結果
問題 | No.2523 Trick Flower |
ユーザー | MasKoaTS |
提出日時 | 2023-10-27 15:25:15 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 846 ms / 4,000 ms |
コード長 | 3,580 bytes |
コンパイル時間 | 280 ms |
コンパイル使用メモリ | 81,832 KB |
実行使用メモリ | 267,620 KB |
最終ジャッジ日時 | 2023-10-27 15:25:33 |
合計ジャッジ時間 | 15,879 ms |
ジャッジサーバーID (参考情報) |
judge11 / judge14 |
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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 | 100 ms
85,420 KB |
testcase_01 | AC | 101 ms
85,420 KB |
testcase_02 | AC | 122 ms
85,424 KB |
testcase_03 | AC | 104 ms
85,420 KB |
testcase_04 | AC | 105 ms
85,424 KB |
testcase_05 | AC | 115 ms
85,424 KB |
testcase_06 | AC | 121 ms
85,424 KB |
testcase_07 | AC | 111 ms
88,424 KB |
testcase_08 | AC | 128 ms
88,924 KB |
testcase_09 | AC | 130 ms
88,792 KB |
testcase_10 | AC | 130 ms
88,460 KB |
testcase_11 | AC | 141 ms
88,620 KB |
testcase_12 | AC | 119 ms
88,476 KB |
testcase_13 | AC | 127 ms
88,776 KB |
testcase_14 | AC | 125 ms
88,752 KB |
testcase_15 | AC | 606 ms
261,608 KB |
testcase_16 | AC | 660 ms
262,092 KB |
testcase_17 | AC | 846 ms
267,620 KB |
testcase_18 | AC | 665 ms
263,160 KB |
testcase_19 | AC | 680 ms
251,808 KB |
testcase_20 | AC | 626 ms
243,320 KB |
testcase_21 | AC | 644 ms
224,244 KB |
testcase_22 | AC | 617 ms
256,688 KB |
testcase_23 | AC | 654 ms
260,720 KB |
testcase_24 | AC | 446 ms
152,592 KB |
testcase_25 | AC | 583 ms
247,240 KB |
testcase_26 | AC | 559 ms
237,432 KB |
testcase_27 | AC | 596 ms
261,128 KB |
testcase_28 | AC | 535 ms
226,128 KB |
testcase_29 | AC | 221 ms
104,836 KB |
testcase_30 | AC | 488 ms
176,332 KB |
testcase_31 | AC | 177 ms
91,728 KB |
testcase_32 | AC | 380 ms
139,476 KB |
testcase_33 | AC | 627 ms
207,448 KB |
ソースコード
import itertools as iter import collections as coll import heapq as hq import bisect as bis from decimal import Decimal as dec from functools import cmp_to_key import math import sys #import pypyjit #pypyjit.set_param('max_unroll_recursion=-1') sys.setrecursionlimit(10 ** 6) inp = sys.stdin.readline input = lambda : inp()[:-1] getN = lambda : int(inp()) getNs = lambda : map(int, inp().split()) getList = lambda :list(map(int, inp().split())) getStrs = lambda n : [input() for _ in [0] * n] getEdges = lambda n : [[x - 1 for x in getNs()] for _ in [0] * n] def yexit(): print("Yes"); exit(0) def nexit(): print("No"); exit(0) pi = 3.141592653589793 mod = 1000000007 MOD = 998244353 INF = 4611686018427387903 dx = [1, 0, -1, 0]; dy = [0, 1, 0, -1] #di = coll.defaultdict(int) """ 強連結成分分解(SCC) ref : https://manabitimes.jp/math/1250 """ class SCC: def __init__(self, n): self.n = n self.route = [[] for _ in [0] * n] self.rev_route = [[] for _ in [0] * n] self.label = [-1] * n self.count = 0 def add_edge(self, v_first, v_second): self.route[v_first].append(v_second) self.rev_route[v_second].append(v_first) def _build(self): self.v_list = [] self.visited = set([]) for v in range(self.n): if(v in self.visited): continue self._dfs(v) for v in reversed(self.v_list): if(self.label[v] != -1): continue self._rev_dfs(v) self.count += 1 def _dfs(self, v_start): stack = [v_start, 0] while(stack): v, id = stack[-2:] if(id == 0 and v in self.visited): stack.pop() stack.pop() continue self.visited.add(v) if(id < len(self.route[v])): stack[-1] += 1 stack.extend([self.route[v][id], 0]) continue stack.pop() self.v_list.append(stack.pop()) def _rev_dfs(self, v_start): stack = [v_start] self.label[v_start] = self.count while(stack): v_now = stack.pop() for v_next in self.rev_route[v_now]: if(self.label[v_next] != -1): continue self.label[v_next] = self.count stack.append(v_next) def construct(self): self._build() dag = [[] for _ in [0] * self.count] group = [[] for _ in [0] * self.count] for v, lb in enumerate(self.label): for v_next in self.route[v]: lb_next = self.label[v_next] if(lb == lb_next): continue dag[lb].append(lb_next) group[lb].append(v) return dag, group """ Main Code """ N = getN() A, B, C = [getList() for _ in [0] * 3] scc = SCC(N) for i, x in enumerate(C): scc.add_edge(x - 1, i) dag, groups = scc.construct() n = len(groups) a = [sum(A[x] for x in group) for group in groups] b = [sum(B[x] for x in group) for group in groups] rtree = [-1] * n for x, ys in enumerate(dag): for y in ys: rtree[y] = x def check(mid): dp = [x - mid * y for x, y in zip(a, b)] for x in range(n - 1, -1, -1): if(rtree[x] == -1 and dp[x] < 0): return False dp[rtree[x]] += min(dp[x], 0) return True ok = 0 ng = 10 ** 14 + 1 while(abs(ok - ng) > 1): mid = (ok + ng) >> 1 if check(mid): ok = mid else: ng = mid print(ok)