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USACO 历年题目（按难度分类，同难度按时间由近到远）
🔴 入门
lg9940 [USACO21JAN] Uddered but not Herd B
lg9946 [USACO20JAN] Word Processor B
lg9950 [USACO20FEB] Mad Scientist B
lg9955 [USACO20DEC] Do You Know Your ABCs? B
lg5831 [USACO19DEC] Cow Gymnastics B
🟠 普及−
lg15254 [USACO26JAN2] It's Mooin' Time IV B
lg11836 [USACO25FEB] Reflection B
lg11837 [USACO25FEB] Making Mexes B
lg12022 [USACO25OPEN] Hoof Paper Scissors Minus One B
lg12023 [USACO25OPEN] More Cow Photos B
lg10131 [USACO24JAN] Majority Opinion B
lg10132 [USACO24JAN] Cannonball B
lg10187 [USACO24FEB] Palindrome Game B
lg10189 [USACO24FEB] Maximizing Productivity B
lg11450 [USACO24DEC] Farmer John's Cheese Block B
lg9010 [USACO23JAN] Leaders B
lg9011 [USACO23JAN] Air Cownditioning II B
lg9012 [USACO23JAN] Moo Operations B
lg9121 [USACO23FEB] Hungry Cow B
lg9122 [USACO23FEB] Stamp Grid B
lg9123 [USACO23FEB] Watching Mooloo B
lg8091 [USACO22JAN] Non-Transitive Dice B
lg8184 [USACO22FEB] Photoshoot 2 B
lg8185 [USACO22FEB] Blocks B
lg8267 [USACO22OPEN] Counting Liars B
lg8897 [USACO22DEC] Cow College B
lg7993 [USACO21DEC] Lonely Photo B
lg9937 [USACO21OPEN] Acowdemia I B
lg9938 [USACO21OPEN] Acowdemia II B
lg9941 [USACO21JAN] Even More Odd Photos B
lg9942 [USACO21JAN] Just Stalling B
lg9943 [USACO21FEB] Year of the Cow B
lg9944 [USACO21FEB] Comfortable Cows B
lg9945 [USACO21FEB] Clockwise Fence B
lg9947 [USACO20JAN] Photoshoot B
lg9949 [USACO20FEB] Triangles B
lg9953 [USACO20OPEN] Social Distancing II B
lg9956 [USACO20DEC] Daisy Chains B
lg1693 [USACO19FEB] Sleepy Cow Herding B
lg1695 [USACO19FEB] Measuring Traffic B
lg1699 [USACO19OPEN] Bucket Brigade B
lg1700 [USACO19OPEN] Milk Factory B
lg5832 [USACO19DEC] Where Am I? B
lg5833 [USACO19DEC] Livestock Lineup B
lg5834 [USACO19DEC] MooBuzz B
lg9958 [USACO19JAN] Shell Game B
lg9959 [USACO19JAN] Sleepy Cow Sorting B
lg9960 [USACO19JAN] Guess the Animal B
🟡 普及
lg14974 [USACO26JAN1] Chip Exchange B
lg14976 [USACO26JAN1] Photoshoot B
lg15256 [USACO26JAN2] Purchasing Milk B
lg15570 [USACO26FEB] Make All Distinct B
lg15571 [USACO26FEB] Strange Function B
lg15572 [USACO26FEB] Swap to Win B
lg11668 [USACO25JAN] It's Mooin' Time II B
lg11669 [USACO25JAN] Cow Checkups B
lg11841 [USACO25FEB] Transforming Pairs S
lg10133 [USACO24JAN] Balancing Bacteria B
lg10135 [USACO24JAN] Potion Farming S
lg10275 [USACO24OPEN] Walking Along a Fence B
lg10276 [USACO24OPEN] Farmer John's Favorite Permutation B
lg11449 [USACO24DEC] Roundabount Rounding B
lg11451 [USACO24DEC] It's Mooin' Time B
