|
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) |