結果
問題 | No.2565 はじめてのおつかい |
ユーザー | e60e256 |
提出日時 | 2023-12-02 16:04:00 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 438 ms / 2,000 ms |
コード長 | 1,435 bytes |
コンパイル時間 | 331 ms |
コンパイル使用メモリ | 81,972 KB |
実行使用メモリ | 99,784 KB |
最終ジャッジ日時 | 2024-09-26 19:46:49 |
合計ジャッジ時間 | 16,591 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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 | 40 ms
52,608 KB |
testcase_01 | AC | 40 ms
52,992 KB |
testcase_02 | AC | 37 ms
52,352 KB |
testcase_03 | AC | 196 ms
99,784 KB |
testcase_04 | AC | 151 ms
99,328 KB |
testcase_05 | AC | 36 ms
52,864 KB |
testcase_06 | AC | 324 ms
84,856 KB |
testcase_07 | AC | 223 ms
80,688 KB |
testcase_08 | AC | 255 ms
82,364 KB |
testcase_09 | AC | 286 ms
83,776 KB |
testcase_10 | AC | 286 ms
82,272 KB |
testcase_11 | AC | 429 ms
91,152 KB |
testcase_12 | AC | 166 ms
79,360 KB |
testcase_13 | AC | 292 ms
81,476 KB |
testcase_14 | AC | 415 ms
86,852 KB |
testcase_15 | AC | 432 ms
87,144 KB |
testcase_16 | AC | 153 ms
93,696 KB |
testcase_17 | AC | 84 ms
77,484 KB |
testcase_18 | AC | 90 ms
81,908 KB |
testcase_19 | AC | 433 ms
89,460 KB |
testcase_20 | AC | 405 ms
88,368 KB |
testcase_21 | AC | 333 ms
87,276 KB |
testcase_22 | AC | 269 ms
85,140 KB |
testcase_23 | AC | 321 ms
84,632 KB |
testcase_24 | AC | 163 ms
78,712 KB |
testcase_25 | AC | 408 ms
88,408 KB |
testcase_26 | AC | 291 ms
83,960 KB |
testcase_27 | AC | 303 ms
88,936 KB |
testcase_28 | AC | 423 ms
89,804 KB |
testcase_29 | AC | 400 ms
91,236 KB |
testcase_30 | AC | 313 ms
87,972 KB |
testcase_31 | AC | 380 ms
88,540 KB |
testcase_32 | AC | 299 ms
83,884 KB |
testcase_33 | AC | 356 ms
89,160 KB |
testcase_34 | AC | 438 ms
88,608 KB |
testcase_35 | AC | 266 ms
88,948 KB |
testcase_36 | AC | 414 ms
89,648 KB |
testcase_37 | AC | 268 ms
83,796 KB |
testcase_38 | AC | 368 ms
87,992 KB |
testcase_39 | AC | 360 ms
86,580 KB |
testcase_40 | AC | 330 ms
89,752 KB |
testcase_41 | AC | 357 ms
91,344 KB |
testcase_42 | AC | 268 ms
84,024 KB |
testcase_43 | AC | 357 ms
86,708 KB |
testcase_44 | AC | 266 ms
82,380 KB |
testcase_45 | AC | 201 ms
79,940 KB |
testcase_46 | AC | 401 ms
86,996 KB |
testcase_47 | AC | 229 ms
81,648 KB |
testcase_48 | AC | 281 ms
82,816 KB |
testcase_49 | AC | 160 ms
79,104 KB |
testcase_50 | AC | 237 ms
82,452 KB |
testcase_51 | AC | 37 ms
52,608 KB |
testcase_52 | AC | 138 ms
80,128 KB |
ソースコード
import heapq def dijkstra2(adjList, s, g): # Initialize the distance from the start node s to all other nodes as infinity distance = [float('inf')] * len(adjList) distance[s] = 0 # Initialize the priority queue with the start node queue = [(0, s)] # (distance, node) while queue: # Get the node with the smallest distance dist, node = heapq.heappop(queue) # If this node has already been processed, then ignore it if dist > distance[node]: continue # Update the distances to the neighboring nodes for neighbor, cost in adjList[node]: new_dist = dist + cost if new_dist < distance[neighbor]: distance[neighbor] = new_dist heapq.heappush(queue, (new_dist, neighbor)) # If the distance to the goal node g is infinity, it means there is no path. if distance[g] == float('inf'): return 1e10 else: return distance[g] N, M = map(int, input().split()) adj_list = [[] for _ in range(N)] for i in range(M): u, v = map(int, input().split()) u -= 1 v -= 1 adj_list[u].append((v, 1)) ans1 = dijkstra2(adj_list, 0, N-2) + dijkstra2(adj_list, N-2, N-1) + dijkstra2(adj_list, N-1, 0) ans2 = dijkstra2(adj_list, 0, N-1) + dijkstra2(adj_list, N-1, N-2) + dijkstra2(adj_list, N-2, 0) ans = min(ans1, ans2) if (ans >= 1e10): print(-1) else: print(ans)