lg11452 [USACO24DEC] Cake Game S
lg9014 [USACO23JAN] Following Directions S
lg9015 [USACO23JAN] Moo Route S
lg9125 [USACO23FEB] Cow-libi S
lg9974 [USACO23DEC] Candy Cane Feast B
lg9975 [USACO23DEC] Cowntact Tracing 2 B
lg9976 [USACO23DEC] Farmer John Actually Farms B
lg9978 [USACO23DEC] Cycle Correspondence S
lg8092 [USACO22JAN] Drought B
lg8094 [USACO22JAN] Cow Frisbee S
lg8183 [USACO22FEB] Sleeping in Class B
lg8268 [USACO22OPEN] Alchemy B
lg8898 [USACO22DEC] Feeding the Cows B
lg8899 [USACO22DEC] Reverse Engineering B
lg7300 [USACO21JAN] No Time to Paint S
lg7412 [USACO21FEB] Year of the Cow S
lg7556 [USACO21OPEN] Do You Know Your ABCs? S
lg7557 [USACO21OPEN] Acowdemia S
lg7992 [USACO21DEC] Convoluted Intervals S
lg7994 [USACO21DEC] Air Cownditioning B
lg7995 [USACO21DEC] Walking Home B
lg9939 [USACO21OPEN] Acowdemia III B
lg6002 [USACO20JAN] Berry Picking S
lg6145 [USACO20FEB] Timeline G
lg6281 [USACO20OPEN] Social Distancing S
lg6282 [USACO20OPEN] Cereal S
lg7148 [USACO20DEC] Cowntagion S
lg9948 [USACO20JAN] Race B
lg9951 [USACO20FEB] Swapity Swap B
lg9952 [USACO20OPEN] Social Distancing I B
lg9954 [USACO20OPEN] Cowntact Tracing B
lg9957 [USACO20DEC] Stuck in a Rut B
lg1694 [USACO19FEB] The Great Revegetation B
lg1701 [USACO19OPEN] Cow Evolution B
lg5197 [USACO19JAN] Grass Planting S
lg5198 [USACO19JAN] Icy Perimeter S
lg5199 [USACO19JAN] Mountain View S
lg5429 [USACO19OPEN] Fence Planning S
lg5541 [USACO19FEB] Sleepy Cow Herding S
lg5542 [USACO19FEB] Painting The Barn S
lg5836 [USACO19DEC] Milk Visits S
🟢 普及+/提高−
lg14975 [USACO26JAN1] COW Splits B
lg14977 [USACO26JAN1] Lineup Queries S
lg14979 [USACO26JAN1] Sliding Window Summation S
lg15255 [USACO26JAN2] Moo Hunt B
lg15257 [USACO26JAN2] Cow-libi 2 S
lg15258 [USACO26JAN2] Declining Invitations S
lg15259 [USACO26JAN2] Farmer John Loves Rotations S
lg15573 [USACO26FEB] Clash! S
lg15577 [USACO26FEB] Picking Flowers G
lg11667 [USACO25JAN] Astral Superposition B
lg11670 [USACO25JAN] Cow Checkups S
lg11671 [USACO25JAN] Farmer John's Favorite Operation S
lg11674 [USACO25JAN] Reachable Pairs G
lg11838 [USACO25FEB] Printing Sequences B
lg11839 [USACO25FEB] The Best Lineup S
lg11840 [USACO25FEB] Vocabulary Quiz S
lg12024 [USACO25OPEN] It's Mooin' Time III B
lg12026 [USACO25OPEN] Compatible Pairs S
lg12027 [USACO25OPEN] Ski Slope S
lg12028 [USACO25OPEN] Moo Decomposition G
lg10139 [USACO24JAN] Nap Sort G
lg10188 [USACO24FEB] Milk Exchange B
lg10190 [USACO24FEB] Target Practice II S
lg10192 [USACO24FEB] Moorbles S
