結果
| 問題 |
No.2248 max(C)-min(C)
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2023-07-29 23:14:56 |
| 言語 | Lua (LuaJit 2.1.1734355927) |
| 結果 |
AC
|
| 実行時間 | 419 ms / 3,000 ms |
| コード長 | 2,145 bytes |
| コンパイル時間 | 302 ms |
| コンパイル使用メモリ | 6,952 KB |
| 実行使用メモリ | 15,100 KB |
| 最終ジャッジ日時 | 2024-10-08 10:17:26 |
| 合計ジャッジ時間 | 14,645 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 51 |
ソースコード
local mmi, mma = math.min, math.max
local mfl, mce = math.floor, math.ceil
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.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 a, b = {}, {}
for i = 1, n do
a[i] = io.read("*n")
end
for i = 1, n do
b[i] = io.read("*n")
a[n + i] = mfl((a[i] + b[i]) / 2)
if b[i] < a[i] then a[i], b[i] = b[i], a[i] end
end
for i = 1, n do
a[2 * n + i] = b[i]
end
local curmax = 0
local hq = Heapq.new(function(x, y) return a[x] < a[y] end)
local bmin = 1000000007
local bmax = 0
for i = 1, n do
curmax = mma(curmax, a[i])
hq:push(i)
end
local ans = 1000000007
for i = 1, 2 * n do
local z = hq:pop()
local curmin = mmi(bmin, a[z])
ans = mmi(ans, curmax - curmin)
if z <= n then
hq:push(n + z)
curmax = mma(curmax, a[n + z])
else
curmax = mma(curmax, a[n + z])
bmin = mmi(bmin, a[n + z])
bmax = mma(bmax, a[n + z])
end
end
ans = mmi(ans, bmax - bmin)
print(ans)