結果
問題 | No.1030 だんしんぐぱーりない |
ユーザー | tktk_snsn |
提出日時 | 2021-06-03 22:54:26 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 717 ms / 2,000 ms |
コード長 | 4,924 bytes |
コンパイル時間 | 386 ms |
コンパイル使用メモリ | 82,432 KB |
実行使用メモリ | 115,508 KB |
最終ジャッジ日時 | 2024-11-17 12:24:13 |
合計ジャッジ時間 | 25,203 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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 | 40 ms
52,864 KB |
testcase_01 | AC | 41 ms
53,504 KB |
testcase_02 | AC | 41 ms
52,992 KB |
testcase_03 | AC | 40 ms
52,736 KB |
testcase_04 | AC | 40 ms
52,992 KB |
testcase_05 | AC | 610 ms
110,080 KB |
testcase_06 | AC | 531 ms
105,872 KB |
testcase_07 | AC | 484 ms
90,496 KB |
testcase_08 | AC | 474 ms
96,344 KB |
testcase_09 | AC | 574 ms
113,108 KB |
testcase_10 | AC | 449 ms
86,116 KB |
testcase_11 | AC | 586 ms
99,328 KB |
testcase_12 | AC | 573 ms
105,984 KB |
testcase_13 | AC | 536 ms
106,368 KB |
testcase_14 | AC | 608 ms
106,396 KB |
testcase_15 | AC | 432 ms
86,784 KB |
testcase_16 | AC | 573 ms
98,356 KB |
testcase_17 | AC | 548 ms
111,360 KB |
testcase_18 | AC | 645 ms
108,544 KB |
testcase_19 | AC | 515 ms
89,204 KB |
testcase_20 | AC | 524 ms
95,360 KB |
testcase_21 | AC | 516 ms
101,888 KB |
testcase_22 | AC | 528 ms
95,708 KB |
testcase_23 | AC | 598 ms
95,488 KB |
testcase_24 | AC | 534 ms
89,728 KB |
testcase_25 | AC | 541 ms
97,408 KB |
testcase_26 | AC | 468 ms
84,096 KB |
testcase_27 | AC | 486 ms
84,492 KB |
testcase_28 | AC | 624 ms
100,352 KB |
testcase_29 | AC | 507 ms
105,528 KB |
testcase_30 | AC | 502 ms
96,384 KB |
testcase_31 | AC | 499 ms
94,860 KB |
testcase_32 | AC | 549 ms
107,392 KB |
testcase_33 | AC | 564 ms
108,772 KB |
testcase_34 | AC | 423 ms
86,864 KB |
testcase_35 | AC | 702 ms
115,200 KB |
testcase_36 | AC | 704 ms
115,200 KB |
testcase_37 | AC | 717 ms
114,540 KB |
testcase_38 | AC | 712 ms
115,456 KB |
testcase_39 | AC | 706 ms
115,508 KB |
testcase_40 | AC | 41 ms
52,992 KB |
testcase_41 | AC | 40 ms
52,992 KB |
ソースコード
import sys input = sys.stdin.buffer.readline sys.setrecursionlimit(10 ** 7) inf = 10 ** 9 class SegTree(object): def __init__(self, N, op_data, u_data): self._n = N self.log = (N-1).bit_length() self.size = 1 << self.log self.op = op_data self.e = u_data self.data = [u_data] * (2 * self.size) # self.len = [1] * (2 * self.size) def _update(self, i): self.data[i] = self.op(self.data[i << 1], self.data[i << 1 | 1]) def initialize(self, arr=None): """ segtreeをarrで初期化する。len(arr) == Nにすること """ if arr: for i, a in enumerate(arr, self.size): self.data[i] = a for i in reversed(range(1, self.size)): self._update(i) # self.len[i] = self.len[i << 1] + self.len[i << 1 | 1] def update(self, p, x): """ data[p] = x とする (0-indexed)""" p += self.size self.data[p] = x for i in range(1, self.log + 1): self._update(p >> i) def get(self, p): """ data[p]を返す """ return self.data[p + self.size] def prod(self, l, r): """ op_data(data[l], data[l+1], ..., data[r-1])を返す (0-indexed) """ sml = self.e smr = self.e l += self.size r += self.size while l < r: if l & 1: sml = self.op(sml, self.data[l]) l += 1 if r & 1: r -= 1 smr = self.op(self.data[r], smr) l >>= 1 r >>= 1 return self.op(sml, smr) def all_prod(self): """ op(data[0], data[1], ... data[N-1])を返す """ return self.data[1] def max_right(self, l, func): """ func(l, l+1, ..., r-1) = True, func(l, l+1, ..., r-1, r) = Falseとなる r を返す """ if l == self._n: return self._n l += self.size sm = self.e while True: while l % 2 == 0: l >>= 1 if not func(self.op(sm, self.data[l])): while l < self.size: l <<= 1 if func(self.op(sm, self.data[l])): sm = self.op(sm, self.data[l]) l += 1 return l - self.size sm = self.op(sm, self.data[l]) l += 1 if (l & -l) == l: break return self._n def min_left(self, r, func): """ func( l, l+1, ..., r-1) = True, func(l-1, l, l+1, ..., r-1) = Falseとなる l を返す """ if r == 0: return 0 r += self.size sm = self.e while True: r -= 1 while r > 1 and r & 1: r >>= 1 if not func(self.op(self.data[r], sm)): while r < self.size: r = r << 1 | 1 if func(self.op(self.data[r], sm)): sm = self.op(self.data[r], sm) r -= 1 return r + 1 - self.size sm = self.op(self.data[r], sm) if (r & -r) == r: break return 0 N, K, Q = map(int, input().split()) D = N.bit_length() C = list(map(int, input().split())) A = list(map(lambda x: int(x)-1, input().split())) G = [[] for _ in range(N)] parent = [[0] * N for _ in range(D)] for _ in range(N-1): e, f = map(int, input().split()) e -= 1 f -= 1 G[f].append(e) parent[0][e] = f for i in range(D-1): for j in range(N): parent[i+1][j] = parent[i][parent[i][j]] def lowest_ancestor(x, h): for d in reversed(range(D)): if h >= (1 << d): x = parent[d][x] h -= (1 << d) return x timer = 0 d = -1 depth = [0] * N tour = [0] * (2 * N) t_in = [0] * N que = [~0, 0] while que: s = que.pop() if s >= 0: d += 1 t_in[s] = timer tour[timer] = d timer += 1 for t in G[s]: que.append(~t) que.append(t) C[t] = max(C[t], C[s]) depth[t] = depth[s] + 1 else: s = ~s d -= 1 tour[timer] = d timer += 1 atoi = [-1] * K for i in range(K): atoi[i] = t_in[A[i]] left = SegTree(K, min, inf) right = SegTree(K, max, -inf) seg = SegTree(2*N, min, inf) left.initialize(atoi) right.initialize(atoi) seg.initialize(tour) for _ in range(Q): flag, x, y = map(int, input().split()) x -= 1 y -= 1 if flag == 1: # A[x] -> y A[x] = y atoi[x] = t_in[y] left.update(x, t_in[y]) right.update(x, t_in[y]) else: L = left.prod(x, y+1) R = right.prod(x, y+1) H = seg.prod(L, R+1) m = lowest_ancestor(A[x], depth[A[x]] - H) print(C[m])