lg10195 [USACO24FEB] Quantum Moochanics G
lg10274 [USACO24OPEN] Logical Moos B
lg10277 [USACO24OPEN] Bessie's Interview S
lg11453 [USACO24DEC] Deforestation S
lg9016 [USACO23JAN] Find and Replace G
lg9017 [USACO23JAN] Lights Off G
lg9018 [USACO23JAN] Moo Route G
lg9124 [USACO23FEB] Bakery S
lg9126 [USACO23FEB] Moo Route II S
lg9127 [USACO23FEB] Equal Sum Subarrays G
lg9183 [USACO23OPEN] FEB B
lg9184 [USACO23OPEN] Moo Language B
lg9185 [USACO23OPEN] Rotate and Shift B
lg9186 [USACO23OPEN] Milk Sum S
lg9187 [USACO23OPEN] Field Day S
lg9188 [USACO23OPEN] Pareidolia S
lg9977 [USACO23DEC] Bovine Acrobatics S
lg9979 [USACO23DEC] Target Practice S
lg9980 [USACO23DEC] Flight Routes G
lg9982 [USACO23DEC] Haybale Distribution G
lg8093 [USACO22JAN] Searching for Soulmates S
lg8097 [USACO22JAN] Farm Updates G
lg8186 [USACO22FEB] Redistributing Gifts S
lg8188 [USACO22FEB] Email Filing S
lg8191 [USACO22FEB] Moo Network G
lg8266 [USACO22OPEN] Photoshoot B
lg8269 [USACO22OPEN] Visits S
lg8271 [USACO22OPEN] COW Operations S
lg8900 [USACO22DEC] Barn Tree S
lg8901 [USACO22DEC] Circular Barn S
lg8902 [USACO22DEC] Range Reconstruction S
lg7299 [USACO21JAN] Dance Mooves S
lg7301 [USACO21JAN] Spaced Out S
lg7410 [USACO21FEB] Just Green Enough S
lg7411 [USACO21FEB] Comfortable Cows S
lg7555 [USACO21OPEN] Maze Tac Toe S
lg7989 [USACO21DEC] Bracelet Crossings G
lg7991 [USACO21DEC] Connecting Two Barns S
lg6004 [USACO20JAN] Wormhole Sort S
lg6005 [USACO20JAN] Time is Mooney G
lg6146 [USACO20FEB] Help Yourself G
lg6148 [USACO20FEB] Swapity Swapity Swap S
lg6149 [USACO20FEB] Triangles S
lg6150 [USACO20FEB] Clock Tree S
lg6278 [USACO20OPEN] Haircut G
lg7149 [USACO20DEC] Rectangular Pasture S
lg7150 [USACO20DEC] Stuck in a Rut S
lg5196 [USACO19JAN] Cow Poetry G
lg5200 [USACO19JAN] Sleepy Cow Sorting G
lg5201 [USACO19JAN] Shortcut G
lg5202 [USACO19JAN] Redistricting P
lg5424 [USACO19OPEN] Snakes G
lg5425 [USACO19OPEN] I Would Walk 500 Miles G
lg5427 [USACO19OPEN] Left Out S
lg5543 [USACO19FEB] The Great Revegetation S
lg5837 [USACO19DEC] Milk Pumping G
lg6099 [USACO19FEB] Dishwashing G
章节 1. 入门
开放
| 题目 | 尝试 | AC | 难度 |
|---|---|---|---|
| lg9940 [USACO21JAN] Uddered but not Herd B | 21 | 13 | 5 |
| lg9946 [USACO20JAN] Word Processor B | 18 | 15 | 5 |
| lg9950 [USACO20FEB] Mad Scientist B | 26 | 14 | 5 |
| lg9955 [USACO20DEC] Do You Know Your ABCs? B | 21 | 16 | 4 |
| lg5831 [USACO19DEC] Cow Gymnastics B | 66 | 24 | 5 |
章节 2. 普及−
开放
| 题目 | 尝试 | AC | 难度 |
|---|---|---|---|
| lg15254 [USACO26JAN2] It's Mooin' Time IV B | 28 | 5 | 8 |
