ID 题目 显示标签 隐藏标签 AC / 尝试 难度
1928 P1824   [USACO05FEB] 进击的奶牛 Aggressive Cows G 1 / 1 2
1397 P1827   [USACO3.4.1] 美国血统 American Heritage 1 / 1 2
1392 P1828   [USACO3.2.6] 香甜的黄油 Sweet Butter 1 / 2 3
2021 P1884   [USACO12FEB] Overplanting S 1 / 3 4
1402 P1894   [USACO4.2.2] 完美的牛栏The Perfect Stall 1 / 3 4
2172 P2340   [USACO03FALL] Cow Exhibition G 1 / 1 3
2035 P2345   [USACO04OPEN] MooFest G 1 / 1 2
2129 P2419    [USACO08JAN] Cow Contest S 1 / 1 3
1355 P2693   [USACO1.3.4] 号码锁 Combination Lock 1 / 1 2
1413 P2701   [USACO5.3.1] 巨大的牛棚 Big Barn 1 / 2 3
1383 P2722   [USACO3.1.2] 总分 Score Inflation 1 / 1 2
1384 P2723   [USACO3.1.3] 丑数 Humble Numbers 1 / 1 4
1385 P2724   [IOI 1998 / USACO3.1.4] 联系 Contact 1 / 1 3
1386 P2725   [USACO3.1.5] 邮票 Stamps 1 / 1 3
1388 P2727   [USACO3.2.2] 01串 Stringsobits 1 / 1 5
1389 P2728   [USACO3.2.3] 纺车的轮子 Spinning Wheels 1 / 1 3
1390 P2729   [USACO3.2.4] 饲料调配 Feed Ratios 1 / 1 3
1391 P2730   [IOI 1996 / USACO3.2.5] 魔板 Magic Squares 1 / 2 4
1393 P2732   [USACO3.3.2] 商店购物 Shopping Offers 1 / 1 5
1395 P2733   [USACO3.3.4] 家的范围 Home on the Range 1 / 1 3
1396 P2734   [IOI 1996 / USACO3.3.5] 游戏 A Game 1 / 1 3
1398 P2735   [USACO3.4.2] 网 Electric Fences 1 / 2 3
1399 P2736   [USACO3.4.3] “破锣摇滚”乐队 Raucous Rockers 1 / 1 3
1400 P2737   [USACO4.1.1] 麦香牛块 Beef McNuggets 1 / 1 4
1401 P2738   [USACO4.1.2] 篱笆回路 Fence Loops 1 / 1 5
1407 P2739   [USACO4.4.2] 棋盘游戏 Shuttle Puzzle 1 / 1 4
1408 P2741   [USACO4.4.3] 重叠的图像 Frame Up 1 / 1 5
1409 P2742   【模板】二维凸包 / [USACO5.1.1] 圈奶牛Fencing the Cows 1 / 1 5
1410 P2743   [USACO5.1.2] 乐曲主题Musical Themes 1 / 3 5
1414 P2744   [USACO5.3.2] 量取牛奶Milk Measuring 1 / 1 5
1415 P2745   [USACO5.3.3] 窗体面积Window Area 1 / 2 5
1417 P2747   [USACO5.4.2] 周游加拿大 Canada Tour 1 / 1 5
1411 P2749   [IOI 1998 / USACO5.1.3] 夜空繁星 Starry Night 1 / 2 4
1420 P2750   [IOI 2001 / USACO5.5.3] 贰五语言 Two Five 1 / 3 6
1403 P2751   [IOI 1996 / USACO4.2.3] 工序安排 Job Processing 1 / 1 5
1404 P2752   [USACO4.3.2] 街道赛跑Street Race 1 / 1 3
1405 P2753   [USACO4.3.3] 字母游戏 Letter Game 1 / 4 5
1976 P2853   [USACO06DEC] Cow Picnic S 1 / 1 3
2144 P2863   [USACO06JAN] The Cow Prom S 1 / 1 4
2004 P2866   [USACO06NOV] Bad Hair Day S 1 / 1 3
2026 P2882   [USACO07MAR] Face The Right Way G 1 / 1 4
1936 P2895   [USACO08FEB] Meteor Shower S 1 / 1 3
2121 P2910   [USACO08OPEN] Clear And Present Danger S 1 / 1 3
2274 P2973   [USACO10HOL] Driving Out the Piggies G 1 / 3 6
2192 P2986   [USACO10MAR] Great Cow Gathering G 1 / 1 4
2023 P3017   [USACO11MAR] Brownie Slicing G 1 / 1 5
2027 P3029   [USACO11NOV] Cow Lineup S 1 / 1 3
2102 P3128   [USACO15DEC] Max Flow P 1 / 1 4
2009 P3143   [USACO16OPEN] Diamond Collector S 1 / 1 3
2182 P3146   [USACO16OPEN] 248 G 1 / 1 4
2174 P3147   [USACO16OPEN] 262144 P 1 / 1 5
1961 P3405   [USACO16DEC] Cities and States S 1 / 1 2
1913 P3612   [USACO17JAN] Secret Cow Code S 1 / 1 2
1357 P3650   [USACO1.3.6] 滑雪课程设计Ski Course Design 1 / 1 2
1349 P3864   [USACO1.2.3] 命名那个数字 Name That Number 1 / 2 3
2029 P4375   [USACO18OPEN] Out of Sorts G 1 / 1 5
2110 P5836   [USACO19DEC] Milk Visits S 1 / 1 3
1426 P6432   [USACO6.2.3] 形成的区域 Shaping Regions 1 / 1 3
1430 SP4587   [USACO 6.4.2]FENCE3 - Electric Fences 1 / 1 5
774 T1294   [USACO07DEC] Charm Bracelet S 0 / 0 2
823 T1343   [USACO2.4] 牛的旅行 Cow Tours 0 / 0 4
825 T1345   [USACO3.2] 香甜的黄油 Sweet Butter 0 / 0 3
830 T1350   [USACO3.1] 最短网络 Agri-Net 0 / 0 3
854 T1375   [USACO3.3.1] 骑马修栅栏 Riding the Fences 0 / 0 4
1418 USACO543   [USACO 5.4.3]Character Recognition 1 / 1 5
1421 USACO611    [USACO 6.1.1]Postal Vans 1 / 1 5
1422 USACO612    [USACO 6.1.2]Character Recognition 1 / 1 5
1423 USACO613    [USACO 6.1.3]Cow XOR 1 / 1 5
1424 USACO621   [USACO 6.2.1]Calf Flac 1 / 1 3
1427 USACO631   [USACO 6.3.1]Fence Rails 1 / 1 5
1428 USACO632    [USACO 6.3.2]Character Recognition 1 / 4 5
1429 USACO641   [USACO 6.4.1The Primes 1 / 1 5
1431 USACO643   [USACO 6.4.3]Wisconsin Squares 1 / 1 5
1432 USACO651    [USACO 6.5.1]All Latin Squares 1 / 1 5
1433 USACO652   [USACO 6.5.2]Closed Fences 1 / 3 5
1434 USACO653   [USACO 6.5.3]Character Recognition 1 / 1 3

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