제출 #799997

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
799997		SlavaKemDev	급행열차 20/19 (ROI19_express)	C++17	0 / 100	40 ms	5588 KiB

express

#ifdef LOCAL
#define _GLIBCXX_DEBUG
#endif
#include <iostream>
#include <utility>
#include <vector>
#include <algorithm>
#define _USE_MATH_DEFINES
#include <cmath>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <deque>
#include <fstream>
#include <random>
#include <cassert>
#include <bitset>
#include <unordered_map>
#include <unordered_set>
#include <thread>

using namespace std;

using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pll = pair<ll, ll>;
using vll = vector<ll>;
using vpll = vector<pair<ll, ll>>;
using vii = vector<int>;

#define fill(a) for (ll i = 0; i < (a).size(); i++) cin >> (a)[i]
#define mp make_pair
#define mt make_tuple
#define bs(a, b) binary_search((a).begin(), (a).end(), (b))

ld EPS = 1e-9;
ld phi = (1 + sqrt(5)) / 2;

ll MOD = 1e9 + 7;
ll INF = 1e18;
ll P = 239;
ll B = 550;

struct Edge {
    ll to, w;
};

vector<vector<Edge>> g;
vector<bitset<10001>> c;
vector<ll> order;
vector<bool> used;

void dfs(ll v) {
    used[v] = true;
    for (Edge edge : g[v])
        if (!used[edge.to])
            dfs(edge.to);
    order.push_back(v);
}

int main() {
#ifdef LOCAL
    freopen("inp.txt", "r", stdin);
    freopen("out.txt", "w", stdout);
    freopen("err.txt", "w", stderr);

    clock_t timer = clock();
#else
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.precision(64);
    cout << fixed;
#endif

    ll t;
    cin >> t;

    while (t--) {
        ll n, m, q, p;
        cin >> n >> m >> q >> p;

        assert(n <= 5000 && m <= 5000);

        g.assign(n, {});
        used.assign(n, false);
        c.assign(n, bitset<10001>());
        c[0][0] = true;

        for (ll i = 0; i < m; i++) {
            ll u, v, w;
            cin >> u >> v >> w;
            u--; v--;
            g[u].push_back({v, w});
        }

        dfs(0);
        reverse(order.begin(), order.end());

        for (ll v : order) {
            for (Edge edge : g[v])
                c[edge.to] |= c[v] << edge.w;
        }

        while (q--) {
            ll f, r;
            cin >> f >> r;
            f--;

            bool ok = false;

            for (ll i = r; i <= r * p / (p - 1); i++) ok |= c[f][i];
            cout << ok;
        }

        cout  << "\n";
    }

#ifdef LOCAL
    cout << endl << "Execution time: " << (ld)(clock() - timer) / CLOCKS_PER_SEC;
#endif
}

• Subtask 1: 0 / 15
• Subtask 2: 0 / 24
• Subtask 3: 0 / 17
• Subtask 4: 0 / 11
• Subtask 5: 0 / 11
• Subtask 6: 0 / 11
• Subtask 7: 0 / 11