結果

問題 No.2387 Yokan Factory
ユーザー hibit_athibit_at
提出日時 2023-07-21 22:17:54
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 689 ms / 5,000 ms
コード長 5,790 bytes
コンパイル時間 1,743 ms
コンパイル使用メモリ 121,320 KB
実行使用メモリ 13,892 KB
最終ジャッジ日時 2023-10-21 22:18:10
合計ジャッジ時間 8,349 ms
ジャッジサーバーID
（参考情報） 		judge11 / judge10
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 2 ms
4,348 KB
testcase_01 AC 2 ms
4,348 KB
testcase_02 AC 2 ms
4,348 KB
testcase_03 AC 2 ms
4,348 KB
testcase_04 AC 2 ms
4,348 KB
testcase_05 AC 2 ms
4,348 KB
testcase_06 AC 2 ms
4,348 KB
testcase_07 AC 2 ms
4,348 KB
testcase_08 AC 2 ms
4,348 KB
testcase_09 AC 2 ms
4,348 KB
testcase_10 AC 2 ms
4,348 KB
testcase_11 AC 2 ms
4,348 KB
testcase_12 AC 2 ms
4,348 KB
testcase_13 AC 2 ms
4,348 KB
testcase_14 AC 2 ms
4,348 KB
testcase_15 AC 290 ms
13,892 KB
testcase_16 AC 190 ms
12,700 KB
testcase_17 AC 460 ms
12,984 KB
testcase_18 AC 299 ms
11,360 KB
testcase_19 AC 501 ms
9,908 KB
testcase_20 AC 297 ms
8,780 KB
testcase_21 AC 567 ms
11,304 KB
testcase_22 AC 276 ms
8,636 KB
testcase_23 AC 527 ms
9,844 KB
testcase_24 AC 248 ms
9,276 KB
testcase_25 AC 261 ms
7,056 KB
testcase_26 AC 616 ms
10,536 KB
testcase_27 AC 689 ms
11,264 KB
testcase_28 AC 4 ms
4,348 KB
testcase_29 AC 6 ms
4,348 KB
testcase_30 AC 5 ms
4,348 KB
testcase_31 AC 4 ms
4,348 KB
testcase_32 AC 3 ms
4,348 KB
testcase_33 AC 3 ms
4,348 KB
testcase_34 AC 5 ms
4,348 KB
testcase_35 AC 5 ms
4,348 KB
testcase_36 AC 3 ms
4,348 KB
testcase_37 AC 2 ms
4,348 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 # 

#include <algorithm>
#include <iostream>
#include <iomanip>
#include <limits.h>
#include <map>
#include <math.h>
#include <numeric>
#include <queue>
#include <set>
#include <sstream>
#include <string>
#include <utility>
#include <vector>
#include <stack>
#include <complex>

using namespace std;
#define rep(i, n) for (int i = 0; i < n; i++)
#define rep1(i, n) for (int i = 1; i < n + 1; i++)
#define rev(i, n) for (int i = n - 1; i >= 0; i--)
#define all(A) A.begin(), A.end()
#define itr(A, l, r) A.begin() + l, A.begin() + r
#define debug(var) cout << #var << " = " << var << endl;
typedef long long ll;

template <typename T1, typename T2>
ostream &operator<<(ostream &os, const pair<T1, T2> &p)
{
    os << "(" << p.first << "," << p.second << ")";
    return os;
}

template <typename T1, typename T2>
istream &operator>>(istream &is, pair<T1, T2> &p)
{
    is >> p.first >> p.second;
    return is;
}

template <typename T>
ostream &operator<<(ostream &os, const vector<T> &v)
{
    for (int i = 0; i < (int)v.size(); i++)
    {
        os << v[i] << (i + 1 != (int)v.size() ? " " : "");
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, const vector<vector<T>> &v)
{
    for (int i = 0; i < (int)v.size(); i++)
    {
        os << v[i] << endl;
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, const vector<vector<vector<T>>> &v)
{
    for (int i = 0; i < (int)v.size(); i++)
    {
        os << "i = " << i << endl;
        os << v[i];
    }
    return os;
}

