結果
| 問題 |
No.1868 Teleporting Cyanmond
|
| コンテスト | |
| ユーザー |
👑 |
| 提出日時 | 2022-03-13 23:11:31 |
| 言語 | Lua (LuaJit 2.1.1734355927) |
| 結果 |
AC
|
| 実行時間 | 114 ms / 2,000 ms |
| コード長 | 2,462 bytes |
| コンパイル時間 | 31 ms |
| コンパイル使用メモリ | 5,120 KB |
| 実行使用メモリ | 13,440 KB |
| 最終ジャッジ日時 | 2024-09-19 06:50:51 |
| 合計ジャッジ時間 | 3,148 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 25 |
ソースコード
local bls, brs = bit.lshift, bit.rshift
local Heapq = {}
Heapq.create = function(self, lt)
self.lt = lt
self.cnt = 0
self.t = {}
end
Heapq.push = function(self, v)
local hqlt = self.lt
local hqt = self.t
local c = self.cnt + 1
self.cnt = c
hqt[c] = v
while 1 < c do
local p = brs(c, 1)
if hqlt(hqt[c], hqt[p]) then
hqt[c], hqt[p] = hqt[p], hqt[c]
c = p
else
break
end
end
end
Heapq.empty = function(self)
return self.cnt == 0
end
Heapq.top = function(self)
return self.t[1]
end
Heapq.pop = function(self)
local hqlt = self.lt
local hqt = self.t
local ret = hqt[1]
local c = self.cnt
hqt[1] = hqt[c]
c = c - 1
self.cnt = c
local p = 1
while true do
local d1, d2 = p * 2, p * 2 + 1
if c < d1 then break
elseif c < d2 then
if hqlt(hqt[d1], hqt[p]) then
hqt[d1], hqt[p] = hqt[p], hqt[d1]
end
break
else
if hqlt(hqt[d1], hqt[d2]) then
if hqlt(hqt[d1], hqt[p]) then
hqt[d1], hqt[p] = hqt[p], hqt[d1]
p = d1
else break
end
else
if hqlt(hqt[d2], hqt[p]) then
hqt[d2], hqt[p] = hqt[p], hqt[d2]
p = d2
else break
end
end
end
end
return ret
end
Heapq.new = function(lt)
local obj = {}
setmetatable(obj, {__index = Heapq})
obj:create(lt)
return obj
end
local n = io.read("*n")
local hqadd = Heapq.new(function(a, b) return a < b end)
local hqrm = Heapq.new(function(a, b) return a < b end)
local rmtasks = {}
for i = 1, n + 1 do
rmtasks[i] = {}
end
for i = 1, n - 1 do
local right = io.read("*n")
for j = 1, #rmtasks[i] do
hqrm:push(rmtasks[i][j])
end
while true do
local cont = false
if not hqadd:empty() and not hqrm:empty() then
if hqadd:top() == hqrm:top() then
hqadd:pop()
hqrm:pop()
cont = true
end
end
if not cont then break end
end
local cur = hqadd:empty() and 0 or hqadd:top()
local nxt = cur + 1
hqadd:push(nxt)
table.insert(rmtasks[right + 1], nxt)
end
do
local i = n
for j = 1, #rmtasks[i] do
hqrm:push(rmtasks[i][j])
end
while true do
local cont = false
if not hqadd:empty() and not hqrm:empty() then
if hqadd:top() == hqrm:top() then
hqadd:pop()
hqrm:pop()
cont = true
end
end
if not cont then break end
end
local cur = hqadd:empty() and 0 or hqadd:top()
print(cur)
end