結果
| 問題 | No.1283 Extra Fee |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2021-01-21 06:57:07 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 2,045 bytes |
| 記録 | |
| コンパイル時間 | 205 ms |
| コンパイル使用メモリ | 82,304 KB |
| 実行使用メモリ | 327,296 KB |
| 最終ジャッジ日時 | 2024-12-24 04:38:15 |
| 合計ジャッジ時間 | 61,053 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 11 TLE * 19 |
ソースコード
#region Header
#!/usr/bin/env python3
# from typing import *
import sys
import io
import math
import collections
import decimal
import itertools
from queue import PriorityQueue
import bisect
import heapq
def input():
return sys.stdin.readline()[:-1]
sys.setrecursionlimit(1000000)
#endregion
# _INPUT = """10 34
# 7 5 2286
# 2 2 3140
# 9 3 4600
# 9 6 5277
# 9 4 9057
# 1 6 1156
# 1 7 2356
# 6 10 2106
# 9 5 1192
# 4 6 9022
# 8 2 3221
# 8 9 7792
# 4 3 609
# 4 7 6593
# 2 6 3097
# 8 6 4348
# 2 10 213
# 7 3 7105
# 10 9 4412
# 6 4 4410
# 8 5 2870
# 2 5 2185
# 2 7 8469
# 7 10 3727
# 5 5 4076
# 10 6 2106
# 1 4 385
# 1 8 9753
# 6 7 3240
# 9 2 4081
# 3 7 4784
# 6 1 6748
# 5 10 6062
# 2 3 7218
# """
# sys.stdin = io.StringIO(_INPUT)
def f(N, P):
dist = [[10**10 for _ in range(N)] for _ in range(N)]
hq = []
heapq.heappush(hq, (0, (0, 0)))
dist[0][0] = 0
path = [[None for _ in range(N)] for _ in range(N)]
while hq:
d, (h, w) = heapq.heappop(hq)
if d > dist[h][w]:
continue
for (dh, dw) in [(-1, 0), (1, 0), (0, -1), (0, 1)]:
(h1, w1) = (h + dh, w + dw)
if 0 <= h1 <= N-1 and 0 <= w1 <= N-1:
d1 = dist[h][w] + P[h1][w1]
if d1 < dist[h1][w1]:
dist[h1][w1] = d1
path[h1][w1] = (h, w)
heapq.heappush(hq, (d1, (h1, w1)))
return dist[N-1][N-1]
def main():
N, M = map(int, input().split())
P = [[1 for _ in range(N)] for _ in range(N)]
P[0][0] = 0
points = []
for _ in range(M):
h, w, c = map(int, input().split())
h -= 1
w -= 1
points.append((h, w, c))
P[h][w] = c + 1
n_min = 10**10
for i in range(M):
h, w, c = points[i]
P[h][w] = 1
n = f(N, P)
n_min = min(n_min, n)
P[h][w] = c + 1
print(n_min)
if __name__ == '__main__':
main()