結果

問題 No.1640 簡単な色塗り
ユーザー ansainansain
提出日時 2021-08-06 22:08:50
言語 Python3
(3.12.2 + numpy 1.26.4 + scipy 1.12.0)
結果
WA  
実行時間 -
コード長 3,623 bytes
コンパイル時間 189 ms
コンパイル使用メモリ 11,160 KB
実行使用メモリ 69,540 KB
最終ジャッジ日時 2023-09-12 02:06:06
合計ジャッジ時間 31,084 ms
ジャッジサーバーID
（参考情報） 		judge13 / judge15
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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 21 ms
8,876 KB
testcase_01 AC 21 ms
8,888 KB
testcase_02 AC 21 ms
9,024 KB
testcase_03 AC 20 ms
8,944 KB
testcase_04 AC 332 ms
45,012 KB
testcase_05 AC 520 ms
69,540 KB
testcase_06 AC 21 ms
8,936 KB
testcase_07 AC 21 ms
8,888 KB
testcase_08 AC 20 ms
8,872 KB
testcase_09 WA -
testcase_10 AC 447 ms
43,588 KB
testcase_11 AC 372 ms
36,268 KB
testcase_12 AC 302 ms
33,732 KB
testcase_13 AC 729 ms
61,476 KB
testcase_14 AC 712 ms
61,688 KB
testcase_15 AC 220 ms
26,760 KB
testcase_16 AC 265 ms
30,464 KB
testcase_17 AC 627 ms
52,652 KB
testcase_18 AC 53 ms
12,880 KB
testcase_19 AC 310 ms
33,068 KB
testcase_20 AC 436 ms
41,760 KB
testcase_21 AC 366 ms
35,648 KB
testcase_22 AC 41 ms
11,504 KB
testcase_23 AC 468 ms
44,356 KB
testcase_24 AC 113 ms
18,968 KB
testcase_25 AC 304 ms
33,488 KB
testcase_26 AC 521 ms
47,952 KB
testcase_27 AC 216 ms
25,972 KB
testcase_28 AC 700 ms
59,672 KB
testcase_29 AC 505 ms
48,056 KB
testcase_30 AC 81 ms
16,296 KB
testcase_31 AC 675 ms
58,496 KB
testcase_32 AC 548 ms
52,320 KB
testcase_33 AC 350 ms
38,244 KB
testcase_34 AC 483 ms
45,680 KB
testcase_35 AC 344 ms
38,272 KB
testcase_36 AC 82 ms
16,396 KB
testcase_37 AC 107 ms
19,280 KB
testcase_38 AC 575 ms
54,156 KB
testcase_39 AC 202 ms
28,408 KB
testcase_40 AC 215 ms
28,804 KB
testcase_41 AC 499 ms
46,528 KB
testcase_42 AC 242 ms
31,704 KB
testcase_43 AC 287 ms
32,152 KB
testcase_44 AC 278 ms
31,668 KB
testcase_45 AC 191 ms
26,112 KB
testcase_46 AC 86 ms
17,228 KB
testcase_47 AC 61 ms
14,032 KB
testcase_48 AC 572 ms
54,924 KB
testcase_49 AC 38 ms
11,100 KB
testcase_50 AC 20 ms
8,940 KB
testcase_51 AC 20 ms
8,940 KB
testcase_52 AC 898 ms
69,104 KB
testcase_53 AC 883 ms
69,256 KB
07_evil_01.txt TLE -
07_evil_02.txt TLE -
権限があれば一括ダウンロードができます

ソースコード

diff # 

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)

        print(*ans, sep="\n")


if __name__ == '__main__':
    main()
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