結果

問題 No.2387 Yokan Factory
ユーザー 👑 amentorimaru
提出日時 2023-06-14 18:51:39
言語 C++17(clang)
(17.0.6 + boost 1.87.0)
結果
AC  
実行時間 723 ms / 5,000 ms
コード長 4,515 bytes
コンパイル時間 4,774 ms
コンパイル使用メモリ 162,972 KB
実行使用メモリ 13,984 KB
最終ジャッジ日時 2024-06-23 20:26:45
合計ジャッジ時間 11,408 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge4
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 35
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 #
プレゼンテーションモードにする

#define ATCODER
#define _USE_MATH_DEFINES
#include<stdio.h>
#include<iostream>
#include<fstream>
#include<algorithm>
#include<vector>
#include<string>
#include <cassert>
#include <numeric>
#include <unordered_map>
#include <unordered_set>
#include <queue>
#include <math.h>
#include <climits>
#include <set>
#include <map>
#include <list>
#include <random>
#include <iterator>
#include <bitset>
#include <chrono>
using namespace std;
using ll = long long;
using ld = long double;
using pll = pair<ll, ll>;
using pdd = pair<ld, ld>;
//template<class T> using pq = priority_queue<T, vector<T>, greater<T>>;
#define FOR(i, a, b) for(ll i=(a); i<(b);i++)
#define REP(i, n) for(ll i=0; i<(n);i++)
#define ROF(i, a, b) for(ll i=(b-1); i>=(a);i--)
#define PER(i, n) for(ll i=n-1; i>=0;i--)
#define REPREP(i,j,a,b) for(ll i=0;i<a;i++)for(ll j=0;j<b;j++)
#define VV(type) vector< vector<type> >
#define VV2(type,n,m,val) vector< vector<type> > val;val.resize(n);for(ll i;i<n;i++)val[i].resize(m)
#define vec(type) vector<type>
#define VEC(type,n,val) vector<type> val;val.resize(n)
#define VL vector<ll>
#define VVL vector< vector<ll> >
#define VP vector< pair<ll,ll> >
#define SZ size()
#define all(i) begin(i),end(i)
#define SORT(i) sort(all(i))
#define BITI(i) (1<<i)
#define BITSET(x,i) x | (ll(1)<<i)
#define BITCUT(x,i) x & ~(ll(1)<<i)
#define EXISTBIT(x,i) (((x>>i) & 1) != 0)
#define ALLBIT(n) (ll(1)<<n-1)
#define TOMAX(n,v) n=n<v?v:n
#define TOMIN(n,v) n=n>v?v:n
#define MP(a,b) make_pair(a,b)
#define DET2(x1,y1,x2,y2) x1*y2-x2*y1
#define DET3(x1,y1,z1,x2,y2,z2,x3,y3,z3) x1*y2*z3+x2*y3*z1+x3*y1*z2-z1*y2*x3-z2*y3*x1-z3*y1*x2
#define INC(a) for(auto& v:a)v++;
#define DEC(a) for(auto& v:a)v--;
#define SQU(x) (x)*(x)
#define L0 ll(0)
#ifdef ATCODER
#include <atcoder/all>
using namespace atcoder;
using mint = modint1000000007;
using mint2 = modint998244353;
#endif
template<typename T = ll>
vector<T> read(size_t n) {
  vector<T> ts(n);
  for (size_t i = 0; i < n; i++) cin >> ts[i];
  return ts;
}
template<typename TV, const ll N> void read_tuple_impl(TV&) {}
template<typename TV, const ll N, typename Head, typename... Tail>
void read_tuple_impl(TV& ts) {
  get<N>(ts).emplace_back(*(istream_iterator<Head>(cin)));
  read_tuple_impl<TV, N + 1, Tail...>(ts);
}
template<typename... Ts> decltype(auto) read_tuple(size_t n) {
  tuple<vector<Ts>...> ts;
  for (size_t i = 0; i < n; i++) read_tuple_impl<decltype(ts), 0, Ts...>(ts);
  return ts;
}
using val = ll;
using func = ll;
val op(val a, val b) { return a + b; }
val e() { return 0; }
val mp(func f, val a) {
  if (f == -1)
    return a;
  return f;
}
func comp(func f, func g) {
  if (f == -1)
    return g;
  return f;
}
func id() { return -1; }
ll di[4] = { 1,0,-1,0 };
ll dj[4] = { 0,1,0,-1 };
//ll di[4] = { -1,-1,1,1 };
//ll dj[4] = { -1,1,-1,1 };
ll di8[8] = { 0,-1,-1,-1,0,1,1,1 };
ll dj8[8] = { -1,-1,0,1,1,1,0,-1 };
class Dijkstra {
public:
  Dijkstra(ll n) {
    size = n;
    edges.resize(n);
    dist0.resize(n);
    rev.resize(n);
  }
  void addEdge(ll from, ll to, ll cost = 0) {
    edges[from].push_back({ to,cost });
  }
  void SetDefaultDist(ll s) {
    dist0.assign(size, LLONG_MAX);
    rev.assign(size, -1);
    dist0[s] = 0;
    que.push(P(0, s));
  }
  void CalcDist() {
    while (!que.empty()) {
      P p = que.top();
      que.pop();
      ll v = p.second;
      if (dist0[v] < p.first)
        continue;
      for (ll i = 0; i < edges[v].size(); i++) {
        edge e = edges[v][i];
        if (dist0[e.to] > dist0[v] + e.cost) {
          dist0[e.to] = dist0[v] + e.cost;
          rev[e.to] = v;
          que.push(P(dist0[e.to], e.to));
        }
      }
    }
  }
  void GetDist(ll s) {
    SetDefaultDist(s);
    CalcDist();
  }
  // 基本データ
  ll size;  // 点数
  struct edge { ll to, cost; };
  typedef pair<ll, ll> P;
  priority_queue<P, vector<P>, greater<P>> que;
  vector<vector<edge>> edges;
  vector<ll> dist0;
  vector<ll> rev;
};
void solve() {
  ll n, m, x; cin >> n >> m >> x;
  auto [u, v, a, b] = read_tuple<ll, ll, ll, ll>(m);
  DEC(u);DEC(v);
  ll l = -1, r = 2e9;
  while (l + 1 < r) {
    ll mm = (l + r) / 2;
    Dijkstra dj(n);
    REP(i, m) {
      if (mm > b[i])
        continue;
      dj.addEdge(u[i], v[i], a[i]);
      dj.addEdge(v[i], u[i], a[i]);
    }
    dj.GetDist(0);
    if (dj.dist0.back() <= x) {
      l = mm;
    }
    else {
      r = mm;
    }
  }  
  cout << l;
}
int main() {
  ll t = 1;
  //cin >> t;
  while (t--) {
    solve();
  }
  return 0;
}
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