| lg11836 *【模拟】正方形中心对称判断[USACO25FEB] Reflection B | 109 | 21 | 7 |
| lg11837 *【思维】制造最小排除值[USACO25FEB] Making Mexes B | 87 | 21 | 7 |
| lg12022 [USACO25OPEN] Hoof Paper Scissors Minus One B | 19 | 7 | 7 |
| lg12023 [USACO25OPEN] More Cow Photos B | 12 | 6 | 9 |
| lg10131 *【思维】众数操作[USACO24JAN] Majority Opinion B | 65 | 25 | 5 |
| lg10132 *【模拟】在数轴上弹跳[USACO24JAN] Cannonball B | 170 | 25 | 8 |
| lg10187 【博弈sg】回文数取石子[USACO24FEB] Palindrome Game B | 75 | 29 | 5 |
| lg10189 【二分】访问最多农场[USACO24FEB] Maximizing Productivity B | 143 | 32 | 7 |
| lg11450 *【模拟统计】立方体空格统计[USACO24DEC] Farmer John's Cheese Block B | 96 | 26 | 6 |
| lg9010 [USACO23JAN] Leaders B | 70 | 14 | 7 |
| lg9011 [USACO23JAN] Air Cownditioning II B | 19 | 10 | 6 |
| lg9012 [USACO23JAN] Moo Operations B | 35 | 18 | 4 |
| lg9121 [USACO23FEB] Hungry Cow B | 63 | 16 | 7 |
| lg9122 [USACO23FEB] Stamp Grid B | 28 | 12 | 6 |
| lg9123 [USACO23FEB] Watching Mooloo B | 59 | 27 | 4 |
| lg8091 [USACO22JAN] Non-Transitive Dice B | 28 | 14 | 5 |
| lg8184 [USACO22FEB] Photoshoot 2 B | 71 | 14 | 7 |
| lg8185 [USACO22FEB] Blocks B | 50 | 13 | 7 |
| lg8267 [USACO22OPEN] Counting Liars B | 47 | 15 | 6 |
| lg8897 [USACO22DEC] Cow College B | 43 | 20 | 4 |
| lg7993 [USACO21DEC] Lonely Photo B | 69 | 12 | 8 |
| lg9937 [USACO21OPEN] Acowdemia I B | 20 | 4 | 9 |
| lg9938 [USACO21OPEN] Acowdemia II B | 43 | 14 | 6 |
| lg9941 [USACO21JAN] Even More Odd Photos B | 3 | 3 | 10 |
| lg9942 [USACO21JAN] Just Stalling B | 53 | 19 | 5 |
| lg9943 [USACO21FEB] Year of the Cow B | 4 | 4 | 10 |
| lg9944 [USACO21FEB] Comfortable Cows B | 5 | 4 | 10 |
| lg9945 [USACO21FEB] Clockwise Fence B | 42 | 17 | 5 |
| lg9947 [USACO20JAN] Photoshoot B | 65 | 18 | 6 |
| lg9949 [USACO20FEB] Triangles B | 12 | 2 | 10 |
| lg9953 [USACO20OPEN] Social Distancing II B | 3 | 2 | 10 |
| lg9956 [USACO20DEC] Daisy Chains B | 3 | 3 | 10 |
| lg1693 [USACO19FEB] Sleepy Cow Herding B | 64 | 14 | 7 |
| lg1695 [USACO19FEB] Measuring Traffic B | 28 | 6 | 8 |
| lg1699 [USACO19OPEN] Bucket Brigade B | 71 | 10 | 8 |
| lg1700 [USACO19OPEN] Milk Factory B | 33 | 6 | 8 |
| lg5832 [USACO19DEC] Where Am I? B | 88 | 21 | 7 |
| lg5833 [USACO19DEC] Livestock Lineup B | 10 | 3 | 10 |
| lg5834 [USACO19DEC] MooBuzz S | 5 | 2 | 10 |
| lg9958 [USACO19JAN] Shell Game B | 69 | 24 | 6 |
| lg9959 [USACO19JAN] Sleepy Cow Sorting B | 154 | 22 | 8 |
| lg9960 [USACO19JAN] Guess the Animal B【思维】 | 175 | 10 | 9 |
章节 3. 普及
开放
| 题目 | 尝试 | AC | 难度 |
|---|---|---|---|
| lg14974 [USACO26JAN1] Chip Exchange B | 31 | 12 | 6 |
