結果
問題 | No.324 落ちてた閉路グラフ |
ユーザー |
👑 |
提出日時 | 2021-06-13 19:45:19 |
言語 | Lua (LuaJit 2.1.1734355927) |
結果 |
AC
|
実行時間 | 34 ms / 5,000 ms |
コード長 | 1,342 bytes |
コンパイル時間 | 319 ms |
コンパイル使用メモリ | 6,692 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-12-23 09:21:39 |
合計ジャッジ時間 | 1,674 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 34 |
ソースコード
local mmi, mma = math.min, math.maxlocal n, m = io.read("*n", "*n")local w = {}for i = 1, n dow[i] = io.read("*n")endif m == 0 then print(0) os.exit() endlocal inf = 1000000007local dp1a, dp1b = {}, {}local dp2a, dp2b = {}, {}dp1a[1] = 0dp1b[1] = -inffor i = 2, n dolocal srca = i % 2 == 0 and dp1a or dp2alocal srcb = i % 2 == 0 and dp1b or dp2blocal dsta = i % 2 == 0 and dp2a or dp1alocal dstb = i % 2 == 0 and dp2b or dp1bdsta[1] = -inffor j = 2, i dodsta[j] = mma(srca[j - 1] + w[i - 1], srcb[j - 1])if i == n thendsta[j] = dsta[j] + w[n]endendfor j = 1, i - 1 dodstb[j] = mma(srca[j], srcb[j])enddstb[i] = -infendlocal tbla = n % 2 == 0 and dp2a or dp1alocal tblb = n % 2 == 0 and dp2b or dp1blocal ret = mma(tbla[m], tblb[m])dp1a[1] = -infdp1b[1] = -inffor i = 2, n dolocal srca = i % 2 == 0 and dp1a or dp2alocal srcb = i % 2 == 0 and dp1b or dp2blocal dsta = i % 2 == 0 and dp2a or dp1alocal dstb = i % 2 == 0 and dp2b or dp1bdsta[1] = 0for j = 2, i - 1 dodsta[j] = mma(srca[j - 1] + w[i - 1], srcb[j - 1])enddsta[i] = -inffor j = 1, i - 1 dodstb[j] = mma(srca[j], srcb[j])enddstb[i] = -infendtbla = n % 2 == 0 and dp2a or dp1atblb = n % 2 == 0 and dp2b or dp1bret = mma(ret, tbla[m], tblb[m])print(ret)