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  1. H=0...gets.to_i
  2. W=0...gets.to_i
  3. G=readlines
  4. def z(x,y)(H===y&&W===x&&' '!=G[y][x])?1:0 end
  5. H.each{|j|W.each{|i|l=G[j][i]
  6. G[j][i]="@V;#{l}>Fb#{l}<Yd#{l*5}"[z(i+1,j)*8+z(i-1,j)*4+z(i,j+1)*2+z(i,j-1)]if' '!=l}}
  7. puts G
Success #stdin #stdout 0s 4716KB
comments (?)
stdin 
12
18
   xx  xxx  xxx   
  xxxx  xxx  xxx  
 xxxxxx  xxx  xxx 
xxx  xxx  xxx  xxx
xxxx xxx  xxx  xxx
 xxxxxx  xxx  xxx 
  xxxx  xxx  xxx  
x  xx  xxx  xxx  x
xx    xxx  xxx  xx
xxx  xxx  xxx  xxx
xxxx  xxx  xxx  xx
xxxxx  xxx  xxx  x
stdout 
   db  <xb  <xb   
  dxxb  Yxb  Yxb  
 dxxxxb  Yxb  Yxb 
dxx  xxb  xxb  xxb
Yxxb xxF  xxF  xxF
 YxxxxF  dxF  dxF 
  YxxF  dxF  dxF  
;  YF  dxF  dxF  ;
xb    dxF  dxF  dx
xxb  <xx  <xx  <xx
xxxb  Yxb  Yxb  Yx
Yxxx>  Yx>  Yx>  V
https://ideone.com/CiW0l
language:
Ruby (ruby 2.5.5)
created:
12 years ago
visibility:
public

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