| lg14976 [USACO26JAN1] Photoshoot B | 27 | 12 | 6 |
| lg15256 [USACO26JAN2] Purchasing Milk B | 29 | 8 | 7 |
| lg15570 [USACO26FEB] Make All Distinct B | 22 | 9 | 7 |
| lg15571 [USACO26FEB] Strange Function B | 16 | 8 | 8 |
| lg15572 [USACO26FEB] Swap to Win B | 16 | 8 | 8 |
| lg11668 *【思维】哞哞叫Ⅱ [USACO25JAN] It's Mooin' Time II B | 58 | 15 | 7 |
| lg11669 *【模拟】序列翻转匹配[USACO25JAN] Cow Checkups B | 23 | 9 | 7 |
| lg11841 *【思维+类gcd】ab变成cd的最少步数[USACO25FEB] Transforming Pairs S | 158 | 34 | 7 |
| lg10133 [USACO24JAN] Balancing Bacteria B【思维】 | 68 | 11 | 8 |
| lg10135 [USACO24JAN] Potion Farming S | 65 | 20 | 6 |
| lg10275 *【模拟】多边形周长上两点距离[USACO24OPEN] Walking Along a Fence B | 62 | 13 | 7 |
| lg10276 *【思维细节】还原序列[USACO24OPEN] Farmer John's Favorite Permutation B | 38 | 14 | 6 |
| lg11449 *【模拟】链式舍入[USACO24DEC] Roundabount Rounding B | 139 | 25 | 8 |
| lg11451 *【模拟】哞哞叫[USACO24DEC] It's Mooin' Time B | 22 | 9 | 7 |
| lg11452 [USACO24DEC] Cake Game S | 78 | 22 | 6 |
| lg9014 [USACO23JAN] Following Directions S | 9 | 5 | 9 |
| lg9015 [USACO23JAN] Moo Route S | 16 | 7 | 8 |
| lg9125 [USACO23FEB] Cow-libi S | 34 | 7 | 8 |
| lg9974 [USACO23DEC] Candy Cane Feast B*【模拟】 | 43 | 12 | 7 |
| lg9975 [USACO23DEC] Cowntact Tracing 2 B | 42 | 8 | 8 |
| lg9976 [USACO23DEC] Farmer John Actually Farms B | 25 | 6 | 8 |
| lg9978 [USACO23DEC] Cycle Correspondence S | 63 | 21 | 6 |
| lg8092 [USACO22JAN] Drought B | 8 | 6 | 9 |
| lg8094 [USACO22JAN] Cow Frisbee S | 14 | 7 | 8 |
| lg8183 [USACO22FEB] Sleeping in Class B | 11 | 5 | 9 |
| lg8268 [USACO22OPEN] Alchemy B | 4 | 4 | 10 |
| lg8898 [USACO22DEC] Feeding the Cows B | 8 | 5 | 10 |
| lg8899 [USACO22DEC] Reverse Engineering B | 13 | 5 | 9 |
| lg7300 [USACO21JAN] No Time to Paint S | 95 | 11 | 8 |
| lg7412 [USACO21FEB] Year of the Cow S | 153 | 10 | 9 |
| lg7556 [USACO21OPEN] Do You Know Your ABCs? S | 25 | 7 | 7 |
| lg7557 [USACO21OPEN] Acowdemia S | 116 | 12 | 9 |
| lg7992 [USACO21DEC] Convoluted Intervals S | 61 | 17 | 6 |
| lg7994 [USACO21DEC] Air Cownditioning B | 10 | 5 | 9 |
| lg7995 [USACO21DEC] Walking Home B | 10 | 5 | 9 |
| lg9939 [USACO21OPEN] Acowdemia III B | 29 | 9 | 7 |
| lg6002 [USACO20JAN] Berry Picking S | 1 | 1 | 10 |
| lg6145 【差分约束】[USACO20FEB] Timeline G | 173 | 21 | 8 |
| lg6281 [USACO20OPEN] Social Distancing S | 13 | 3 | 9 |
| lg6282 [USACO20OPEN] Cereal S | 1 | 1 | 10 |
| lg7148 [USACO20DEC] Cowntagion S | 93 | 14 | 8 |
| lg9948 [USACO20JAN] Race B | 24 | 10 | 6 |
| lg9951 [USACO20FEB] Swapity Swap B | 45 | 15 | 6 |
