結果
| 問題 |
No.1036 Make One With GCD 2
|
| コンテスト | |
| ユーザー |
👑 |
| 提出日時 | 2020-04-25 09:12:28 |
| 言語 | Lua (LuaJit 2.1.1734355927) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 2,595 bytes |
| コンパイル時間 | 106 ms |
| コンパイル使用メモリ | 6,820 KB |
| 実行使用メモリ | 75,892 KB |
| 最終ジャッジ日時 | 2024-11-07 04:00:59 |
| 合計ジャッジ時間 | 43,125 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 36 TLE * 5 |
ソースコード
local mfl, mce = math.floor, math.ceil
local mmi, mma = math.min, math.max
local bls, brs = bit.lshift, bit.rshift
local ffi = require("ffi")
local function getgcd(x, y)
if x == 0LL then return y end
if y == 0LL then return x end
while 0LL < x do
x, y = y % x, x
end
return y
end
local function lltonumber(str)
if #str < 10 then
return 1LL * tonumber(str)
else
local v1 = str:sub(#str - 8, #str)
local v2 = str:sub(1, #str - 9)
return 1000000000LL * tonumber(v2) + tonumber(v1)
end
end
local SegTree = {}
SegTree.updateAll = function(self)
for i = self.stagenum - 1, 1, -1 do
local cnt = bls(1, i - 1)
for j = 1, cnt do
self.stage[i][j] = self.func(self.stage[i + 1][j * 2 - 1], self.stage[i + 1][j * 2])
end
end
end
SegTree.create = function(self, n, func, emptyvalue)
self.func, self.emptyvalue = func, emptyvalue
local stagenum, mul = 1, 1
self.stage = {}
self.stage[1] = ffi.new("int64_t[?]", 2)
while mul < n do
mul, stagenum = mul * 2, stagenum + 1
self.stage[stagenum] = ffi.new("int64_t[?]", mul + 1)
end
self.stagenum = stagenum
-- for i = 1, mul do self.stage[stagenum][i] = emptyvalue end
end
SegTree.setSilent = function(self, idx, value)
self.stage[self.stagenum][idx] = value
end
SegTree.right_bound = function(self, left, right)
local ret, retpos = self.emptyvalue, left - 1
local stage, l, r = 1, left, right
local stagenum = self.stagenum
while true do
local sz = bls(1, stagenum - stage)
while (l - 1) % sz ~= 0 or r + 1 - l < sz do
stage = stage + 1
sz = bls(1, stagenum - stage)
end
local tmp = self.func(ret, self.stage[stage][mce(l / sz)])
if 1LL < tmp then
ret, retpos = tmp, l + sz - 1
if retpos == right then break end
if l + sz <= r then stage, l, r = 1, l + sz, r
else break end
else
if sz ~= 1 then stage, l, r = stage + 1, l, l + sz - 2
else break end
end
end
return retpos + 1
end
SegTree.new = function(n, func, emptyvalue)
local obj = {}
setmetatable(obj, {__index = SegTree})
obj:create(n, func, emptyvalue)
return obj
end
local n = io.read("*n", "*l")
local s = io.read()
local st = SegTree.new(n, getgcd, 0LL)
do
local i = 1
for w in s:gmatch("%d+") do
-- st.stage[st.stagenum][i] = lltonumber(w)
st:setSilent(i, lltonumber(w))
i = i + 1
end
end
-- print(os.clock())
st:updateAll()
-- print(os.clock())
local ret = 0
local z = n
for i = n, 1, -1 do
local p = st:right_bound(i, z)
ret = ret + n + 1 - p
z = mmi(p, n)
end
print(ret)
-- print(os.clock())