- 在线时间
- 0 小时
- 最后登录
- 2011-1-1
- 注册时间
- 2009-1-23
- 听众数
- 3
- 收听数
- 0
- 能力
- 0 分
- 体力
- 424 点
- 威望
- 0 点
- 阅读权限
- 30
- 积分
- 189
- 相册
- 1
- 日志
- 4
- 记录
- 6
- 帖子
- 107
- 主题
- 0
- 精华
- 0
- 分享
- 2
- 好友
- 31
升级   44.5% 该用户从未签到
群组: 数学建模 群组: 数学趣味、游戏、IQ等 群组: 趣味数学 群组: 加油数模,加油美国赛。 群组: 南京邮电大学数模协会 |
Sudoku is played over a 9x9 grid, divided to 3x3 sub grids called "regions": , Z5 ]: Z2 n4 {9 d2 u; L- \5 m8 T/ }
* S& @6 |3 Z/ E1 q( H# X5 |2 s
" e7 |7 B* u1 J' e) e6 X: sRegion
# e* v3 {$ v) l* h: m
' K5 T1 y9 ]" o6 v/ c' D( E S- j* [% W R1 C8 \* r
- Sudoku begins with some of the grid cells already filled with numbers:
0 g* L1 N1 R+ P# s# I- G3 C6 A
( v& N! _0 t6 ?* G+ k/ s L
( w7 }1 f6 ^9 n* j3 ?0 ], L. f4 T6 z, D2 e) M1 i* ^
- The object of Sudoku is to fill the other empty cells with numbers between 1 and 9 (1 number only in each cell) according the following guidelines:
! g, @" h: p9 t- H0 Y+ r7 p" L% M
% [6 K$ r. z8 _# _6 V$ {+ ]1. Number can appear only once on each row:
, d8 _+ q3 [9 A+ @, T. h6 F
' [" [1 `+ a/ F/ zAllowed
* C& x [- I8 T9 U$ s2 [
9 _7 z X* e/ k( k3 d) [7 @9 q6 iNot allowed ! V- U- t4 l& s! j4 I" Y
, }5 M- H* d" P, X: ~* Z( L
2. Number can appear only once on each column: # j. g0 V( H7 W7 s# j+ v
8 w% b/ Q/ J- u _, w s9 JAllowed Not allowed + k0 T8 a. i1 u) K ]4 b
+ U' S# C+ `# F" t, ^( w6 `& E8 G+ G5 R/ v; D; ]
3. Number can appear only once on each region:
) F. v% _1 P& k1 j3 R i. z# r
4 [: ^' C" V& U. OAllowed Not allowed ; T2 b9 i0 a. e& I% ]0 E; p( R- Q
3 X2 f$ O7 t7 ~+ N. U, `7 G
2 }0 z5 S7 i& A8 Z7 d' h- A summary of these guidelines would be, that a number should appear only once on each row, column and a region. |
|