結果
| 問題 |
No.506 限られたジャパリまん
|
| コンテスト | |
| ユーザー |
👑 |
| 提出日時 | 2021-07-20 21:41:17 |
| 言語 | Lua (LuaJit 2.1.1734355927) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,450 bytes |
| コンパイル時間 | 412 ms |
| コンパイル使用メモリ | 5,632 KB |
| 実行使用メモリ | 5,376 KB |
| 最終ジャッジ日時 | 2024-06-28 04:26:39 |
| 合計ジャッジ時間 | 1,311 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 19 WA * 6 |
ソースコード
local bls, brs = bit.lshift, bit.rshift
local bxor = bit.bxor
local function badd(a, b) return (a + b) % mod end
local w, h, k, p = io.read("*n", "*n", "*n", "*n", "*l")
h, w = h + 1, w + 1
local row, col, name = {}, {}, {}
for i = 1, k do
local a, b, c = io.read():match("(%d+) (%d+) (%w+)")
col[i] = tonumber(a) + 1
row[i] = tonumber(b) + 1
name[i] = c
end
local map = {}
for i = 1, h do
map[i] = {}
for j = 1, w do
map[i][j] = true
end
end
for i = 1, k do
map[row[i]][col[i]] = false
end
local function grayCode(x)
return bxor(x, brs(x, 1))
end
local function grayWalk(size, add_func, rm_func, work_func)
local prv = 0
local total = bls(1, size) - 1
local bpos = {}
for i = 1, size do
bpos[bls(1, i - 1)] = i
end
work_func()
for i = 1, total do
local v = grayCode(i)
if prv < v then
prv, v = v, v - prv
add_func(bpos[v])
else
prv, v = v, prv - v
rm_func(bpos[v])
end
work_func()
end
end
local box = 0
local bcnt = 0
local t = {}
for i = 1, h do
t[i] = {}
end
local retmax, retbox = 0LL, 0
local function add_func(idx)
map[row[idx]][col[idx]] = true
bcnt = bcnt + 1
box = box + bls(1, idx - 1)
end
local function rm_func(idx)
map[row[idx]][col[idx]] = false
bcnt = bcnt - 1
box = box - bls(1, idx - 1)
end
local function work_func()
if bcnt == p then
t[1][1] = 1LL
for j = 2, w do
if map[1][j] then
if t[1][j - 1] < 0LL then
t[1][j] = -1LL
else
t[1][j] = 1LL
end
else
t[1][j] = -1LL
end
end
for i = 2, h do
t[i][1] = map[i][1] and 1LL or -1LL
for j = 2, w do
if map[i][j] then
if t[i][j - 1] < 0LL and t[i - 1][j] < 0LL then
t[i][j] = -1LL
elseif t[i][j - 1] < 0LL then
t[i][j] = t[i - 1][j]
elseif t[i - 1][j] < 0LL then
t[i][j] = t[i][j - 1]
else
t[i][j] = t[i - 1][j] + t[i][j - 1]
end
else
t[i][j] = -1LL
end
end
end
if retmax < t[h][w] then
retmax, retbox = t[h][w], box
end
end
end
grayWalk(k, add_func, rm_func, work_func)
if retmax == 0LL then
print(0)
else
retmax = tostring(retmax % 1000000007LL):gsub("LL", "")
print(retmax)
local i = 0
while 0 < retbox do
i = i + 1
if retbox % 2 == 1 then
print(name[i])
end
retbox = brs(retbox, 1)
end
end