結果
問題 | No.2387 Yokan Factory |
ユーザー | Ricky_pon |
提出日時 | 2023-07-21 21:34:45 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
RE
|
実行時間 | - |
コード長 | 5,954 bytes |
コンパイル時間 | 1,758 ms |
コンパイル使用メモリ | 156,076 KB |
実行使用メモリ | 15,312 KB |
最終ジャッジ日時 | 2024-09-21 22:53:53 |
合計ジャッジ時間 | 6,672 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 1 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | AC | 389 ms
14,924 KB |
testcase_16 | AC | 282 ms
15,312 KB |
testcase_17 | AC | 524 ms
13,828 KB |
testcase_18 | RE | - |
testcase_19 | RE | - |
testcase_20 | AC | 367 ms
9,676 KB |
testcase_21 | AC | 701 ms
12,824 KB |
testcase_22 | RE | - |
testcase_23 | RE | - |
testcase_24 | RE | - |
testcase_25 | RE | - |
testcase_26 | AC | 120 ms
11,080 KB |
testcase_27 | RE | - |
testcase_28 | AC | 5 ms
5,376 KB |
testcase_29 | AC | 6 ms
5,376 KB |
testcase_30 | AC | 6 ms
5,376 KB |
testcase_31 | AC | 5 ms
5,376 KB |
testcase_32 | AC | 4 ms
5,376 KB |
testcase_33 | AC | 3 ms
5,376 KB |
testcase_34 | AC | 7 ms
5,376 KB |
testcase_35 | AC | 4 ms
5,376 KB |
testcase_36 | AC | 3 ms
5,376 KB |
testcase_37 | AC | 2 ms
5,376 KB |
ソースコード
#include <string.h> #include <algorithm> #include <array> #include <bitset> #include <cassert> #include <cfloat> #include <chrono> #include <ciso646> #include <climits> #include <cmath> #include <complex> #include <cstdio> #include <cstdlib> #include <fstream> #include <functional> #include <iomanip> #include <iostream> #include <map> #include <numeric> #include <optional> #include <queue> #include <random> #include <set> #include <stack> #include <string> #include <unordered_map> #include <unordered_set> #include <utility> #include <vector> #define REP_OVERLOAD(arg1, arg2, arg3, arg4, NAME, ...) NAME #define REP3(i, l, r, s) \ for (int i = int(l), rep3_r = int(r), rep3_s = int(s); i < rep3_r; \ i += rep3_s) #define REP2(i, l, r) REP3(i, l, r, 1) #define REP1(i, n) REP2(i, 0, n) #define rep(...) REP_OVERLOAD(__VA_ARGS__, REP3, REP2, REP1, )(__VA_ARGS__) #define repin(i, l, r) for (int i = int(l), repin_r = int(r); i <= repin_r; ++i) #define RREP_OVERLOAD(arg1, arg2, arg3, arg4, NAME, ...) NAME #define RREP3(i, l, r, s) \ for (int i = int(r) - 1, rrep3_l = int(l), rrep3_s = int(s); i >= rrep3_l; \ i -= rrep3_s) #define RREP2(i, l, r) RREP3(i, l, r, 1) #define RREP1(i, n) RREP2(i, 0, n) #define rrep(...) RREP_OVERLOAD(__VA_ARGS__, RREP3, RREP2, RREP1, )(__VA_ARGS__) #define rrepin(i, l, r) \ for (int i = int(r), rrepin_l = int(l); i >= rrepin_l; --i) #define all(v) v.begin(), v.end() #include <algorithm> #include <cassert> #include <iostream> #include <vector> namespace rklib { template <class T> std::ostream &operator<<(std::ostream &os, const std::vector<T> &v) { os << "["; for (auto d : v) os << d << ", "; return os << "]"; } // a <- max(a, b) template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return true; } return false; } // a <- min(a, b) template <class T> bool chmin(T &a, const T &b) { if (a > b) { a = b; return true; } return false; } // if a < 0: a <- b // else: a <- min(a, b) template <class T> bool chmin_non_negative(T &a, const T &b) { if (a < 0 || a > b) { a = b; return true; } return false; } // floor(num / den) template <class T> T div_floor(T num, T den) { if (den < 0) num = -num, den = -den; return num >= 0 ? num / den : (num + 1) / den - 1; } // ceil(num / den) template <class T> T div_ceil(T num, T den) { if (den < 0) num = -num, den = -den; return num <= 0 ? num / den : (num - 1) / den + 1; } } // namespace rklib using namespace std; using namespace rklib; using lint = long long; using ulint = unsigned long long; using pii = pair<int, int>; using pll = pair<lint, lint>; template <class T> using vec = vector<T>; template <class T> using vvec = vec<vec<T>>; template <class T> using vvvec = vec<vvec<T>>; #include <limits> #include <queue> #include <vector> namespace rklib { template <class T = int> struct Edge { int from, to; T cost; int idx; Edge() = default; Edge(int from, int to, T cost = 1, int idx = 0) : from(from), to(to), cost(cost), idx(idx) {} }; template <class T = int> struct Graph { std::vector<std::vector<Edge<T>>> es; int edge_num; Graph(int n) : edge_num(0) { es.resize(n); } int size() { return es.size(); } void add_edge(int from, int to, T cost, int idx) { es[from].emplace_back(from, to, cost, idx); ++edge_num; } std::vector<Edge<T>> edges() { std::vector<Edge<T>> res(edge_num); for (int v = 0; v < (int)es.size(); ++v) { for (auto& e : es[v]) { res[e.idx] = e; } } return res; } std::vector<Edge<T>>& operator[](int i) { return es[i]; } }; } // namespace rklib #include <vector> namespace rklib { template <class T> std::pair<std::vector<T>, std::vector<int>> dijkstra(Graph<T> &gr, int s) { constexpr auto INF = std::numeric_limits<T>::max(); std::vector<T> dist(gr.size(), INF); std::vector<int> pre(gr.size(), -1); std::priority_queue<std::pair<T, int>, std::vector<std::pair<T, int>>, std::greater<std::pair<T, int>>> que; que.emplace(0, s); dist[s] = 0; while (!que.empty()) { auto [d, v] = que.top(); que.pop(); if (d > dist[v]) continue; for (auto &e : gr[v]) if (chmin(dist[e.to], dist[v] + e.cost)) { que.emplace(dist[e.to], e.to); pre[e.to] = e.idx; } } return {dist, pre}; } template <class T> std::pair<T, std::vector<int>> dijkstra(Graph<T> &gr, int s, int t) { auto [dist, pre] = dijkstra(gr, s); std::vector<int> res; auto es = gr.edges(); for (int e = pre[t]; e >= 0; e = pre[es[e].from]) { res.push_back(e); } reverse(res.begin(), res.end()); return {dist[t], res}; } } // namespace rklib int main() { int n, m, x; cin >> n >> m >> x; vec<pair<pii, pii>> es; rep(i, m) { int u, v, a, b; cin >> u >> v >> a >> b; --u; --v; es.push_back(make_pair(make_pair(u, v), make_pair(a, b))); } auto check = [&](int mid) { Graph<lint> gr(n); int cur = 0; for (auto [p, q] : es) { if (q.second < mid) continue; gr.add_edge(p.first, p.second, q.first, cur); ++cur; gr.add_edge(p.second, p.first, q.first, cur); ++cur; } auto ds = dijkstra(gr, 0).first; return ds[n - 1] <= x; }; int low = 0, high = 1'000'000'010; if (!check(low)) { cout << "-1" << endl; return 0; } while (high - low > 1) { int mid = (high + low) / 2; (check(mid) ? low : high) = mid; } cout << low << endl; }