| lg9952 [USACO20OPEN] Social Distancing I B | 2 | 2 | 10 |
| lg9954 [USACO20OPEN] Cowntact Tracing B | 14 | 6 | 8 |
| lg9957 [USACO20DEC] Stuck in a Rut B | 2 | 2 | 10 |
| lg1694 [USACO19FEB] The Great Revegetation B | 14 | 3 | 9 |
| lg1701 [USACO19OPEN] Cow Evolution B | 50 | 7 | 8 |
| lg5197 [USACO19JAN] Grass Planting S | 2 | 2 | 10 |
| lg5198 [USACO19JAN] Icy Perimeter S | 2 | 2 | 10 |
| lg5199 [USACO19JAN] Mountain View S | 2 | 2 | 10 |
| lg5429 [USACO19OPEN] Fence Planning S | 1 | 1 | 10 |
| lg5541 [USACO19FEB] Sleepy Cow Herding S | 1 | 1 | 10 |
| lg5542 [USACO19FEB] Painting The Barn S | 7 | 2 | 10 |
| lg5836 [USACO19DEC] Milk Visits S | 5 | 2 | 10 |
章节 4. 普及+/提高−
开放
| 题目 | 尝试 | AC | 难度 |
|---|---|---|---|
| lg14975 [USACO26JAN1] COW Splits B | 3 | 1 | 10 |
| lg14977 [USACO26JAN1] Lineup Queries S | 70 | 12 | 8 |
| lg14979 [USACO26JAN1] Sliding Window Summation S | 15 | 9 | 7 |
| lg15255 [USACO26JAN2] Moo Hunt B | 2 | 1 | 10 |
| 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 |
| lg15573 [USACO26FEB] Clash! S | 35 | 5 | 8 |
| lg15577 [USACO26FEB] Picking Flowers G | 67 | 8 | 8 |
| lg11667 *【模拟】图形重叠分析[USACO25JAN] Astral Superposition B | 67 | 10 | 8 |
| lg11670 [USACO25JAN] Cow Checkups S | 198 | 25 | 8 |
| lg11671 [USACO25JAN] Farmer John's Favorite Operation S | 200 | 23 | 9 |
| lg11674 [USACO25JAN] Reachable Pairs G | 93 | 11 | 8 |
| lg11838 *【动态规划：区间中间推】打印语句最少[USACO25FEB] Printing Sequences B | 13 | 5 | 9 |
| lg11839 [USACO25FEB] The Best Lineup S | 210 | 27 | 8 |
| lg11840 *【树上模拟】确定学生编号[USACO25FEB] Vocabulary Quiz S | 124 | 30 | 7 |
| lg12024 [USACO25OPEN] It's Mooin' Time III B | 3 | 1 | 10 |
| lg12026 *【贪心】配对[USACO25OPEN] Compatible Pairs S | 76 | 25 | 6 |
| lg12027 [USACO25OPEN] Ski Slope S | 34 | 16 | 5 |
| lg12028 *【组合数：综合计算】M OO…O的方案数[USACO25OPEN] Moo Decomposition G | 39 | 20 | 4 |
| lg10139 [USACO24JAN] Nap Sort G | 36 | 7 | 8 |
| lg10188 【思维细节】交换牛奶[USACO24FEB] Milk Exchange B | 83 | 15 | 8 |
| lg10190 [USACO24FEB] Target Practice II S | 41 | 6 | 8 |
| lg10192 [USACO24FEB] Moorbles S | 86 | 11 | 8 |
| lg10195 [USACO24FEB] Quantum Moochanics G | 15 | 4 | 9 |
| lg10274 *【思维细节】布尔语句替换[USACO24OPEN] Logical Moos B | 42 | 9 | 7 |
| lg10277 [USACO24OPEN] Bessie's Interview S | 70 | 24 | 6 |
| lg11453 *【差分约束】[USACO24DEC] Deforestation S | 94 | 7 | 9 |
| 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 |
| lg9124 [USACO23FEB] Bakery S | 32 | 7 | 8 |
| lg9126 [USACO23FEB] Moo Route II S | 26 | 9 | 7 |
| lg9127 [USACO23FEB] Equal Sum Subarrays G | 19 | 9 | 7 |
| lg9183 [USACO23OPEN] FEB B | 12 | 6 | 9 |
