結果

問題 No.1036 Make One With GCD 2
ユーザー 👑 obakyanobakyan
提出日時 2020-04-25 10:38:50
言語 Lua
(LuaJit 2.1.1696795921)
結果
TLE  
実行時間 -
コード長 2,569 bytes
コンパイル時間 346 ms
コンパイル使用メモリ 7,204 KB
実行使用メモリ 75,040 KB
最終ジャッジ日時 2024-11-07 04:06:15
合計ジャッジ時間 35,244 ms
ジャッジサーバーID
(参考情報)
judge4 / judge3
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 1,348 ms
71,108 KB
testcase_01 AC 367 ms
52,852 KB
testcase_02 AC 458 ms
48,532 KB
testcase_03 AC 47 ms
9,600 KB
testcase_04 AC 87 ms
16,256 KB
testcase_05 AC 2 ms
5,248 KB
testcase_06 AC 2 ms
5,248 KB
testcase_07 AC 159 ms
27,928 KB
testcase_08 AC 122 ms
25,620 KB
testcase_09 AC 996 ms
60,460 KB
testcase_10 AC 930 ms
59,768 KB
testcase_11 AC 1,019 ms
60,244 KB
testcase_12 AC 928 ms
59,832 KB
testcase_13 AC 1,402 ms
74,944 KB
testcase_14 AC 1,418 ms
75,040 KB
testcase_15 AC 1,320 ms
73,796 KB
testcase_16 AC 1,331 ms
73,900 KB
testcase_17 AC 1,401 ms
74,584 KB
testcase_18 AC 4 ms
5,248 KB
testcase_19 AC 4 ms
5,248 KB
testcase_20 AC 5 ms
5,248 KB
testcase_21 AC 5 ms
5,248 KB
testcase_22 AC 1,321 ms
73,420 KB
testcase_23 AC 967 ms
64,480 KB
testcase_24 AC 1,378 ms
74,368 KB
testcase_25 AC 1,266 ms
68,832 KB
testcase_26 AC 1,275 ms
69,364 KB
testcase_27 AC 1 ms
5,248 KB
testcase_28 AC 2 ms
5,248 KB
testcase_29 AC 2 ms
5,248 KB
testcase_30 AC 2 ms
5,248 KB
testcase_31 AC 2 ms
5,248 KB
testcase_32 AC 3 ms
5,248 KB
testcase_33 AC 2 ms
5,248 KB
testcase_34 AC 3 ms
5,248 KB
testcase_35 AC 2 ms
5,248 KB
testcase_36 AC 2 ms
5,248 KB
testcase_37 AC 2 ms
5,248 KB
testcase_38 AC 457 ms
48,048 KB
testcase_39 TLE -
testcase_40 AC 964 ms
64,488 KB
testcase_41 AC 1,660 ms
72,104 KB
testcase_42 AC 1,628 ms
72,108 KB
testcase_43 AC 1,624 ms
72,240 KB
testcase_44 AC 1,728 ms
72,112 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

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 C = ffi.C

local function getgcd(x, y)
  while 0LL < x do
    x, y = y % x, x
  end
  return y
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
  self.spos = {}
  for i = 1, n do
    local sp, sz = 1, bls(1, stagenum - 1)
    while(i - 1) % sz ~= 0 do
      sp = sp + 1
      sz = brs(sz, 1)
    end
    self.spos[i] = sp
  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 = self.spos[left], 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
    while 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 = self.spos[l + sz], 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 st = SegTree.new(n, getgcd, 0LL)
ffi.cdef[[
long long atoll(const char*);
]]

local s = io.read()
do
  local i = 1
  for w in s:gmatch("%d+") do
    st.stage[st.stagenum][i] = C.atoll(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())
0