結果
問題 | No.1449 新プロランド |
ユーザー | 👑 obakyan |
提出日時 | 2021-08-10 22:39:29 |
言語 | Lua (LuaJit 2.1.1696795921) |
結果 |
AC
|
実行時間 | 416 ms / 2,000 ms |
コード長 | 2,526 bytes |
コンパイル時間 | 207 ms |
コンパイル使用メモリ | 6,944 KB |
実行使用メモリ | 35,716 KB |
最終ジャッジ日時 | 2024-06-06 11:09:46 |
合計ジャッジ時間 | 4,234 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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 | 3 ms
6,816 KB |
testcase_01 | AC | 4 ms
6,944 KB |
testcase_02 | AC | 6 ms
6,944 KB |
testcase_03 | AC | 3 ms
6,944 KB |
testcase_04 | AC | 3 ms
6,940 KB |
testcase_05 | AC | 416 ms
35,684 KB |
testcase_06 | AC | 187 ms
19,256 KB |
testcase_07 | AC | 128 ms
19,292 KB |
testcase_08 | AC | 382 ms
35,636 KB |
testcase_09 | AC | 28 ms
6,944 KB |
testcase_10 | AC | 170 ms
35,648 KB |
testcase_11 | AC | 81 ms
35,712 KB |
testcase_12 | AC | 313 ms
35,712 KB |
testcase_13 | AC | 52 ms
6,940 KB |
testcase_14 | AC | 100 ms
35,716 KB |
testcase_15 | AC | 221 ms
19,368 KB |
testcase_16 | AC | 64 ms
7,040 KB |
testcase_17 | AC | 164 ms
19,164 KB |
testcase_18 | AC | 2 ms
6,944 KB |
testcase_19 | AC | 26 ms
19,276 KB |
testcase_20 | AC | 2 ms
6,944 KB |
testcase_21 | AC | 86 ms
19,224 KB |
testcase_22 | AC | 5 ms
6,940 KB |
testcase_23 | AC | 160 ms
35,620 KB |
testcase_24 | AC | 21 ms
6,944 KB |
testcase_25 | AC | 4 ms
6,940 KB |
testcase_26 | AC | 4 ms
6,944 KB |
testcase_27 | AC | 407 ms
35,620 KB |
testcase_28 | AC | 91 ms
7,040 KB |
ソースコード
local mfl, mce = math.floor, math.ceil local mmi, mma = math.min, math.max local pow2 = {1} for i = 2, 28 do pow2[i] = pow2[i - 1] * 2 end local SegTree = {} SegTree.updateAll = function(self) for i = self.stagenum - 1, 1, -1 do local cnt = pow2[i] for j = 0, cnt - 1 do self.stage[cnt + j] = self.func(self.stage[(cnt + j) * 2], self.stage[(cnt + j) * 2 + 1]) end end end SegTree.create = function(self, n, func, emptyvalue) self.func, self.emptyvalue = func, emptyvalue local stagenum, mul = 1, 1 self.stage = {} -- use 1D Tree (stage[], not stage[][]) while mul < n do mul, stagenum = mul * 2, stagenum + 1 end self.stagenum = stagenum for i = 1, mul * 2 - 1 do self.stage[i] = emptyvalue end for i = 1, n do self.stage[mul + i - 1] = i end self:updateAll() end SegTree.update = function(self, idx, force) idx = idx + pow2[self.stagenum] - 1 for i = self.stagenum - 1, 1, -1 do local dst = mfl(idx / 2) local rem = dst * 4 + 1 - idx self.stage[dst] = self.func(self.stage[idx], self.stage[rem]) if not force and self.stage[dst] ~= self.stage[idx] then break end idx = dst end end SegTree.new = function(n, func, emptyvalue) local obj = {} setmetatable(obj, {__index = SegTree}) obj:create(n, func, emptyvalue) return obj end local rn, m = io.read("*n", "*n") local edge = {} for i = 1, rn do edge[i] = {} end for i = 1, m do local a, b, c = io.read("*n", "*n", "*n") edge[a][b], edge[b][a] = c, c end local d = {} for i = 1, rn do d[i] = io.read("*n") end local lim = (rn - 1) * 100 + 1 local n = lim * rn local inf = 1000000007 local len = {} local asked = {} for i = 1, n do len[i] = inf asked[i] = false end len[1] = 0 asked[n + 1] = true local function mergefunc(x, y) if asked[x] then return y elseif asked[y] then return x else return len[x] < len[y] and x or y end end local st = SegTree.new(n, mergefunc, n + 1) for i = 1, n do local src = st.stage[1] if asked[src] then break end if inf <= len[src] then break end asked[src] = true st:update(src, true) local w = mce(src / rn) local rawsrc = src - (w - 1) * rn local nxtlen = len[src] + d[rawsrc] w = w + d[rawsrc] for rawdst, c in pairs(edge[rawsrc]) do local dstlen = nxtlen + mfl(c / (w - 1)) local dst = (w - 1) * rn + rawdst if dst <= n and dstlen < len[dst] then len[dst] = dstlen st:update(dst) end end end local ret = len[n] for i = 1, lim do ret = mmi(ret, len[(i - 1) * rn + rn]) end print(ret)