oj.uz

답안 #1069653

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1069653 2024-08-22T07:44:41 Z thangdz2k7 사이버랜드 (APIO23_cyberland) C++17
15 / 100
 249 ms 7808 KB 
#include <bits/stdc++.h>
#define db double

using namespace std;

const db inf = 1e12;
const db mid = 2.0;

db solve(int N, int M, int K, int H, vector <int> x, vector <int> y, vector <int> c, vector <int> arr){
    K = min(K, 100);

    vector <vector <int>> adj(N);
    for (int i = 0; i < M; ++ i) adj[x[i]].push_back(i), adj[y[i]].push_back(i);
    vector <db> dp(N, inf);
    dp[0] = 0.0; db ans = inf;

    for (int loops = 0; loops <= K; ++ loops){
        priority_queue <pair <db, int>> qu;
        for (int u = 0; u < N; ++ u){
            if (dp[u] == inf) continue;
            if (arr[u] == 0) dp[u] = 0.0;
            if (arr[u] == 2) dp[u] /= mid;
            qu.push({-dp[u], u});
        }

        while (qu.size()){
            auto [du, u] = qu.top();
            qu.pop(); du = -du;
            if (du != dp[u]) continue;
            for (int id : adj[u]){
                int v = x[id] ^ y[id] ^ u;
                if (dp[v] > dp[u] + c[id]){
                    dp[v] = dp[u] + c[id];
                    qu.push({-dp[v], v});
                }
            }
        }

        ans = min(ans, dp[H]);
    }

    if (ans == inf) return -1;
    return ans;
}
//
//int main(){
//    int N, M, K; cin >> N >> M >> K;
//    int H; cin >> H;
//    vector <int> arr(N); for (int i = 0; i < N; ++ i) cin >> arr[i];
//    vector <int> x(M), y(M), z(M); for (int i = 0; i < M; ++ i) cin >> x[i] >> y[i] >> z[i];
//    cout << fixed << setprecision(10) << solve(N, M, K, H, x, y, z, arr);
//}

Subtask #1
0.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 31 ms 600 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 68 ms 568 KB Correct.
2 Correct 83 ms 1576 KB Correct.
3 Correct 86 ms 1360 KB Correct.
4 Correct 84 ms 1620 KB Correct.
5 Correct 84 ms 1616 KB Correct.
6 Correct 190 ms 2632 KB Correct.
7 Correct 249 ms 2520 KB Correct.
8 Correct 119 ms 3564 KB Correct.
9 Correct 63 ms 1408 KB Correct.
10 Correct 62 ms 1360 KB Correct.

Subtask #3
0.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 93 ms 560 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 199 ms 7808 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #5
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 40 ms 608 KB Correct.
2 Correct 43 ms 1464 KB Correct.
3 Correct 46 ms 1368 KB Correct.
4 Correct 100 ms 2080 KB Correct.
5 Correct 35 ms 1112 KB Correct.

Subtask #6
0.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 58 ms 592 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #7
0.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 66 ms 576 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #8
0.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 140 ms 576 KB Wrong Answer.
2 Halted 0 ms 0 KB -