結果
問題 | No.1030 だんしんぐぱーりない |
ユーザー | maspy |
提出日時 | 2020-04-18 01:07:07 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 599 ms / 2,000 ms |
コード長 | 3,040 bytes |
コンパイル時間 | 191 ms |
コンパイル使用メモリ | 82,384 KB |
実行使用メモリ | 130,908 KB |
最終ジャッジ日時 | 2024-10-03 19:52:59 |
合計ジャッジ時間 | 20,037 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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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 | 39 ms
53,988 KB |
testcase_01 | AC | 39 ms
53,976 KB |
testcase_02 | AC | 40 ms
53,648 KB |
testcase_03 | AC | 40 ms
53,724 KB |
testcase_04 | AC | 40 ms
52,748 KB |
testcase_05 | AC | 549 ms
124,852 KB |
testcase_06 | AC | 449 ms
115,336 KB |
testcase_07 | AC | 405 ms
98,208 KB |
testcase_08 | AC | 392 ms
102,176 KB |
testcase_09 | AC | 464 ms
123,604 KB |
testcase_10 | AC | 338 ms
86,700 KB |
testcase_11 | AC | 479 ms
107,676 KB |
testcase_12 | AC | 511 ms
120,064 KB |
testcase_13 | AC | 444 ms
114,992 KB |
testcase_14 | AC | 533 ms
117,804 KB |
testcase_15 | AC | 376 ms
92,648 KB |
testcase_16 | AC | 490 ms
112,684 KB |
testcase_17 | AC | 482 ms
124,072 KB |
testcase_18 | AC | 553 ms
120,928 KB |
testcase_19 | AC | 421 ms
97,868 KB |
testcase_20 | AC | 436 ms
108,288 KB |
testcase_21 | AC | 421 ms
112,804 KB |
testcase_22 | AC | 444 ms
103,236 KB |
testcase_23 | AC | 470 ms
104,796 KB |
testcase_24 | AC | 437 ms
96,940 KB |
testcase_25 | AC | 439 ms
105,864 KB |
testcase_26 | AC | 407 ms
88,796 KB |
testcase_27 | AC | 402 ms
92,400 KB |
testcase_28 | AC | 503 ms
114,868 KB |
testcase_29 | AC | 436 ms
116,412 KB |
testcase_30 | AC | 415 ms
103,136 KB |
testcase_31 | AC | 434 ms
106,116 KB |
testcase_32 | AC | 487 ms
116,340 KB |
testcase_33 | AC | 492 ms
121,120 KB |
testcase_34 | AC | 347 ms
87,188 KB |
testcase_35 | AC | 599 ms
130,908 KB |
testcase_36 | AC | 596 ms
119,448 KB |
testcase_37 | AC | 594 ms
129,448 KB |
testcase_38 | AC | 597 ms
119,504 KB |
testcase_39 | AC | 587 ms
119,220 KB |
testcase_40 | AC | 39 ms
52,904 KB |
testcase_41 | AC | 39 ms
52,952 KB |
ソースコード
import sys read = sys.stdin.buffer.read readline = sys.stdin.buffer.readline readlines = sys.stdin.buffer.readlines class SegTree: """ segment tree with point modification and range product access. """ data_unit = 1 << 30 data_f = min def __init__(self, N): self.N = N self.data = [self.data_unit] * (N + N) def build(self, raw_data): data = self.data f = self.data_f N = self.N data[N:] = raw_data[:] for i in range(N - 1, 0, -1): data[i] = f(data[i << 1], data[i << 1 | 1]) def set_val(self, i, x): data = self.data f = self.data_f i += self.N data[i] = x while i > 1: i >>= 1 data[i] = f(data[i << 1], data[i << 1 | 1]) def fold(self, L, R): """ compute for [L, R) """ vL = vR = self.data_unit data = self.data f = self.data_f L += self.N R += self.N while L < R: if L & 1: vL = f(vL, data[L]) L += 1 if R & 1: R -= 1 vR = f(data[R], vR) L >>= 1 R >>= 1 return f(vL, vR) def create_euler_tour(graph, root=1): """1-indexed graph""" V = len(graph) par = [0] * V depth = [0] * V depth[root] = 0 tour = [root] st = [root] while st: x = st[-1] if not graph[x]: st.pop() tour.append(par[x]) continue y = graph[x].pop() if y == par[x]: continue par[y] = x depth[y] = depth[x] + 1 st.append(y) tour.append(y) return tour, depth, par N, K, Q = map(int, readline().split()) C = tuple(map(int, readline().split())) A = list(map(int, readline().split())) graph = [[] for _ in range(N + 1)] lines = readlines() for line in lines[: N - 1]: e, f = map(int, line.split()) graph[f].append(e) tour, depth, parent = create_euler_tour(graph) ind = [0] * (N + 1) for i, x in enumerate(tour): ind[x] = i tour_dep = [depth[v] for v in tour] seg_min = SegTree(K) seg_max = SegTree(K) seg_max.data_f = max seg_max.data_unit = 0 seg_lca = SegTree(N + N - 1) seg_lca.data_unit = None def f(x, y): if x is None: return y if y is None: return x if depth[x] < depth[y]: return x else: return y seg_lca.data_f = f seg_lca.build(tour) def lca(x, y): return seg_lca.fold(x, y + 1) seg_min.build([ind[x] for x in A]) seg_max.build([ind[x] for x in A]) LCA = [] for query in lines[N - 1:]: t, x, y = map(int, query.split()) if t == 2: L = seg_min.fold(x - 1, y) R = seg_max.fold(x - 1, y) v = lca(L, R) LCA.append(v) else: x -= 1 i = A[x] A[x] = y seg_min.set_val(x, ind[y]) seg_max.set_val(x, ind[y]) cost = [0] * (N + 1) for v in tour: cost[v] = max(C[v - 1], cost[parent[v]]) for v in LCA: print(cost[v])