結果

問題 No.1 道のショートカット
ユーザー terasaterasa
提出日時 2022-11-03 15:48:46
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 323 ms / 5,000 ms
コード長 2,524 bytes
コンパイル時間 459 ms
コンパイル使用メモリ 87,096 KB
実行使用メモリ 95,304 KB
最終ジャッジ日時 2023-09-25 00:42:17
合計ジャッジ時間 12,595 ms
ジャッジサーバーID
(参考情報)
judge15 / judge14
このコードへのチャレンジ
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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 169 ms
80,360 KB
testcase_01 AC 168 ms
80,040 KB
testcase_02 AC 168 ms
80,324 KB
testcase_03 AC 170 ms
80,224 KB
testcase_04 AC 165 ms
80,104 KB
testcase_05 AC 164 ms
80,032 KB
testcase_06 AC 164 ms
80,308 KB
testcase_07 AC 165 ms
80,276 KB
testcase_08 AC 252 ms
91,072 KB
testcase_09 AC 204 ms
85,644 KB
testcase_10 AC 226 ms
85,048 KB
testcase_11 AC 251 ms
87,212 KB
testcase_12 AC 323 ms
95,304 KB
testcase_13 AC 312 ms
94,872 KB
testcase_14 AC 181 ms
82,096 KB
testcase_15 AC 167 ms
80,276 KB
testcase_16 AC 181 ms
82,476 KB
testcase_17 AC 169 ms
80,576 KB
testcase_18 AC 181 ms
82,260 KB
testcase_19 AC 181 ms
82,456 KB
testcase_20 AC 229 ms
84,504 KB
testcase_21 AC 191 ms
82,816 KB
testcase_22 AC 179 ms
82,380 KB
testcase_23 AC 281 ms
91,668 KB
testcase_24 AC 295 ms
93,768 KB
testcase_25 AC 240 ms
86,392 KB
testcase_26 AC 219 ms
84,784 KB
testcase_27 AC 287 ms
90,972 KB
testcase_28 AC 179 ms
82,024 KB
testcase_29 AC 211 ms
84,228 KB
testcase_30 AC 177 ms
82,620 KB
testcase_31 AC 193 ms
82,676 KB
testcase_32 AC 245 ms
88,892 KB
testcase_33 AC 231 ms
86,256 KB
testcase_34 AC 270 ms
90,112 KB
testcase_35 AC 176 ms
82,092 KB
testcase_36 AC 195 ms
82,728 KB
testcase_37 AC 178 ms
82,244 KB
testcase_38 AC 181 ms
82,356 KB
testcase_39 AC 185 ms
82,488 KB
testcase_40 AC 180 ms
82,148 KB
testcase_41 AC 172 ms
82,084 KB
testcase_42 AC 168 ms
80,412 KB
testcase_43 AC 166 ms
80,304 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 #

from typing import List, Tuple, Optional
import sys
import itertools
import heapq
import bisect
from collections import deque, defaultdict
from functools import lru_cache, cmp_to_key

input = sys.stdin.readline

# for AtCoder Easy test
if __file__ != 'prog.py':
    # sys.setrecursionlimit(10 ** 6)
    pass


def readints(): return map(int, input().split())
def readlist(): return list(readints())
def readstr(): return input().rstrip()


class Dijkstra:
    def __init__(self, N: int, E: List[List[Tuple[int, int]]],
                 start: int = 0, inf: int = 1 << 50):
        self.N = N
        self.E = E
        self.start = start
        self.inf = inf

        self.C = [self.inf] * N
        # self.prev = [None] * N
        self._calculate()

    def get_cost(self, i: int) -> Optional[int]:
        """return cost to i-th vertex if reachable otherwise None"""
        return self.C[i] if self.reachable(i) else self.inf

    def get_path(self, i) -> Optional[List[int]]:
        """return shortest path to i-th vertex if reachable otherwise None"""
        if not self.reachable(i):
            return None

        p = []
        cur = i
        while cur is not None:
            p.append(cur)
            cur = self.prev[cur]
        p.reverse()
        return p

    def reachable(self, i) -> bool:
        """return whether i-th vertex from start is reachable"""
        return self.C[i] < self.inf

    def _calculate(self) -> None:
        h = [(0, self.start)]
        self.C[self.start] = 0
        visited = [False] * self.N

        while h:
            _, v = heapq.heappop(h)
            if visited[v] is True:
                continue
            visited[v] = True

            for c, d in self.E[v]:
                if self.C[d] > self.C[v] + c:
                    self.C[d] = self.C[v] + c
                    # self.prev[d] = v
                    heapq.heappush(h, (self.C[d], d))


N = int(input())
C = int(input())
V = int(input())
S = list(map(lambda x: int(x) - 1, input().split()))
T = list(map(lambda x: int(x) - 1, input().split()))
Y = readlist()
M = readlist()
E = [[] for _ in range(N * (C + 1))]
for i in range(V):
    for j in range(C, 0, -1):
        def h(v, c):
            return v * (C + 1) + c
        if j - Y[i] < 0:
            break
        E[h(S[i], j)].append((M[i], h(T[i], j - Y[i])))

solver = Dijkstra(N * (C + 1), E, start=C)
ans = solver.inf
for j in range(C + 1):
    ans = min(ans, solver.get_cost((N - 1) * (C + 1) + j))
print(ans if ans < solver.inf else -1)
0