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|
#!/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)
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