summaryrefslogtreecommitdiff
path: root/jni/ruby/benchmark/bm_app_pentomino.rb
blob: 59c63f358e96c2ad10b2a437eb6060088ae9270b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
#!/usr/local/bin/ruby
# This program is contributed by Shin Nishiyama


# modified by K.Sasada

NP = 5
ROW = 8 + NP
COL = 8

$p = []
$b = []
$no = 0

def piece(n, a, nb)
  nb.each{|x|
    a[n] = x
    if n == NP-1
      $p << [a.sort]
    else
      nbc=nb.dup
      [-ROW, -1, 1, ROW].each{|d|
        if x+d > 0 and not a.include?(x+d) and not nbc.include?(x+d)
          nbc << x+d
        end
      }
      nbc.delete x
      piece(n+1,a[0..n],nbc)
    end
  }
end

def kikaku(a)
  a.collect {|x| x - a[0]}
end
def ud(a)
  kikaku(a.collect {|x| ((x+NP)%ROW)-ROW*((x+NP)/ROW) }.sort)
end
def rl(a)
  kikaku(a.collect {|x| ROW*((x+NP)/ROW)+ROW-((x+NP)%ROW)}.sort)
end
def xy(a)
  kikaku(a.collect {|x| ROW*((x+NP)%ROW) + (x+NP)/ROW }.sort)
end

def mkpieces
  piece(0,[],[0])
  $p.each do |a|
    a0 = a[0]
    a[1] = ud(a0)
    a[2] = rl(a0)
    a[3] = ud(rl(a0))
    a[4] = xy(a0)
    a[5] = ud(xy(a0))
    a[6] = rl(xy(a0))
    a[7] = ud(rl(xy(a0)))
    a.sort!
    a.uniq!
  end
  $p.uniq!.sort! {|x,y| x[0] <=> y[0] }
end

def mkboard
  (0...ROW*COL).each{|i|
    if i % ROW >= ROW-NP
      $b[i] = -2
    else
      $b[i] = -1
    end
    $b[3*ROW+3]=$b[3*ROW+4]=$b[4*ROW+3]=$b[4*ROW+4]=-2
  }
end

def pboard
  return # skip print
  print "No. #$no\n"
  (0...COL).each{|i|
    print "|"
    (0...ROW-NP).each{|j|
      x = $b[i*ROW+j]
      if x < 0
        print "..|"
      else
        printf "%2d|",x+1
      end
    }
    print "\n"
  }
  print "\n"
end

$pnum=[]
def setpiece(a,pos)
  if a.length == $p.length then
    $no += 1
    pboard
    return
  end
  while $b[pos] != -1
    pos += 1
  end
  ($pnum - a).each do |i|
    $p[i].each do |x|
      f = 0
      x.each{|s|
        if $b[pos+s] != -1
          f=1
          break
        end
      }
      if f == 0 then
        x.each{|s|
          $b[pos+s] = i
        }
        a << i
        setpiece(a.dup, pos)
        a.pop
        x.each{|s|
          $b[pos+s] = -1
        }
      end
    end
  end
end

mkpieces
mkboard
$p[4] = [$p[4][0]]
$pnum = (0...$p.length).to_a
setpiece([],0)


__END__

# original

NP = 5
ROW = 8 + NP
COL = 8

$p = []
$b = []
$no = 0

def piece(n,a,nb)
  for x in nb
    a[n] = x
    if n == NP-1
      $p << [a.sort]
    else
      nbc=nb.dup
      for d in [-ROW, -1, 1, ROW]
        if x+d > 0 and not a.include?(x+d) and not nbc.include?(x+d)
          nbc << x+d
        end
      end
      nbc.delete x
      piece(n+1,a[0..n],nbc)
    end
  end
end

def kikaku(a)
  a.collect {|x| x - a[0]}
end
def ud(a)
  kikaku(a.collect {|x| ((x+NP)%ROW)-ROW*((x+NP)/ROW) }.sort)
end
def rl(a)
  kikaku(a.collect {|x| ROW*((x+NP)/ROW)+ROW-((x+NP)%ROW)}.sort)
end
def xy(a)
  kikaku(a.collect {|x| ROW*((x+NP)%ROW) + (x+NP)/ROW }.sort)
end

def mkpieces
  piece(0,[],[0])
  $p.each do |a|
    a0 = a[0]
    a[1] = ud(a0)
    a[2] = rl(a0)
    a[3] = ud(rl(a0))
    a[4] = xy(a0)
    a[5] = ud(xy(a0))
    a[6] = rl(xy(a0))
    a[7] = ud(rl(xy(a0)))
    a.sort!
    a.uniq!
  end
  $p.uniq!.sort! {|x,y| x[0] <=> y[0] }
end

def mkboard
  for i in 0...ROW*COL
    if i % ROW >= ROW-NP
      $b[i] = -2
    else
      $b[i] = -1
    end
    $b[3*ROW+3]=$b[3*ROW+4]=$b[4*ROW+3]=$b[4*ROW+4]=-2
  end
end

def pboard
  print "No. #$no\n"
  for i in 0...COL
    print "|"
    for j in 0...ROW-NP
      x = $b[i*ROW+j]
      if x < 0
        print "..|"
      else
        printf "%2d|",x+1
      end
    end
    print "\n"
  end
  print "\n"
end

$pnum=[]
def setpiece(a,pos)
  if a.length == $p.length then
    $no += 1
    pboard
    return
  end
  while $b[pos] != -1
    pos += 1
  end
  ($pnum - a).each do |i|
    $p[i].each do |x|
      f = 0
      for s in x do
        if $b[pos+s] != -1
          f=1
          break
        end
      end
      if f == 0 then
        for s in x do
          $b[pos+s] = i
        end
        a << i
        setpiece(a.dup, pos)
        a.pop
        for s in x do
          $b[pos+s] = -1
        end
      end
    end
  end
end

mkpieces
mkboard
$p[4] = [$p[4][0]]
$pnum = (0...$p.length).to_a
setpiece([],0)