queries S | 70 | 12 | 8 |
| lg14979 [USACO26JAN1] Sliding Window Summation S | 15 | 9 | 7 |
| lg12026 *【贪心】配对[USACO25OPEN] Compatible Pairs S | 76 | 25 | 6 |
| lg12027 [USACO25OPEN] Ski Slope S | 34 | 16 | 5 |
| lg11839 [USACO25FEB] The Best Lineup S | 209 | 27 | 8 |
| lg11840 *【树上模拟】确定学生编号[USACO25FEB] Vocabulary Quiz S | 124 | 30 | 7 |
| lg11670 [USACO25JAN] Cow Checkups S | 198 | 25 | 8 |
| lg11671 [USACO25JAN] Farmer John's Favorite Operation S | 200 | 23 | 9 |
| lg11453 *【差分约束】[USACO24DEC] Deforestation S | 94 | 7 | 9 |
| lg10277 [USACO24OPEN] Bessie's Interview S | 70 | 24 | 6 |
| lg10190 [USACO24FEB] Target Practice II S | 40 | 5 | 8 |
| lg10192 [USACO24FEB] Moorbles S | 85 | 10 | 8 |
| lg9977 [USACO23DEC] Bovine Acrobatics S | 57 | 18 | 6 |
| lg9979 [USACO23DEC] Target Practice S | 100 | 11 | 9 |
| lg9186 [USACO23OPEN] Milk Sum S | 19 | 7 | 7 |
| lg9187 [USACO23OPEN] Field Day S | 16 | 7 | 8 |
| lg9188 [USACO23OPEN] Pareidolia S | 15 | 4 | 9 |
| lg9124 [USACO23FEB] Bakery S | 31 | 6 | 8 |
| lg9126 [USACO23FEB] Moo Route II S | 24 | 8 | 7 |
| lg8900 [USACO22DEC] Barn Tree S | 28 | 6 | 8 |
| lg8901 [USACO22DEC] Circular Barn S | 12 | 5 | 9 |
| lg8902 [USACO22DEC] Range Reconstruction S(spj) | 16 | 3 | 9 |
| lg8269 [USACO22OPEN] Visits S | 12 | 4 | 9 |
| lg8271 [USACO22OPEN] COW Operations S | 4 | 2 | 10 |
| lg8186 [USACO22FEB] Redistributing Gifts S | 36 | 13 | 6 |
| lg8188 [USACO22FEB] Email Filing S | 207 | 4 | 10 |
| lg8093 [USACO22JAN] Searching for Soulmates S | 12 | 6 | 9 |
| lg7991 [USACO21DEC] Connecting Two Barns S | 15 | 3 | 9 |
| lg7555 [USACO21OPEN] Maze Tac Toe S | 25 | 9 | 7 |
| lg7410 [USACO21FEB] Just Green Enough S | 101 | 8 | 9 |
| lg7411 [USACO21FEB] Comfortable Cows S | 90 | 7 | 9 |
| lg7299 [USACO21JAN] Dance Mooves S | 96 | 10 | 9 |
| lg7301 [USACO21JAN] Spaced Out S | 20 | 7 | 8 |
| lg7149 [USACO20DEC] Rectangular Pasture S | 56 | 8 | 8 |
| lg7150 [USACO20DEC] Stuck in a Rut S | 28 | 11 | 6 |
| lg15574 [USACO26FEB] Milk Buckets S | 25 | 5 | 8 |
| lg15575 [USACO26FEB] Point Elimination S | 29 | 5 | 8 |
| lg14978 [USACO26JAN1] Mooclear Reactor S | 37 | 8 | 7 |
| lg12025 [USACO25OPEN] Sequence Construction S | 51 | 16 | 6 |
| lg11672 [USACO25JAN] Table Recovery S | 99 | 18 | 8 |
| lg11454 [USACO24DEC] 2D Conveyer Belt S | 28 | 7 | 7 |
| lg10278 [USACO24OPEN] Painting Fence Posts S | 44 | 8 | 8 |
| lg10279 [USACO24OPEN] The 'Winning' Gene S | 53 | 12 | 7 |
| lg10191 [USACO24FEB] Test Tubes S(spj) | 42 | 3 | 9 |
| lg10134 [USACO24JAN] Cowmpetency S | 26 | 6 | 8 |
| lg10136 [USACO24JAN] Cowlendar S | 47 | 13 | 7 |
| lg9013 [USACO23JAN] Find and Replace S | 36 | 6 | 8 |
| lg8270 [USACO22OPEN] Subset Equality S | 7 | 3 | 10 |
| lg8187 [USACO22FEB] Robot Instructions S | 10 | 2 | 10 |
| lg8095 [USACO22JAN] Cereal 2 S | 7 | 2 | 10 |
| lg7990 [USACO21DEC] Closest Cow Wins S | 3 | 1 | 10 |