結果
問題 | No.1301 Strange Graph Shortest Path |
ユーザー | kcvlex |
提出日時 | 2020-11-27 22:18:10 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,654 bytes |
コンパイル時間 | 2,132 ms |
コンパイル使用メモリ | 163,920 KB |
実行使用メモリ | 18,280 KB |
最終ジャッジ日時 | 2023-10-09 21:21:10 |
合計ジャッジ時間 | 7,347 ms |
ジャッジサーバーID (参考情報) |
judge12 / judge11 |
(要ログイン)
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 | 2 ms
4,376 KB |
testcase_01 | AC | 1 ms
4,372 KB |
testcase_02 | WA | - |
testcase_03 | AC | 76 ms
14,476 KB |
testcase_04 | AC | 126 ms
18,056 KB |
testcase_05 | AC | 74 ms
15,392 KB |
testcase_06 | AC | 104 ms
16,972 KB |
testcase_07 | AC | 98 ms
16,344 KB |
testcase_08 | AC | 74 ms
14,600 KB |
testcase_09 | AC | 102 ms
16,340 KB |
testcase_10 | WA | - |
testcase_11 | AC | 107 ms
17,108 KB |
testcase_12 | AC | 115 ms
17,328 KB |
testcase_13 | AC | 95 ms
16,164 KB |
testcase_14 | AC | 103 ms
15,952 KB |
testcase_15 | AC | 98 ms
15,956 KB |
testcase_16 | AC | 127 ms
18,280 KB |
testcase_17 | AC | 105 ms
16,836 KB |
testcase_18 | AC | 96 ms
15,560 KB |
testcase_19 | AC | 115 ms
17,056 KB |
testcase_20 | AC | 114 ms
16,668 KB |
testcase_21 | AC | 100 ms
16,620 KB |
testcase_22 | AC | 111 ms
17,044 KB |
testcase_23 | AC | 99 ms
16,640 KB |
testcase_24 | AC | 120 ms
17,180 KB |
testcase_25 | AC | 124 ms
17,816 KB |
testcase_26 | AC | 104 ms
16,524 KB |
testcase_27 | AC | 111 ms
16,968 KB |
testcase_28 | AC | 78 ms
15,508 KB |
testcase_29 | WA | - |
testcase_30 | AC | 113 ms
17,536 KB |
testcase_31 | AC | 113 ms
17,812 KB |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | AC | 107 ms
18,256 KB |
ソースコード
#include <limits> #include <initializer_list> #include <utility> #include <bitset> #include <tuple> #include <type_traits> #include <functional> #include <string> #include <array> #include <deque> #include <list> #include <queue> #include <stack> #include <vector> #include <map> #include <set> #include <unordered_map> #include <unordered_set> #include <iterator> #include <algorithm> #include <complex> #include <random> #include <numeric> #include <iostream> #include <iomanip> #include <sstream> #include <regex> #include <cassert> #include <cstddef> #include <variant> #define endl codeforces #define ALL(v) std::begin(v), std::end(v) #define ALLR(v) std::rbegin(v), std::rend(v) using ll = std::int64_t; using ull = std::uint64_t; using pii = std::pair<int, int>; using tii = std::tuple<int, int, int>; using pll = std::pair<ll, ll>; using tll = std::tuple<ll, ll, ll>; using size_type = ssize_t; template <typename T> using vec = std::vector<T>; template <typename T> using vvec = vec<vec<T>>; template <typename T> const T& var_min(const T &t) { return t; } template <typename T> const T& var_max(const T &t) { return t; } template <typename T, typename... Tail> const T& var_min(const T &t, const Tail&... tail) { return std::min(t, var_min(tail...)); } template <typename T, typename... Tail> const T& var_max(const T &t, const Tail&... tail) { return std::max(t, var_max(tail...)); } template <typename T, typename... Tail> void chmin(T &t, const Tail&... tail) { t = var_min(t, tail...); } template <typename T, typename... Tail> void chmax(T &t, const Tail&... tail) { t = var_max(t, tail...); } template <typename T, std::size_t Head, std::size_t... Tail> struct multi_dim_array { using type = std::array<typename multi_dim_array<T, Tail...>::type, Head>; }; template <typename T, std::size_t Head> struct multi_dim_array<T, Head> { using type = std::array<T, Head>; }; template <typename T, std::size_t... Args> using mdarray = typename multi_dim_array<T, Args...>::type; template <typename T, typename F, typename... Args> void fill_seq(T &t, F f, Args... args) { if constexpr (std::is_invocable<F, Args...>::value) { t = f(args...); } else { for (size_type i = 0; i < t.size(); i++) fill_seq(t[i], f, args..., i); } } template <typename T> vec<T> make_v(size_type sz) { return vec<T>(sz); } template <typename T, typename... Tail> auto make_v(size_type hs, Tail&&... ts) { auto v = std::move(make_v<T>(std::forward<Tail>(ts)...)); return vec<decltype(v)>(hs, v); } namespace init__ { struct InitIO { InitIO() { std::cin.tie(nullptr); std::ios_base::sync_with_stdio(false); std::cout << std::fixed << std::setprecision(30); } } init_io; } template <typename T> T ceil_pow2(T bound) { T ret = 1; while (ret < bound) ret *= 2; return ret; } template <typename T> T ceil_div(T a, T b) { return a / b + !!(a % b); } int main() { ll n, m; std::cin >> n >> m; using raw_edge = std::tuple<ll, ll, ll, ll>; vec<raw_edge> edges(m); for (auto &[ u, v, c, d ] : edges) { std::cin >> u >> v >> c >> d; u--; v--; } vec<ll> cost1(m), cost2(m); vvec<pll> g(n); for (ll i = 0; i < m; i++) { auto [ u, v, c , d ] = edges[i]; cost1[i] = c; cost2[i] = d; g[u].emplace_back(v, i); g[v].emplace_back(u, i); } constexpr ll inf = 5e15; vec<bool> used(m, false); vec<ll> prev(m, -inf); auto get_adj = [&](ll u, pll e) { auto [ a, b ] = e; if (u == a) return b; else return a; }; auto get_cost = [&](ll idx) { if (used[idx]) return cost2[idx]; return cost1[idx]; }; auto dijk = [&] { std::priority_queue<tll, vec<tll>, std::greater<tll>> pq; vec<ll> dists(n, inf); dists[0] = 0; pq.emplace(0, 0, -1); while (pq.size()) { auto [ d, cur, eidx ] = pq.top(); pq.pop(); if (dists[cur] < d) continue; prev[cur] = eidx; for (auto [ nxt, i ] : g[cur]) { auto nd = d + get_cost(i); if (dists[nxt] <= nd) continue; dists[nxt] = nd; pq.emplace(nd, nxt, i); } } return dists; }; auto d1 = dijk(); ll cur = n - 1; while (cur) { auto idx = prev[cur]; used[idx] = true; auto [ u, v, c, d ] = edges[idx]; auto p = get_adj(cur, pll(u, v)); cur = p; } auto d2 = dijk(); std::cout << d1.back() + d2.back() << "\n"; return 0; }