結果
問題 | No.1640 簡単な色塗り |
ユーザー | ansain |
提出日時 | 2021-08-07 03:54:38 |
言語 | Python3 (3.12.2 + numpy 1.26.4 + scipy 1.12.0) |
結果 |
AC
|
実行時間 | 800 ms / 2,000 ms |
コード長 | 3,716 bytes |
コンパイル時間 | 177 ms |
コンパイル使用メモリ | 11,128 KB |
実行使用メモリ | 80,860 KB |
最終ジャッジ日時 | 2023-09-12 03:38:48 |
合計ジャッジ時間 | 27,340 ms |
ジャッジサーバーID (参考情報) |
judge15 / judge13 |
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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 | 19 ms
9,032 KB |
testcase_01 | AC | 19 ms
8,904 KB |
testcase_02 | AC | 19 ms
8,904 KB |
testcase_03 | AC | 19 ms
8,876 KB |
testcase_04 | AC | 330 ms
56,616 KB |
testcase_05 | AC | 497 ms
80,860 KB |
testcase_06 | AC | 19 ms
8,884 KB |
testcase_07 | AC | 18 ms
9,016 KB |
testcase_08 | AC | 19 ms
8,864 KB |
testcase_09 | AC | 19 ms
8,872 KB |
testcase_10 | AC | 381 ms
48,400 KB |
testcase_11 | AC | 309 ms
41,280 KB |
testcase_12 | AC | 266 ms
38,464 KB |
testcase_13 | AC | 652 ms
73,056 KB |
testcase_14 | AC | 653 ms
73,104 KB |
testcase_15 | AC | 201 ms
31,460 KB |
testcase_16 | AC | 230 ms
35,592 KB |
testcase_17 | AC | 533 ms
57,568 KB |
testcase_18 | AC | 50 ms
13,984 KB |
testcase_19 | AC | 257 ms
37,952 KB |
testcase_20 | AC | 381 ms
46,676 KB |
testcase_21 | AC | 305 ms
40,516 KB |
testcase_22 | AC | 41 ms
11,848 KB |
testcase_23 | AC | 417 ms
49,428 KB |
testcase_24 | AC | 103 ms
19,956 KB |
testcase_25 | AC | 272 ms
38,532 KB |
testcase_26 | AC | 450 ms
53,056 KB |
testcase_27 | AC | 187 ms
30,584 KB |
testcase_28 | AC | 629 ms
70,720 KB |
testcase_29 | AC | 453 ms
52,948 KB |
testcase_30 | AC | 75 ms
16,404 KB |
testcase_31 | AC | 612 ms
58,664 KB |
testcase_32 | AC | 481 ms
52,220 KB |
testcase_33 | AC | 307 ms
38,396 KB |
testcase_34 | AC | 430 ms
45,536 KB |
testcase_35 | AC | 307 ms
38,352 KB |
testcase_36 | AC | 73 ms
16,384 KB |
testcase_37 | AC | 97 ms
19,176 KB |
testcase_38 | AC | 501 ms
54,088 KB |
testcase_39 | AC | 180 ms
28,264 KB |
testcase_40 | AC | 183 ms
28,784 KB |
testcase_41 | AC | 410 ms
46,524 KB |
testcase_42 | AC | 205 ms
31,480 KB |
testcase_43 | AC | 239 ms
32,416 KB |
testcase_44 | AC | 234 ms
31,784 KB |
testcase_45 | AC | 163 ms
26,264 KB |
testcase_46 | AC | 75 ms
17,276 KB |
testcase_47 | AC | 55 ms
14,256 KB |
testcase_48 | AC | 482 ms
54,848 KB |
testcase_49 | AC | 35 ms
11,176 KB |
testcase_50 | AC | 19 ms
8,932 KB |
testcase_51 | AC | 19 ms
9,048 KB |
testcase_52 | AC | 800 ms
80,820 KB |
testcase_53 | AC | 786 ms
80,860 KB |
07_evil_01.txt | AC | 1,881 ms
153,056 KB |
07_evil_02.txt | TLE | - |
ソースコード
from collections import defaultdict import sys from collections import defaultdict, Counter, deque from itertools import permutations, combinations, product, combinations_with_replacement, groupby, accumulate import operator from math import sqrt, gcd, factorial # from math import isqrt, prod, comb #python3.8用(notpypy) #from bisect import bisect_left, bisect_right #from functools import lru_cache, reduce #from heapq import heappush, heappop, heapify, heappushpop, heapreplace #import numpy as np #import networkx as nx #from networkx.utils import UnionFind #from numba import njit, b1, i1, i4, i8, f8 # numba例 @njit(i1(i4[:], i8[:, :]),cache=True) 引数i4配列、i8 2次元配列,戻り値i1 #from scipy.sparse import csr_matrix #from scipy.sparse.csgraph import shortest_path, floyd_warshall, dijkstra, bellman_ford, johnson, NegativeCycleError, maximum_bipartite_matching, maximum_flow, minimum_spanning_tree def input(): return sys.stdin.readline().rstrip() def divceil(n, k): return 1+(n-1)//k # n/kの切り上げを返す def yn(hantei, yes='Yes', no='No'): print(yes if hantei else no) # https://note.nkmk.me/python-union-find/から一部改変 class UnionFind(): def __init__(self, n): self.n = n self.parents = [-1] * n self.group_num = n self.check = [0]*n def find(self, x): if self.parents[x] < 0: return x else: self.parents[x] = self.find(self.parents[x]) return self.parents[x] def union(self, x, y): x = self.find(x) y = self.find(y) if x == y: return self.group_num -= 1 if self.parents[x] > self.parents[y]: x, y = y, x self.parents[x] += self.parents[y] self.parents[y] = x self.check[x] |= self.check[y] def size(self, x): return -self.parents[self.find(x)] def same(self, x, y): return self.find(x) == self.find(y) def members(self, x): root = self.find(x) return [i for i in range(self.n) if self.find(i) == root] def roots(self): return [i for i, x in enumerate(self.parents) if x < 0] def group_count(self): return self.group_num def all_group_members(self): self.all_group_member = defaultdict(list) for i in range(self.n): self.all_group_member[self.find(i)].append(i) return self.all_group_member def __str__(self): return '\n'.join('{}: {}'.format(r, self.members(r)) for r in self.roots()) def main(): mod = 10**9+7 mod2 = 998244353 n = int(input()) uf = UnionFind(n) ab = [list(map(lambda x: int(x)-1, input().split())) for i in range(n)] ans = [None]*n left = [] edges = [[] for i in range(n)] for i, (a, b) in enumerate(ab): if uf.same(a, b): if uf.check[uf.find(a)]: yn(0) return uf.check[uf.find(a)] = 1 left.append(a) ans[i] = a+1 else: uf.union(a, b) edges[b].append([a, i]) edges[a].append([b, i]) if 0 != 0: pass else: #yn(1) d = deque() dist = [-1]*n for l in left: d.append(l) dist[l] = 0 while d: v = d.popleft() for i, edgenum in edges[v]: if dist[i] != -1: continue dist[i] = dist[v] + 1 ans[edgenum] = i+1 d.append(i) if set(ans)==set(range(1,n+1)): yn(1) print(*ans, sep="\n") else: yn(0) if __name__ == '__main__': main()