結果

問題 No.1647 Travel in Mitaru city 2
ユーザー ansainansain
提出日時 2021-08-20 23:33:08
言語 Python3
(3.12.2 + numpy 1.26.4 + scipy 1.12.0)
結果
AC  
実行時間 1,391 ms / 2,500 ms
コード長 2,401 bytes
コンパイル時間 247 ms
コンパイル使用メモリ 12,672 KB
実行使用メモリ 111,284 KB
最終ジャッジ日時 2024-04-22 08:15:29
合計ジャッジ時間 46,073 ms
ジャッジサーバーID
(参考情報)
judge3 / judge1
このコードへのチャレンジ
(要ログイン)

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 31 ms
10,752 KB
testcase_01 AC 29 ms
10,752 KB
testcase_02 AC 28 ms
10,880 KB
testcase_03 AC 28 ms
11,008 KB
testcase_04 AC 35 ms
11,904 KB
testcase_05 AC 28 ms
10,752 KB
testcase_06 AC 28 ms
11,008 KB
testcase_07 AC 38 ms
12,416 KB
testcase_08 AC 1,003 ms
101,672 KB
testcase_09 AC 926 ms
94,060 KB
testcase_10 AC 1,013 ms
102,156 KB
testcase_11 AC 799 ms
84,596 KB
testcase_12 AC 812 ms
83,976 KB
testcase_13 AC 836 ms
87,680 KB
testcase_14 AC 1,047 ms
104,560 KB
testcase_15 AC 1,031 ms
103,340 KB
testcase_16 AC 962 ms
97,720 KB
testcase_17 AC 862 ms
87,936 KB
testcase_18 AC 836 ms
87,496 KB
testcase_19 AC 978 ms
105,160 KB
testcase_20 AC 962 ms
98,600 KB
testcase_21 AC 1,011 ms
106,884 KB
testcase_22 AC 1,038 ms
106,452 KB
testcase_23 AC 1,078 ms
107,072 KB
testcase_24 AC 953 ms
99,292 KB
testcase_25 AC 1,017 ms
102,108 KB
testcase_26 AC 1,042 ms
106,936 KB
testcase_27 AC 1,391 ms
108,900 KB
testcase_28 AC 1,233 ms
111,164 KB
testcase_29 AC 1,181 ms
111,160 KB
testcase_30 AC 1,048 ms
104,356 KB
testcase_31 AC 1,212 ms
111,284 KB
testcase_32 AC 1,159 ms
109,432 KB
testcase_33 AC 972 ms
101,148 KB
testcase_34 AC 1,199 ms
111,160 KB
testcase_35 AC 1,008 ms
101,572 KB
testcase_36 AC 1,336 ms
111,160 KB
testcase_37 AC 1,189 ms
111,032 KB
testcase_38 AC 953 ms
95,240 KB
testcase_39 AC 861 ms
88,584 KB
testcase_40 AC 960 ms
94,192 KB
testcase_41 AC 893 ms
88,916 KB
testcase_42 AC 965 ms
94,812 KB
testcase_43 AC 30 ms
11,008 KB
testcase_44 AC 92 ms
26,496 KB
testcase_45 AC 742 ms
75,392 KB
testcase_46 AC 894 ms
75,264 KB
testcase_47 AC 764 ms
75,264 KB
testcase_48 AC 809 ms
75,392 KB
testcase_49 AC 752 ms
75,264 KB
testcase_50 AC 727 ms
75,264 KB
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 #

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)


def main():
    sys.setrecursionlimit(10**5+1)
    mod = 10**9+7
    mod2 = 998244353
    h, w, n = map(int, input().split())
    xy = [list(map(lambda x: int(x)-1, input().split())) for i in range(n)]
    graph = [[] for i in range(h+w)]
    for i, (x, y) in enumerate(xy):
        graph[x].append([y+h, i+1])
        graph[y+h].append([x, i+1])
    visited = [0]*(h+w)
    points = []
    edges = []

    def dfs(u, p):
        visited[u] = 1
        for v, num in graph[u]:
            if v != p:
                if visited[v]==1:
                    #print(points)
                    #print(edges)
                    if v<h:
                        ans=edges[points.index(v)+1:]+[num]
                    else:
                        ans=[num]+edges[points.index(v)+1:]
                    print(len(ans))
                    print(*ans)
                    #print(points)
                    #for aa in ans:
                    #    print(xy[aa-1][0],xy[aa-1][1]+h)
                    exit()
                points.append(v)
                edges.append(num)
                dfs(v, u)
        points.pop()
        edges.pop()

    for i in range(h):
        if visited[i]==0:
            points=[i]
            edges=[-1]
            #print(i)
            dfs(i, -1)
    print(-1)


if __name__ == '__main__':
    main()
0