結果
| 問題 |
No.1 道のショートカット
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2015-02-08 18:47:52 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
MLE
|
| 実行時間 | - |
| コード長 | 1,453 bytes |
| コンパイル時間 | 375 ms |
| コンパイル使用メモリ | 82,260 KB |
| 実行使用メモリ | 849,208 KB |
| 最終ジャッジ日時 | 2024-07-08 03:45:21 |
| 合計ジャッジ時間 | 5,176 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 7 MLE * 1 -- * 32 |
ソースコード
#!/usr/bin/env python3
import functools
import itertools
import operator
def memoize(fn):
table = {}
def func(*args):
if args not in table:
table[args] = fn(*args)
return table[args]
return func
N = int(input())
C = int(input())
V = int(input())
S = [int(s) for s in input().split()]
T = [int(t) for t in input().split()]
Y = [int(y) for y in input().split()]
M = [int(m) for m in input().split()]
RODE = list(zip(S, T, Y, M))
@memoize
def path(town, yen):
if town == 1:
return [[1]]
road = [path(s, yen - y)
for s, t, y, m in RODE if t == town and yen >= y]
if len(road) < 1:
return [[-1]]
return [p + [town] for p in functools.reduce(operator.add, road)]
@memoize
def roads(fr, to):
return [(y, m) for s, t, y, m in RODE if s == fr and t == to]
def cost_and_meter(roads):
cost = 0
meter = 0
for road in roads:
cost += road[0]
meter += road[1]
return (cost, meter)
def min_cost_and_meter(path):
road = []
for i in range(1, len(path)):
road.append(roads(path[i - 1], path[i]))
ways = itertools.product(*road)
c_m = [cost_and_meter(way) for way in ways]
path = [m for y, m in c_m if y <= C]
if len(path) == 0:
return -1
return min(path)
meters = [m for m in [min_cost_and_meter(p) for p in path(N, C)] if m > 0]
if len(meters) == 0:
print(-1)
else:
print(min(meters))