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답안 #386592

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
386592 2021-04-07T03:39:05 Z Kepha 악어의 지하 도시 (IOI11_crocodile) C++11
100 / 100
 617 ms 47144 KB 
// IOI 2011 crocodile
#include "crocodile.h"
#include <bits/stdc++.h>
#define MX 100000
using namespace std;

int N, M, K;
vector<pair<int, int> > edges[MX + 1];
int dist1[MX + 1], dist2[MX + 1];
bool visited[MX + 1];
priority_queue<pair<int, int> > q;

int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
	for (int i = 0; i < M; i++) {
        int a = R[i][0], b = R[i][1], c = L[i];
        edges[a].push_back({b, c});
        edges[b].push_back({a, c});
    }

	memset(dist1, 0x3f, sizeof(dist1));
    memset(dist2, 0x3f, sizeof(dist2));

    for (int i = 0; i < K; i++) {
        int x = P[i];
        dist1[x] = dist2[x] = 0;
        q.push({0, x});
    }

    while (q.size()) {
        int node = q.top().second;
        q.pop();

        if (visited[node]) continue;
        visited[node] = true;

        for (auto& edge : edges[node]) {
            if (dist2[node] + edge.second < dist1[edge.first]) {
                dist2[edge.first] = dist1[edge.first];
                dist1[edge.first] = dist2[node] + edge.second;
                q.push({-dist2[edge.first], edge.first});
            }
            else if (dist2[node] + edge.second < dist2[edge.first]) {
                dist2[edge.first] = dist2[node] + edge.second;
                q.push({-dist2[edge.first], edge.first});
            }
        }
    }

  	return dist2[0];
}

Subtask #1
46.0 / 46.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3436 KB Output is correct
2 Correct 3 ms 3436 KB Output is correct
3 Correct 3 ms 3436 KB Output is correct
4 Correct 3 ms 3564 KB Output is correct
5 Correct 3 ms 3564 KB Output is correct
6 Correct 4 ms 3564 KB Output is correct
7 Correct 3 ms 3564 KB Output is correct
8 Correct 4 ms 3564 KB Output is correct

Subtask #2
43.0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3436 KB Output is correct
2 Correct 3 ms 3436 KB Output is correct
3 Correct 3 ms 3436 KB Output is correct
4 Correct 3 ms 3564 KB Output is correct
5 Correct 3 ms 3564 KB Output is correct
6 Correct 4 ms 3564 KB Output is correct
7 Correct 3 ms 3564 KB Output is correct
8 Correct 4 ms 3564 KB Output is correct
9 Correct 5 ms 3692 KB Output is correct
10 Correct 3 ms 3436 KB Output is correct
11 Correct 4 ms 3564 KB Output is correct
12 Correct 6 ms 3820 KB Output is correct
13 Correct 6 ms 3948 KB Output is correct
14 Correct 3 ms 3564 KB Output is correct
15 Correct 3 ms 3564 KB Output is correct

Subtask #3
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3436 KB Output is correct
2 Correct 3 ms 3436 KB Output is correct
3 Correct 3 ms 3436 KB Output is correct
4 Correct 3 ms 3564 KB Output is correct
5 Correct 3 ms 3564 KB Output is correct
6 Correct 4 ms 3564 KB Output is correct
7 Correct 3 ms 3564 KB Output is correct
8 Correct 4 ms 3564 KB Output is correct
9 Correct 5 ms 3692 KB Output is correct
10 Correct 3 ms 3436 KB Output is correct
11 Correct 4 ms 3564 KB Output is correct
12 Correct 6 ms 3820 KB Output is correct
13 Correct 6 ms 3948 KB Output is correct
14 Correct 3 ms 3564 KB Output is correct
15 Correct 3 ms 3564 KB Output is correct
16 Correct 473 ms 42848 KB Output is correct
17 Correct 115 ms 11752 KB Output is correct
18 Correct 118 ms 13032 KB Output is correct
19 Correct 617 ms 47144 KB Output is correct
20 Correct 300 ms 37424 KB Output is correct
21 Correct 43 ms 7404 KB Output is correct
22 Correct 317 ms 32876 KB Output is correct