| lg9184 [USACO23OPEN] Moo Language B | 26 | 3 | 9 |
| lg9185 [USACO23OPEN] Rotate and Shift B | 10 | 4 | 9 |
| lg9186 [USACO23OPEN] Milk Sum S | 20 | 8 | 7 |
| lg9187 [USACO23OPEN] Field Day S | 17 | 8 | 7 |
| lg9188 [USACO23OPEN] Pareidolia S | 18 | 5 | 8 |
| lg9977 [USACO23DEC] Bovine Acrobatics S | 58 | 19 | 6 |
| lg9979 [USACO23DEC] Target Practice S | 100 | 11 | 9 |
| lg9980 [USACO23DEC] Flight Routes G | 17 | 7 | 8 |
| lg9982 [USACO23DEC] Haybale Distribution G | 27 | 5 | 8 |
| lg8093 [USACO22JAN] Searching for Soulmates S | 13 | 7 | 8 |
| lg8097 [USACO22JAN] Farm Updates G | 17 | 6 | 8 |
| lg8186 [USACO22FEB] Redistributing Gifts S | 36 | 13 | 6 |
| lg8188 [USACO22FEB] Email Filing S | 208 | 5 | 10 |
| lg8191 D136 【最小生成树】[USACO22FEB] Moo Network G | 35 | 4 | 9 |
| lg8266 [USACO22OPEN] Photoshoot B | 11 | 5 | 9 |
| lg8269 [USACO22OPEN] Visits S | 13 | 5 | 9 |
| lg8271 [USACO22OPEN] COW Operations S | 5 | 3 | 10 |
| lg8900 [USACO22DEC] Barn Tree S | 29 | 7 | 7 |
| lg8901 [USACO22DEC] Circular Barn S | 13 | 6 | 8 |
| lg8902 [USACO22DEC] Range Reconstruction S | 17 | 4 | 9 |
| lg7299 [USACO21JAN] Dance Mooves S | 97 | 11 | 9 |
| lg7301 [USACO21JAN] Spaced Out S | 20 | 7 | 8 |
| lg7410 [USACO21FEB] Just Green Enough S | 101 | 8 | 9 |
| lg7411 [USACO21FEB] Comfortable Cows S | 90 | 7 | 9 |
| lg7555 [USACO21OPEN] Maze Tac Toe S | 25 | 9 | 7 |
| lg7989 [USACO21DEC] Bracelet Crossings G | 6 | 4 | 10 |
| lg7991 [USACO21DEC] Connecting Two Barns S | 16 | 4 | 9 |
| lg6004 [USACO20JAN] Wormhole Sort S | 1 | 1 | 10 |
| lg6005 [USACO20JAN] Time is Mooney G | 4 | 3 | 10 |
| lg6146 [USACO20FEB] Help Yourself G | 2 | 2 | 10 |
| lg6148 [USACO20FEB] Swapity Swapity Swap S | 2 | 2 | 10 |
| lg6149 [USACO20FEB] Triangles S | 3 | 2 | 10 |
| lg6150 [USACO20FEB] Clock Tree S | 45 | 12 | 7 |
| lg6278 [USACO20OPEN] Haircut G | 4 | 3 | 10 |
| lg7149 [USACO20DEC] Rectangular Pasture S | 57 | 9 | 8 |
| lg7150 [USACO20DEC] Stuck in a Rut S | 29 | 12 | 6 |
| lg5196 [USACO19JAN] Cow Poetry G | 1 | 1 | 10 |
| lg5200 [USACO19JAN] Sleepy Cow Sorting G | 1 | 1 | 10 |
| lg5201 [USACO19JAN] Shortcut G | 1 | 1 | 10 |
| lg5202 [USACO19JAN] Redistricting P | 1 | 1 | 10 |
| lg5424 [USACO19OPEN] Snakes G | 19 | 11 | 6 |
| lg5425 D135 最小生成树 Prim 算法[USACO19OPEN] I Would Walk 500 Miles G | 74 | 12 | 8 |
| lg5427 [USACO19OPEN] Left Out S | 1 | 1 | 10 |
| lg5543 [USACO19FEB] The Great Revegetation S | 4 | 2 | 10 |
| lg5837 [USACO19DEC] Milk Pumping G | 1 | 1 | 10 |
| lg6099 [USACO19FEB] Dishwashing G | 57 | 11 | 8 |