template <typename T>
istream &operator>>(istream &is, vector<T> &v)
{
    for (T &in : v)
        is >> in;
    return is;
}

template <typename T, typename S>
ostream &operator<<(ostream &os, map<T, S> &mp)
{
    for (auto &[key, val] : mp)
    {
        os << key << ":" << val << " ";
    }
    cout << endl;
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, set<T> st)
{
    auto itr = st.begin();
    for (int i = 0; i < (int)st.size(); i++)
    {
        os << *itr << (i + 1 != (int)st.size() ? " " : "");
        itr++;
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, multiset<T> st)
{
    auto itr = st.begin();
    for (int i = 0; i < (int)st.size(); i++)
    {
        os << *itr << (i + 1 != (int)st.size() ? " " : "");
        itr++;
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, queue<T> q)
{
    while (q.size())
    {
        os << q.front() << " ";
        q.pop();
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, deque<T> q)
{
    while (q.size())
    {
        os << q.front() << " ";
        q.pop_front();
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, stack<T> st)
{
    while (st.size())
    {
        os << st.top() << " ";
        st.pop();
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, priority_queue<T> pq)
{
    while (pq.size())
    {
        os << pq.top() << " ";
        pq.pop();
    }
    return os;
}

template <typename T>
ostream &operator<<(ostream &os, priority_queue<T, vector<T>, greater<T>> mpq)
{
    while (mpq.size())
    {
        os << mpq.top() << " ";
        mpq.pop();
    }
    return os;
}

int main()
{
    ll n, m, x;
    cin >> n >> m >> x;
    using S = pair<pair<ll, ll>, ll>;
    vector<vector<S>> to(n, vector<S>());
    rep(i, m)
    {
        ll u, v, a, b;
        cin >> u >> v >> a >> b;
        u--;
        v--;
        to[u].push_back({{a, b}, v});
        to[v].push_back({{a, b}, u});
    }
    // debug(to);
    ll ng = 1e18;
    ll ok = 0;
    while (abs(ng - ok) > 1)
    {
        ll mid = ng + ok;
        mid /= 2;
        // debug(mid);
        priority_queue<S, vector<S>, greater<S>> q;
        q.push({{0, 0}, 0});
        vector<ll> dist(n, 1e18);
        while (q.size())
        {
            auto [info, now] = q.top();
            q.pop();
            // debug(now);
            auto [cost, width] = info;
            if (cost >= dist[now])
            {
                continue;
            }
            dist[now] = cost;
            for (auto [next_info, next] : to[now])
            {
                // debug(next);
                // debug(next_info);
                auto [next_cost, next_width] = next_info;
                if (next_width < mid)
                {
                    continue;
                }
                // debug(next_info);
                if (cost + next_cost >= dist[next])
                {
                    continue;
                }
                q.push({{cost + next_cost, next_width}, next});
            }
        }
        // debug(dist);
        if (dist[n - 1] <= x)
        {
            ok = mid;
        }
        else
        {
            ng = mid;
        }
    }
    // cout << ok << endl;
    priority_queue<S, vector<S>, greater<S>> q;
    q.push({{0, 0}, 0});
    vector<ll> dist(n, 1e18);
    while (q.size())
    {
        auto [info,now] = q.top();
        q.pop();
        // debug(now);
        auto [cost, width] = info;
        if (cost >= dist[now])
        {
            continue;
        }
        dist[now] = cost;
        for (auto [next_info, next] : to[now])
        {
            // debug(next);
            // debug(next_info);
            auto [next_cost, next_width] = next_info;
            if (next_width < ok)
            {
                continue;
            }
            // debug(next_info);
            if (cost + next_cost >= dist[next])
            {
                continue;
            }
            q.push({{cost + next_cost, next_width}, next});
        }
    }
    // debug(dist);
    if (dist[n - 1] <= x)
    {
        cout << ok << endl;
    }
    else
    {
        cout << -1 << endl;
    }
}
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