問題はこちら
http://nabetani.sakura.ne.jp/hena/ordf01_twicel/
２マスになるパターンを洗い出してbit演算でマッチングする方針。
以外にパターンが多かった・・。
def to_a(p)
pw = p.to_s(2)
fill = 64 - pw.size
pw = "0" * fill + pw if fill > 0
pw.scan(/\d{8}/).to_a
end
def rotate(p)
to_a(p).map{|e| e.split('')}.transpose.map{|e| e.join}.join.to_i(2)
end
def rev_h(p)
to_a(p).map{|e| e.split('').reverse.join}.join.to_i(2)
end
def rev_v(p)
to_a(p).reverse.join.to_i(2)
end
def make_masks
masks = []
p0=("01100000" +
"10010000" +
"01100000" +
"00000000" * 5).to_i(2)
m0=("01100000" +
"11110000" +
"01100000" +
"00000000" * 5).to_i(2)
p = p0
m = m0
6.times{
5.times{
masks.push [p,m]
p >>= 1
m >>= 1
}
p >>= 3
m >>= 3
}
p = rotate(p0)
m = rotate(m0)
5.times{
6.times{
masks.push [p,m]
p >>= 1
m >>= 1
}
p >>= 2
m >>= 2
}
p = ("00100000" +
"11000000" +
"00000000" * 6).to_i(2)
m = ("11100000" +
"11000000" +
"00000000" * 6).to_i(2)
masks.push [p,m]
masks.push [rev_v(p),rev_v(m)]
masks.push [rev_h(p),rev_h(m)]
masks.push [rev_v(rev_h(p)),rev_v(rev_h(m))]
p = rotate(p)
m = rotate(m)
masks.push [p,m]
masks.push [rev_v(p),rev_v(m)]
masks.push [rev_h(p),rev_h(m)]
masks.push [rev_v(rev_h(p)),rev_v(rev_h(m))]
p0= ("00100100" +
"00011000" +
"00000000" * 6).to_i(2)
m0= ("00111100" +
"00011000" +
"00000000" * 6).to_i(2)
p = p0
m = m0
masks.push [p,m]
masks.push [rev_v(p),rev_v(m)]
p = rotate(p)
m = rotate(m)
masks.push [p,m]
masks.push [rev_h(p),rev_h(m)]
p = p0 << 1
m = m0 << 1
masks.push [p,m]
masks.push [rev_v(p),rev_v(m)]
masks.push [rev_h(p),rev_h(m)]
masks.push [rev_v(rev_h(p)),rev_v(rev_h(m))]
p = rotate(p)
m = rotate(m)
masks.push [p,m]
masks.push [rev_v(p),rev_v(m)]
masks.push [rev_h(p),rev_h(m)]
masks.push [rev_v(rev_h(p)),rev_v(rev_h(m))]
p = p0 << 2
m = m0 << 2
masks.push [p,m]
masks.push [rev_v(p),rev_v(m)]
masks.push [rev_h(p),rev_h(m)]
masks.push [rev_v(rev_h(p)),rev_v(rev_h(m))]
p = rotate(p)
m = rotate(m)
masks.push [p,m]
masks.push [rev_v(p),rev_v(m)]
masks.push [rev_h(p),rev_h(m)]
masks.push [rev_v(rev_h(p)),rev_v(rev_h(m))]
p0= ("00101000" +
"00101000" +
"00010000" +
"00000000" * 5).to_i(2)
m0= ("00111000" +
"00111000" +
"00010000" +
"00000000" * 5).to_i(2)
p = p0
m = m0
masks.push [p,m]
masks.push [rev_v(p),rev_v(m)]
masks.push [rev_h(p),rev_h(m)]
masks.push [rev_v(rev_h(p)),rev_v(rev_h(m))]
p = rotate(p)
m = rotate(m)
masks.push [p,m]
masks.push [rev_v(p),rev_v(m)]
