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  1. #!/usr/bin/env ruby
  2. #http://m...content-available-to-author-only...b.io/2016/10/01/doukaku-e08.html
  3. #http://q...content-available-to-author-only...a.com/mtsmfm/items/94ebd353fa3b7e608f68
  4.  
  5. H=W=19
  6. while gets
  7. 	# 要素が0..18の数値2つ(x座標,y座標)からなる配列
  8. 	a=$_.chomp.split(',').map{|e|e.scan(/[a-z]\d+/).map{|f|[f[0].ord-97,f[1..-1].to_i-1]}.sort}
  9. 	h=a.map{|e|Hash[*e.flat_map{|(x,y)|[x+y*W,1]}]}
  10. 	puts 2.times.map{|i|
  11. 		#相手のフィールド：駒を配置して累積和を取る
  12. 		#cf: http://j...content-available-to-author-only...c.jp/onlinejudge/description.jsp?id=0098
  13. 		opponent=(H+1).times.map{[0]*(W+1)}
  14. 		a[i^1].each{|x,y|opponent[y+1][x+1]=1}
  15. 		(H+1).times.map{|y|W.times.map{|x|opponent[y][x+1]+=opponent[y][x]}}
  16. 		H.times.map{|y|(W+1).times.map{|x|opponent[y+1][x]+=opponent[y][x]}}
  17.  
  18. if false
  19. 		#自分の駒を列挙するには方法が2つある
  20. 		#1:3点を列挙して、矩形をなすもう1点の存在を判定する
  21. 		#2:x座標の2つ組とy座標の2つ組をそれぞれ列挙して、4点の存在を判定する
  22. 		#今回は、列挙する個数が少ない方を自動で選択するようにした
  23. 		#(テストケースに依存するが、今回は0.6sから0.5sに高速化)
  24. 		xl,yl=a[i].transpose.map{|e|e.uniq.sort}
  25. 		f = if a[i].size*(a[i].size+1)*(a[i].size+2)/6 < xl.size*(xl.size+1)*yl.size*(yl.size+1)/4
  26. 			Enumerator.new{|y|
  27. 				a[i].combination(3){|b|
  28. 					if b[0][0]==b[1][0] && b[0][1]==b[2][1] && h[i][b[2][0]+b[1][1]*W]
  29. 						y<<[b[1][0],b[2][0]+1,b[2][1],b[1][1]+1]
  30. 					end
  31. 				}
  32. 			}
  33. 		else
  34. 			Enumerator.new{|y|
  35. 				xl.combination(2).to_a.product(yl.combination(2).to_a).each{|(w1,w2),(h1,h2)|
  36. 					if h[i][w1+h1*W] && h[i][w1+h2*W] && h[i][w2+h1*W] && h[i][w2+h2*W]
  37. 						y<<[w1,w2+1,h1,h2+1]
  38. 					end
  39. 				}
  40. 			}
  41. 		end
  42. else
  43. 		#cia_ranaさんのアルゴリズムを再現してみました
  44. 		f = Enumerator.new{|z|
  45. 			st=0
  46. 			a[i].chunk{|x,y|x}.each{|k,v|
  47. 				st+=v.size
  48. 				(v.size-1).times{|j|
  49. 					same_y=a[i][st..-1].select{|x0,y0|y0==v[j][1]}
  50. 					(j+1...v.size).each{|k|
  51. 						if q=same_y.find{|x0,y0|h[i][x0+v[k][1]*W]}
  52. 							z<<[v[j][0],q[0]+1,v[j][1],v[k][1]+1]
  53. 						end
  54. 					}
  55. 				}
  56. 			}
  57. 		}
  58. end
  59.  
  60. 		#4点が存在することを確認したら、最後に、内部に相手の駒がないことを確認し、陣地に加える
  61. 		#陣地の管理はいもす法( http://i...content-available-to-author-only...z.jp/algorithms/imos_method.html )を用いる
  62. 		#cf: http://q...content-available-to-author-only...a.com/cielavenir/items/f5c3fcc0553ce0751b29 (paiza poh5 4b)
  63. 		imos=(H+1).times.map{[0]*(W+1)}
  64. 		f.each{|w1,w2,h1,h2|
  65. 			if opponent[h1][w1]-opponent[h1][w2]-opponent[h2][w1]+opponent[h2][w2]==0
  66. 				imos[h1+1][w1+1]+=1
  67. 				imos[h1+1][w2]-=1
  68. 				imos[h2][w1+1]-=1
  69. 				imos[h2][w2]+=1
  70. 			end
  71. 		}
  72. 		(H+1).times.map{|y|W.times.map{|x|imos[y][x+1]+=imos[y][x]}}
  73. 		H.times.map{|y|(W+1).times.map{|x|imos[y+1][x]+=imos[y][x]}}
  74. 		r=0
  75. 		(H+1).times.map{|y|(W+1).times.map{|x|r+=1 if imos[y][x]>0}}
  76. 		r
  77. 	}*','
  78. 	STDOUT.flush
  79. end
  80.  
Success #stdin #stdout 0.1s 10400KB
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a2a3b1b4c1c4d2d3,l9
a1a6b3b4c2c5d2d5e3e4f1f6,l9
stdout
copy 
5,3
0,0
1,1
7,2
8,0
306,0
28,0
4,0
0,8
7,0
10,0
0,8
0,6
0,3
0,28
0,0
21,0
8,8
0,3
0,6
0,24
3,0
9,0
7,0
1,9
12,1
7,2
4,7
7,10
4,9
7,7
6,0
0,6
320,0
0,0
18,18
36,36
54,54
72,72
90,90
108,108
126,126
144,144
0,0
306,0
16,0
5,0
25,0
https://ideone.com/cFZZXQ
yhpg e08
language:
Ruby (ruby 2.5.5)
created:
7 years ago
visibility:
secret

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