ID 题目 显示标签 隐藏标签 AC / 尝试 难度
545 P545  贪婪的送礼者Greedy Gift Givers 9 / 20 7
546 P546  黑色星期五Friday the Thirteenth 7 / 9 9
547 P547  坏掉的项链Broken Necklace 23 / 62 5
548 P548  挤牛奶Milking Cows 4 / 5 10
549 P549  方块转换 Transformations 3 / 3 10
550 P550  命名那个数字 Name That Number 0 / 26 10
551 P551  回文平方数 Palindromic Squares 8 / 14 8
552 P552  双重回文数 Dual Palindromes 0 / 0 (无)
553 P553  混合牛奶 Mixing Milk 13 / 141 9
554 P554  修理牛棚 Barn Repair 41 / 91 4
555 P555  最长的回文 Calf Flac 0 / 1 10
556 P556  牛式 Prime Cryptarithm 5 / 5 10
557 P557  时钟 The Clocks 0 / 0 (无)
558 P558  铺放矩形块 Packing Rectangles 0 / 0 (无)
559 P559  等差数列 Arithmetic Progressions 2 / 6 10
560 P560  母亲的牛奶 Mother's Milk 2 / 2 10
561 P561  数字三角形 Number Triangles 144 / 453 6
562 P562  回文质数 Prime Palindromes 10 / 25 6
563 P563  特殊的质数肋骨 Superprime Rib 3 / 4 10
564 P564  跳棋的挑战 Checker Challenge 7 / 26 7
565 P565  城堡 The Castle 2 / 3 10
566 P566  顺序的分数 Ordered Fractions 1 / 1 10
567 P567  三值的排序 Sorting a Three-Valued Sequence 3 / 4 10
568 P568  健康的荷斯坦奶牛 Healthy Holsteins 11 / 14 7
569 P569  海明码 Hamming Codes 54 / 129 5
570 P570  序言页码 Preface Numbering 1 / 1 10
571 P571  集合 Subset Sums 3 / 3 10
572 P572  循环数 Runaround Numbers 2 / 5 10
573 P573  派对灯 Party Lamps 1 / 2 10
574 P574  最长前缀 Longest Prefix 2 / 4 10
575 P575  奶牛家谱 Cow Pedigrees 9 / 10 9
576 P576  和为零 Zero Sum 3 / 3 10
577 P577  货币系统 Money Systems 45 / 141 6
578 P578  控制公司 Controlling Companies 1 / 2 10
579 P579  两只塔姆沃斯牛 The Tamworth Two 1 / 2 10
580 P580  穿越栅栏 Overfencing 1 / 3 10
581 P581  回家 Bessie Come Home 1 / 1 10
582 P582  牛的旅行 Cow Tours 2 / 2 10
583 P583  分数化小数 Fractions to Decimals 1 / 1 10
584 P584  最短网络Agri-Net 17 / 28 4
585 P585  总分 Score Inflation 36 / 80 4
586 P586  丑数 Humble Numbers 2 / 3 10
587 P587  形成的区域 Shaping Regions 0 / 0 (无)
588 P588  联系 Contact 0 / 1 10
589 P589  邮票 Stamps 14 / 54 7
590 P590  阶乘 Factorials 1 / 11 10
591 P591  串 Stringsobits01 0 / 0 (无)
592 P592  纺车的轮子 Spinning Wheels 2 / 2 10
593 P593  饲料调配 Feed Ratios 0 / 0 (无)
594 P594  魔板 Magic Squares 1 / 1 10
595 P595  香甜的黄油 Sweet Butter 4 / 26 9
596 P596  骑马修栅栏 Riding the Fences 20 / 158 8
597 P597  商店购物 Shopping Offers 0 / 0 (无)
598 P598  亚瑟王的宫殿 Camelot 0 / 0 (无)
600 P600  游戏 A Game 0 / 1 10
601 P601  闭合的栅栏 Closed Fences 0 / 1 10
602 P602  美国血统 American Heritage 7 / 11 8
603 P603  电网 Electric Fences 0 / 0 (无)
604 P604  “破锣摇滚”乐队 Raucous Rockers 0 / 0 (无)
605 P605  麦香牛块 Beef McNuggets 2 / 2 10
606 P606  栅栏的木料 Fence Rails 1 / 2 10
607 P607  篱笆回路 Fence Loops 2 / 4 10
608 P608  解密牛语 Cryptcowgraphy 0 / 0 (无)
609 P609  草地排水 Drainage Ditches 1 / 1 10
610 P610  完美的牛栏 The Perfect Stall 0 / 3 10
611 P611  工序安排 Job Processing 4 / 4 10
612 P612  奶牛自行车 Cowcycles 0 / 0 (无)
613 P613  逢低吸纳 Buy Low, Buy Lower 32 / 92 5
614 P614  素数方阵 The Primes 2 / 3 10
615 P615  街道赛跑 Street Race 0 / 3 10
616 P616  字母游戏 Letter Game 0 / 1 10
617 P617  棋盘游戏 Shuttle Puzzle 0 / 0 (无)
618 P618  追查坏牛奶 Pollutant Control 0 / 0 (无)
619 P619  重叠的图像 Frame Up 0 / 1 10
620 P620  圈奶牛 Fencing the Cows 1 / 2 10
621 P621  夜空繁星 Starry Night 0 / 0 (无)
622 P622  乐曲主题 Musical Themes 1 / 1 10
623 P623  蜗牛的旅行 Snail Trails 0 / 0 (无)
624 P624  电网 Electric Fences 0 / 0 (无)
625 P625  威斯康星州的牧场 Wisconsin Squares 0 / 1 10
626 P626  量取牛奶 Milk Measuring 0 / 0 (无)
627 P627  窗体面积 Window Area 0 / 0 (无)
628 P628  校园网 Network of Schools 3 / 5 10
629 P629  巨大的牛棚 Big Barn 2 / 6 10
630 P630  拉丁正方形 All Latin Squares 0 / 0 (无)
631 P631  周游加拿大 Canada Tour 0 / 1 10
632 P632  字符识别 Character Recognition 0 / 0 (无)
633 P633  漫游小镇 Betsy's Tour 0 / 0 (无)
634 P634  奶牛的电信 Telecowmunication 0 / 0 (无)
635 P635  图片 Picture 5 / 7 9
636 P636  隐藏口令 Hidden Password 0 / 2 10
637 P637  二五语言 Two Five 0 / 0 (无)
1342 P1342  路障 Roadblocks 29 / 57 3
1820 P1820  奶牛排队 5 / 12 9
2009 P2009  A 0 / 0 (无)
2010 P2010  B 0 / 0 (无)
2011 P2011  C 0 / 0 (无)
2012 P2012  D 1 / 3 10
2045 P2045  Tile Exchanging 0 / 0 (无)
2046 P2046  Cow Beauty Pageant 0 / 0 (无)

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