masks.push [rev_h(p),rev_h(m)]
masks.push [rev_v(rev_h(p)),rev_v(rev_h(m))]
p = p0 << 1
m = m0 << 1
masks.push [p,m]
masks.push [rev_v(p),rev_v(m)]
masks.push [rev_h(p),rev_h(m)]
masks.push [rev_v(rev_h(p)),rev_v(rev_h(m))]
p = rotate(p)
m = rotate(m)
masks.push [p,m]
masks.push [rev_v(p),rev_v(m)]
masks.push [rev_h(p),rev_h(m)]
masks.push [rev_v(rev_h(p)),rev_v(rev_h(m))]
p = p0 << 2
m = m0 << 2
masks.push [p,m]
masks.push [rev_v(p),rev_v(m)]
masks.push [rev_h(p),rev_h(m)]
masks.push [rev_v(rev_h(p)),rev_v(rev_h(m))]
p = rotate(p)
m = rotate(m)
masks.push [p,m]
masks.push [rev_v(p),rev_v(m)]
masks.push [rev_h(p),rev_h(m)]
masks.push [rev_v(rev_h(p)),rev_v(rev_h(m))]
masks
end
def solve(q)
bd = q.gsub('/','').to_i(16)
masks = make_masks
c = [0,0]
2.times{|i|
masks.each{|pat,mask|
c[i]+=1 if (bd & mask) == pat
}
bd = ~bd
}
c.join(',')
end
DATA.readlines.each do |line|
no,q,a = line.strip.split(/\s+/)
ans = solve(q)
print no + "\t" + ans
puts ans == a ? ' o' : ' x'
end
__END__
6 db/00/db/00/db/00/aa/aa 0,13
0 dc/bc/a7/59/03/d5/d4/ea 2,3
1 ff/ff/ff/ff/ff/ff/ff/ff 0,0
2 00/00/00/00/00/00/00/00 0,0
3 cc/33/cc/33/cc/33/cc/33 16,16
4 aa/aa/55/55/aa/aa/55/55 16,16
5 ac/a3/5c/53/ca/3a/c5/35 8,8
6 db/00/db/00/db/00/aa/aa 0,13
7 24/24/db/24/24/db/24/24 0,12
8 d7/d7/e9/f1/f7/de/60/56 3,2
9 17/7d/64/9b/a5/39/53/a6 2,2
10 bb/8f/18/fb/89/c2/c7/35 1,2
11 6d/63/20/08/54/cd/32/4f 2,2
12 a9/ca/cd/46/99/e6/f0/30 2,2
13 5b/70/fd/45/e2/a1/ab/9a 1,2
14 24/e4/a8/12/e1/a6/3f/f3 2,1
15 79/32/2e/07/d5/10/e7/9d 2,2
16 60/bc/ab/ec/1f/eb/63/2c 4,2
17 a5/dd/92/4e/67/c6/dc/34 6,1
18 aa/96/6d/67/d2/a8/ac/90 3,2
19 95/72/7d/5c/47/dc/ef/99 4,0
20 17/d6/6a/27/1f/25/26/b8 2,1
21 f0/f3/76/c5/31/ca/6b/ae 1,2
22 01/59/26/fa/8c/70/12/cd 1,4
23 1a/c3/1f/0b/83/b6/81/0d 0,5
24 4c/49/05/cf/54/bb/1f/da 1,2
25 eb/7c/d5/09/2a/c2/14/6b 0,7
26 b4/d3/4c/c4/ed/19/e8/63 1,3
27 bd/bc/6d/60/9b/00/9a/32 2,4
28 94/97/3f/e3/c7/06/15/c0 2,2
29 5f/1d/67/16/b8/f7/0a/2a 2,2
30 df/e6/f9/4f/59/e9/1f/ee 3,0
31 5a/53/9a/9a/73/b4/37/07 3,2
32 bd/87/7c/e7/c0/37/82/da 2,3
33 3d/c0/13/ac/57/3d/15/78 2,2
34 63/64/54/3a/40/28/4e/4e 0,3
35 f6/81/c9/15/00/4c/a0/a8 1,4
36 19/41/df/f8/e3/74/6b/9b 4,2
37 d5/0b/dd/35/3b/d2/0b/6b 1,5
38 08/b7/91/f3/6e/3c/74/a0 0,0
39 b8/a8/b4/a6/93/2c/94/3f 0,0
40 88/22/21/ee/dc/19/43/01 0,0
41 e1/ee/35/bc/fc/00/8e/fe 0,0
42 3c/42/63/5f/27/47/07/90 0,0