結果
問題 | No.1031 いたずら好きなお姉ちゃん |
ユーザー | shotoyoo |
提出日時 | 2021-05-17 23:05:47 |
言語 | PyPy3 (7.3.15) |
結果 |
RE
|
実行時間 | - |
コード長 | 5,024 bytes |
コンパイル時間 | 382 ms |
コンパイル使用メモリ | 82,304 KB |
実行使用メモリ | 101,504 KB |
最終ジャッジ日時 | 2024-10-07 04:03:52 |
合計ジャッジ時間 | 9,635 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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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 | RE | - |
testcase_01 | RE | - |
testcase_02 | RE | - |
testcase_03 | RE | - |
testcase_04 | RE | - |
testcase_05 | RE | - |
testcase_06 | RE | - |
testcase_07 | RE | - |
testcase_08 | RE | - |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | RE | - |
testcase_12 | RE | - |
testcase_13 | RE | - |
testcase_14 | RE | - |
testcase_15 | RE | - |
testcase_16 | RE | - |
testcase_17 | RE | - |
testcase_18 | RE | - |
testcase_19 | RE | - |
testcase_20 | RE | - |
testcase_21 | RE | - |
testcase_22 | RE | - |
testcase_23 | RE | - |
testcase_24 | RE | - |
testcase_25 | RE | - |
testcase_26 | RE | - |
testcase_27 | RE | - |
testcase_28 | RE | - |
testcase_29 | RE | - |
testcase_30 | RE | - |
testcase_31 | RE | - |
testcase_32 | RE | - |
testcase_33 | RE | - |
testcase_34 | RE | - |
testcase_35 | RE | - |
testcase_36 | RE | - |
testcase_37 | RE | - |
testcase_38 | RE | - |
testcase_39 | RE | - |
testcase_40 | RE | - |
testcase_41 | RE | - |
testcase_42 | RE | - |
testcase_43 | RE | - |
testcase_44 | RE | - |
testcase_45 | RE | - |
testcase_46 | RE | - |
testcase_47 | RE | - |
testcase_48 | RE | - |
testcase_49 | RE | - |
testcase_50 | RE | - |
testcase_51 | RE | - |
testcase_52 | RE | - |
testcase_53 | RE | - |
testcase_54 | RE | - |
testcase_55 | RE | - |
ソースコード
import sys input = lambda : sys.stdin.readline().rstrip() sys.setrecursionlimit(2*10**5+10) write = lambda x: sys.stdout.write(x+"\n") debug = lambda x: sys.stderr.write(x+"\n") writef = lambda x: print("{:.12f}".format(x)) ### セグメント木(はやい) class SG: def __init__(self, n, v=None, ninf=10**12): self._n = n self.ninf = ninf x = 0 while (1 << x) < n: x += 1 self._log = x self._size = 1 << self._log self._d = [self.ninf] * (2 * self._size) if v is not None: for i in range(self._n): self._d[self._size + i] = v[i] for i in range(self._size - 1, 0, -1): self._update(i) def _update(self, k): self._d[k] = op(self._d[2 * k], self._d[2 * k + 1]) def update(self, p, x): assert 0 <= p < self._n p += self._size self._d[p] = x for i in range(1, self._log + 1): # self._update(p >> i) k = p>>i self._d[k] = op(self._d[2 * k], self._d[2 * k + 1]) def get(self, p): # assert 0 <= p < self._n return self._d[p + self._size] def check(self): return [self.get(p) for p in range(self._n)] def query(self, left, right): # [l,r)の総和 assert 0 <= left <= right <= self._n sml = self.ninf smr = self.ninf left += self._size right += self._size # 外側から計算していく(lは小さい側から, rは大きい側から) while left < right: if left & 1: sml = op(sml, self._d[left]) left += 1 if right & 1: right -= 1 smr = op(self._d[right], smr) left >>= 1 right >>= 1 return op(sml, smr) def query_all(self): return self._d[1] def max_right(self, left, f): """f(op(a[l], a[l + 1], ..., a[r - 1])) = true となる最大の r -> rはf(op(a[l:r+1]))がFalseになる最小のr """ # assert 0 <= left <= self._n # assert f(ninf) if left == self._n: return self._n left += self._size sm = self.ninf first = True while first or (left & -left) != left: first = False while left % 2 == 0: left >>= 1 if not f(op(sm, self._d[left])): while left < self._size: left *= 2 if f(op(sm, self._d[left])): sm = op(sm, self._d[left]) left += 1 return left - self._size sm = op(sm, self._d[left]) left += 1 return self._n def min_left(self, right, f): """f(op(a[l], a[l + 1], ..., a[r - 1])) = true となる最小の l """ # assert 0 <= right <= self._n # assert f(ninf) if right == 0: return 0 right += self._size sm = self.ninf first = True while first or (right & -right) != right: first = False right -= 1 while right > 1 and right % 2: right >>= 1 if not f(op(self._d[right], sm)): while right < self._size: right = 2 * right + 1 if f(op(self._d[right], sm)): sm = op(self._d[right], sm) right -= 1 return right + 1 - self._size sm = op(self._d[right], sm) return 0 def nearest_larger(a): """a[i]よりa[j]が大きいようなjの最小値 """ s = [inf] si = [None] n = len(a) ans = [-1]*n for i in range(n)[::-1]: v = a[i] while s[-1]<v: s.pop() si.pop() ans[i] = si[-1] s.append(v) si.append(i) return ans class L2RM: """left-to-right maxima 配列aをi->jにいくときに、最大値が何回更新されるか """ def __init__(self, a): self.n = len(a) s = [inf] si = [-1] n = len(a) ds = [0]*n for i in range(n)[::-1]: v = a[i] while s[-1]<v: s.pop() si.pop() if si[-1]!=-1: ds[i] = ds[si[-1]] + 1 s.append(v) si.append(i) self.sg = SG(n, ds, ninf=10**12) def query(self, l, r): """[l,r]で最大値が何回更新されるか """ return self.sg.get(l) - self.sg.query(l,r+1) op = min n = int(input()) a = list(map(int, input().split())) sg = SG(n,[(v,i) for i,v in enumerate(a)],ninf=(10**12,-1)) l1 = L2RM(a) l2 = L2RM(a[::-1]) q = [(0,n-1)] ans = 0 while q: l,r = q.pop() if l==r: continue v,m = sg.query(l,r+1) ans += l1.query(m,r) + l2.query(n-1-m, n-1-l) if l!=m: q.append((l,m-1)) if r!=m: q.append((m+1,r)) print(ans)