結果
| 問題 |
No.2805 Go to School
|
| コンテスト | |
| ユーザー |
risujiroh
|
| 提出日時 | 2024-07-12 22:54:24 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 255 ms / 2,000 ms |
| コード長 | 3,616 bytes |
| コンパイル時間 | 3,768 ms |
| コンパイル使用メモリ | 295,572 KB |
| 実行使用メモリ | 23,604 KB |
| 最終ジャッジ日時 | 2025-04-09 15:40:29 |
| 合計ジャッジ時間 | 8,510 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 36 |
ソースコード
#if __INCLUDE_LEVEL__ == 0
#include __BASE_FILE__
namespace {
void Solve() {
Int n, m, L, S, E;
Scan(n, m, L, S, E);
std::vector<std::vector<std::pair<Int, Int>>> g(n);
while (m--) {
Int a, b, t;
Scan(a, b, t);
--a, --b;
g[a].emplace_back(b, t);
g[b].emplace_back(a, t);
}
std::vector d(2, std::vector<Int>(n, INF));
for (Int z : Rep(2)) {
Int s = z * (n - 1);
for (std::priority_queue q(std::greater{}, std::vector{std::pair{d[z][s] = 0, s}}); Sz(q);) {
auto [di, i] = q.top();
q.pop();
if (di != d[z][i]) {
continue;
}
for (auto [j, t] : g[i]) {
if (Chmin(d[z][j], di + t)) {
q.emplace(d[z][j], j);
}
}
}
}
Int ans = INF;
while (L--) {
Int i;
Scan(i);
--i;
if (d[0][i] < S + E) {
Chmin(ans, std::max(d[0][i], S) + 1 + d[1][i]);
}
}
if (ans == INF) {
ans = -1;
}
Print(ans);
}
} // namespace
int main() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
std::cout << std::setprecision(std::numeric_limits<Float>::max_digits10);
Solve();
}
#else // __INCLUDE_LEVEL__
#include <bits/stdc++.h>
using Int = int64_t;
using Float = double;
namespace ranges = std::ranges;
namespace views = std::views;
inline constexpr auto Rev = views::reverse;
inline constexpr auto Map = views::transform;
inline constexpr auto Filter = views::filter;
constexpr auto Rep(Int l, Int r) { return views::iota(std::min(l, r), r); }
constexpr auto Rep(Int n) { return Rep(0, n); }
constexpr auto Rep1(Int l, Int r) { return Rep(l, r + 1); }
constexpr auto Rep1(Int n) { return Rep(1, n + 1); }
constexpr Int Sz(auto&& r) { return static_cast<Int>(ranges::size(r)); }
template <class T, class U = T> bool Chmin(T& x, U&& y) { return y < x && (x = std::forward<U>(y), true); }
template <class T, class U = T> bool Chmax(T& x, U&& y) { return x < y && (x = std::forward<U>(y), true); }
inline constexpr Int INF = [] { std::array<char, sizeof(Int)> a; a.fill(0x3f); return std::bit_cast<Int>(a); }();
template <class T> concept Range = ranges::range<T> && !std::convertible_to<T, std::string_view>;
template <class T> concept TupleLike = std::__is_tuple_like<T>::value && !Range<T>;
namespace std {
istream& operator>>(istream& is, Range auto&& r) {
for (auto&& e : r) {
is >> e;
}
return is;
}
istream& operator>>(istream& is, TupleLike auto&& t) {
return apply([&](auto&... xs) -> istream& { return (is >> ... >> xs); }, t);
}
ostream& operator<<(ostream& os, Range auto&& r) {
for (string_view sep = ""; auto&& e : r) {
os << exchange(sep, " ") << e;
}
return os;
}
ostream& operator<<(ostream& os, TupleLike auto&& t) {
const auto f = [&](auto&... xs) -> ostream& {
[[maybe_unused]] string_view sep = "";
((os << exchange(sep, " ") << xs), ...);
return os;
};
return apply(f, t);
}
} // namespace std
#define DEF_INC_OR_DEC(op) \
auto& operator op(Range auto&& r) { \
for (auto&& e : r) { \
op e; \
} \
return r; \
} \
auto& operator op(TupleLike auto&& t) { \
std::apply([](auto&... xs) { (op xs, ...); }, t); \
return t; \
}
DEF_INC_OR_DEC(++)
DEF_INC_OR_DEC(--)
#undef DEF_INC_OR_DEC
void Scan(auto&&... xs) { std::cin >> std::tie(xs...); }
void Print(auto&&... xs) { std::cout << std::tie(xs...) << '\n'; }
template <class F>
class Fix {
public:
explicit Fix(F f) : f_(std::move(f)) {}
decltype(auto) operator()(auto&&... xs) const { return f_(std::ref(*this), std::forward<decltype(xs)>(xs)...); }
private:
F f_;
};
#endif // __INCLUDE_LEVEL__
risujiroh