oj.uz

답안 #751508

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
751508 2023-05-31T16:35:36 Z somethingnew 사이버랜드 (APIO23_cyberland) C++17
0 / 100
 3000 ms 201556 KB 
#include "cyberland.h"
#include "queue"

#include <vector>
using namespace std;
double eps = 1e-9;
vector<vector<pair<int, double>>> g;
vector<int> slv1(vector<int> arr, int n, int k, int h) {
    priority_queue<pair<double, int>, vector<pair<double, int>>, greater<>> que;
    for (int i = 0; i < k; ++i) {
        que.push({0, i});
    }
    vector<double> res(g.size(), 1e18);
    while (!que.empty()) {
        auto [prc, v] = que.top();
        //cout << prc << ' ' << v << '\n';
        que.pop();
        if (v == h)
            continue;
        if (prc + eps > res[v])
            continue;
        res[v] = prc;
        for (auto i : g[v])
            que.push({prc + i.second, i.first});
    }
    vector<int> reska;
    for (int i = 0; i < g.size(); ++i) {
        if (res[i] < 1e17 and arr[i % n] == 0)
            reska.push_back(i);
    }
    return reska;
}
double slv2(int n, int k, int h, vector<int> tork) {
    priority_queue<pair<double, int>, vector<pair<double, int>>, greater<>> que;
    for (auto i : tork) {
        que.push({0, i});
    }
    vector<double> res(g.size(), 1e18);
    while (!que.empty()) {
        auto [prc, v] = que.top();
        que.pop();
        if (prc > res[v])
            continue;
        res[v] = prc;
        for (auto i : g[v])
            que.push({prc + i.second, i.first});
    }
    return res[n * k - n + h];
}
double solve(int N, int M, int K, int H, vector<int> x, vector<int> y, vector<int> c, vector<int> arr) {
    K = min(K+1, 31);
    int kn = K * N;
    //cout << kn << '\n';
    g.assign(kn, {});
    double dv = 1;
    for (int i = 0; i < M; ++i) {
        for (int j = K - 1; j >= 0; --j) {
            int a = x[i], b = y[i], tm = c[i];
            int isa = arr[a];
            a += j * N;
            b += j * N;
            g[a].push_back({b, tm / dv});
            if (isa == 2) {
                if (j + 1 != K)
                    g[a].push_back({b + N, tm * 2 / dv});
            }
            a = y[i], b = x[i], tm = c[i];
            isa = arr[a];
            a += j * N;
            b += j * N;
            g[a].push_back({b, tm / dv});
            if (isa == 2) {
                if (j + 1 != K)
                    g[a].push_back({b + N, tm * 2 / dv});
            }
        }
    }
    arr[0] = 0;
    vector<int> tor2 = slv1(arr, N, K, H);
    double res = slv2(N, K, H, tor2);
    if (res > 1e17)
        return -1;
    return res;
}

Compilation message

cyberland.cpp: In function 'std::vector<int> slv1(std::vector<int>, int, int, int)':
cyberland.cpp:27:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<std::pair<int, double> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for (int i = 0; i < g.size(); ++i) {
      |                     ~~^~~~~~~~~~

Subtask #1
0.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 140 ms 452 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 172 ms 4516 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #3
0.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 219 ms 4488 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3060 ms 201556 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 170 ms 5048 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #6
0.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 187 ms 5144 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #7
0.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2363 ms 18232 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #8
0.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2302 ms 18236 KB Wrong Answer.
2 Halted 0 ms 0 KB -