提出 #76528921

ソースコード 拡げる

import sys
import heapq
from collections import defaultdict
input = sys.stdin.readline
n, m = map(int, input().split())
graph = defaultdict(list)
for _ in range(m):
    a, b, c = map(int, input().split())
    graph[a].append((c,b))
    graph[b].append((c,a))

visit = [float('inf')]*(n+1)
visit[1] = 0
heap = [(0,1)]
while heap:
    cur, node = heapq.heappop(heap)
    if visit[node] < cur:
        continue
    for weight, nxt in graph[node]:
        nxt_cost = cur + weight
        if nxt_cost < visit[nxt]:
            visit[nxt] = nxt_cost
            heapq.heappush(heap,(nxt_cost,nxt))
if visit[n] == float('inf'):
    print(-1)
else:
    print(visit[n])

提出情報

提出日時
問題 D - 最短配達ルート
ユーザ snuece_bumboo
言語 Python (PyPy 3.11-v7.3.20)
得点 400
コード長 686 Byte
結果 AC
実行時間 480 ms
メモリ 143808 KiB

ジャッジ結果

セット名 Sample All
得点 / 配点 0 / 0 400 / 400
結果
AC × 3
AC × 81
セット名 テストケース
Sample sample01.txt, sample02.txt, sample03.txt
All sample01.txt, sample02.txt, sample03.txt, in01.txt, in02.txt, in03.txt, in04.txt, in05.txt, in06.txt, in07.txt, in08.txt, in09.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in40.txt, in41.txt, in42.txt, in43.txt, in44.txt, in45.txt, in46.txt, in47.txt, in48.txt, in49.txt, in50.txt, in51.txt, in52.txt, in53.txt, in54.txt, in55.txt, in56.txt, in57.txt, in58.txt, in59.txt, in60.txt, in61.txt, in62.txt, in63.txt, in64.txt, in65.txt, in66.txt, in67.txt, in68.txt, in69.txt, in70.txt, in71.txt, in72.txt, in73.txt, in74.txt, in75.txt, in76.txt, in77.txt, in78.txt
ケース名 結果 実行時間 メモリ
in01.txt AC 76 ms 95776 KiB
in02.txt AC 75 ms 95660 KiB
in03.txt AC 75 ms 95416 KiB
in04.txt AC 76 ms 95780 KiB
in05.txt AC 76 ms 95512 KiB
in06.txt AC 135 ms 133696 KiB
in07.txt AC 75 ms 95528 KiB
in08.txt AC 101 ms 108640 KiB
in09.txt AC 428 ms 143132 KiB
in10.txt AC 387 ms 138224 KiB
in11.txt AC 475 ms 143364 KiB
in12.txt AC 466 ms 143260 KiB
in13.txt AC 273 ms 134428 KiB
in14.txt AC 450 ms 142268 KiB
in15.txt AC 443 ms 143808 KiB
in16.txt AC 177 ms 122664 KiB
in17.txt AC 198 ms 136772 KiB
in18.txt AC 282 ms 126124 KiB
in19.txt AC 76 ms 95776 KiB
in20.txt AC 398 ms 138780 KiB
in21.txt AC 177 ms 122172 KiB
in22.txt AC 76 ms 95396 KiB
in23.txt AC 77 ms 95408 KiB
in24.txt AC 77 ms 95628 KiB
in25.txt AC 78 ms 96524 KiB
in26.txt AC 77 ms 95776 KiB
in27.txt AC 78 ms 96068 KiB
in28.txt AC 456 ms 142924 KiB
in29.txt AC 347 ms 134500 KiB
in30.txt AC 77 ms 95776 KiB
in31.txt AC 76 ms 95380 KiB
in32.txt AC 77 ms 95716 KiB
in33.txt AC 76 ms 95428 KiB
in34.txt AC 77 ms 96268 KiB
in35.txt AC 76 ms 95628 KiB
in36.txt AC 77 ms 96180 KiB
in37.txt AC 462 ms 142900 KiB
in38.txt AC 480 ms 141736 KiB
in39.txt AC 455 ms 143036 KiB
in40.txt AC 436 ms 142172 KiB
in41.txt AC 77 ms 96308 KiB
in42.txt AC 78 ms 96344 KiB
in43.txt AC 423 ms 141880 KiB
in44.txt AC 415 ms 141732 KiB
in45.txt AC 450 ms 143344 KiB
in46.txt AC 453 ms 143096 KiB
in47.txt AC 187 ms 136020 KiB
in48.txt AC 202 ms 131376 KiB
in49.txt AC 432 ms 141920 KiB
in50.txt AC 137 ms 134000 KiB
in51.txt AC 433 ms 143088 KiB
in52.txt AC 396 ms 142364 KiB
in53.txt AC 77 ms 96564 KiB
in54.txt AC 78 ms 96164 KiB
in55.txt AC 391 ms 141852 KiB
in56.txt AC 379 ms 137112 KiB
in57.txt AC 92 ms 108768 KiB
in58.txt AC 342 ms 141656 KiB
in59.txt AC 76 ms 95716 KiB
in60.txt AC 76 ms 95416 KiB
in61.txt AC 76 ms 95804 KiB
in62.txt AC 76 ms 95732 KiB
in63.txt AC 76 ms 95556 KiB
in64.txt AC 76 ms 95628 KiB
in65.txt AC 77 ms 96932 KiB
in66.txt AC 77 ms 97104 KiB
in67.txt AC 76 ms 95380 KiB
in68.txt AC 76 ms 95396 KiB
in69.txt AC 76 ms 95396 KiB
in70.txt AC 75 ms 95428 KiB
in71.txt AC 332 ms 140096 KiB
in72.txt AC 324 ms 139688 KiB
in73.txt AC 108 ms 109768 KiB
in74.txt AC 109 ms 109960 KiB
in75.txt AC 76 ms 95628 KiB
in76.txt AC 75 ms 95428 KiB
in77.txt AC 430 ms 142500 KiB
in78.txt AC 371 ms 138328 KiB
sample01.txt AC 77 ms 95460 KiB
sample02.txt AC 76 ms 95628 KiB
sample03.txt AC 77 ms 95556 KiB