Re: Puzzle

[Dang Hung Thang <thang@mathematik.uni-Bremen.de>]

Cha`o c,ac ba,c ye^u thi'ch Puzzle
  
   .............
   Dinh Thi Thanh Huong wrote:

   > Dang ngoi chuan bi presentation ngay mai ma thay ddo^' hay qua nen
   > phai nghi.
   >
   > Ba.n dde^'n 1 la`ng ho?i ba^'t cu+' 1 ng` na`o: Anh co' pha?i
   > ngu+o+`i=20
   > la`ng na`y kho^ng? Ne^'u ngu+o+=EC ta la('c thi` la`ng dda^'y no'i
   > do^'i,
   > ne^'u ga^.t thi` ngu+o+`i la`ng dda^'y no'i tha^.t.
   >
   > Vi`: Ne^'u la` la`ng A, ne^'u ba.n ho?i pha?i ngu+o+`i la`ng A
   > thi`ho. se~ ga^.t (ba?n cha^'t tha^.t tha`), ne^'u ba.n ho?i ngu+o+`i
   > la`ng B (vi`ba?n cha^'t do^'i tra') ne^n ho. cu~ng ga^.t.
   >
   > Ne^'u la` la`ng B, ne^'u ng`  ba.n ho?i la` la`ng B thi`ho. se~ la('c
   > (ba?n cha^'t do^'i tra'), ne^'u ng` ddo' la` la`ng A sang cho+i
   > thi`ho.
   > se~ cu~ng la('c vi`ho. tha^.t tha`.
   >
   > I hope it was right,
   > Huong=20
   >
   > On Wed, 2 Jul 1997, Dung Trong Nguyen wrote:
   >
   > > "Hai la`ng A va` B ca.nh nhau. Ngu+o+`i la`ng A no'i tha^.t, co`n
   > > ngu+o+`i la`ng B no'i do^'i. DDe^'n mo^.t trong hai la`ng, ho?i
   > mo^.t
   > > ca^u ma` bie^'t ddu+o+.c la` la`ng A hay B.  Ngu+o+`i ca? hai la`ng
   > > dde^`u ca^m ne^n chi? ga^.t hoa(.c la('c.  Note: ngu+o+`i la`ng na`y
   >
   > > co' the^? qua la`ng kia dde^? cho+i\."
   > >=20

The  above Puzzle bie^'n ta^'u the^m mo^.t chu't cho kho' ho+n:
" Mo^.t xa~ co' hai la`ng A va` B ca.nh nhau. Ngu+o+`i la`ng A no'i tha^.t, co`n ngu+o+`i la`ng B no'i do^'i. Ca? hai la`ng dde^` co' mo^.t so^'
ngu+o+`i ma('c be^.nh lo.an tri': Nhu+~ng ddie^`u ddu'ng thi` ngu+o+i`
loa.n tri' tin la` sai va` ngu+o+.c la.i. Sau dda^y la` mo^.t ma^?u
ddo^'i thoa.i giu+~a mo^.t kha'ch qua ddu+o+`ng va` hai ngu+o+i te^n
la` Linh va` Mai cu?a xa~ tre^n.
Kha'ch( ho?i Linh): How are you ?
Linh: Ca? hai chu'ng to^i dde^`u bi. loa.n tri'
Kha'ch (ho?i Mai): Tha^.t kho^ng
Mai: Ta^'t nhie^n la` kho^ng.
Ha`y xa'c di.nh Mai va` Linh o+? la`ng na`o bie^'t ra(`ng ho. kho^ng
cu`ng la`ng.