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Submission #385302

# Submission time Handle Problem Language Result Execution time Memory
385302 2021-04-04T03:55:15 Z ngpin04 Crocodile's Underground City (IOI11_crocodile) C++14
100 / 100
 608 ms 47484 KB 
#include <bits/stdc++.h>
#include "crocodile.h"
//#include "crocodile.cpp"
//#include "grader.cpp"
#define fi first
#define se second
#define mp make_pair
using namespace std;
const int NN = 1e5 + 5;
const int oo = 1e9 + 1;

vector <pair <int, int>> adj[NN];

int dis[NN][3];
int n;

bool vis[NN];

int travel_plan(int n, int m, int r[][2], int l[], int k, int p[])
{
    for (int i = 0; i < m; i++) {
        int u = r[i][0];
        int v = r[i][1];
        int w = l[i];
        adj[u].push_back(mp(v, w));
        adj[v].push_back(mp(u, w));
    }
    for (int i = 0; i < n; i++)
    for (int j = 0; j < 3; j++)
        dis[i][j] = oo;

    priority_queue <pair <int, int>> heap;

    for (int i = 0; i < k; i++)
    for (int j = 0; j < 2; j++) {
        dis[p[i]][j] = 0;
        if (j == 1)
            heap.push(mp(0, p[i]));
    }
    while (heap.size()) {
        int u = heap.top().se;
        int cur = -heap.top().fi;
        heap.pop();
        if (vis[u] || dis[u][1] != cur)
            continue;
        vis[u] = true;
        for (pair <int, int> e : adj[u]) {
            int v = e.fi;
            int w = e.se;
            bool ok = false;
            dis[v][2] = cur + w;
            for (int i = 2; i >= 1; i--)
                if (dis[v][i] < dis[v][i - 1])
                    swap(dis[v][i], dis[v][i - 1]), ok = true;
            if (ok)
                heap.push(mp(-dis[v][1], v));
            //if (v == 0){
                //cerr << u << " " << v << " " << w << endl;
                //for (int i = 0; i < 3; i++)
                //    cerr << dis[0][i] << " ";
                //cerr << endl;
            //}
        }
    }
    return dis[0][1];
}

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2688 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Correct 2 ms 2668 KB Output is correct
4 Correct 3 ms 2796 KB Output is correct
5 Correct 3 ms 2796 KB Output is correct
6 Correct 3 ms 2796 KB Output is correct
7 Correct 3 ms 2796 KB Output is correct
8 Correct 4 ms 2796 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2688 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Correct 2 ms 2668 KB Output is correct
4 Correct 3 ms 2796 KB Output is correct
5 Correct 3 ms 2796 KB Output is correct
6 Correct 3 ms 2796 KB Output is correct
7 Correct 3 ms 2796 KB Output is correct
8 Correct 4 ms 2796 KB Output is correct
9 Correct 4 ms 2924 KB Output is correct
10 Correct 3 ms 2668 KB Output is correct
11 Correct 3 ms 2796 KB Output is correct
12 Correct 6 ms 3052 KB Output is correct
13 Correct 6 ms 3200 KB Output is correct
14 Correct 3 ms 2668 KB Output is correct
15 Correct 3 ms 2796 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2688 KB Output is correct
2 Correct 2 ms 2668 KB Output is correct
3 Correct 2 ms 2668 KB Output is correct
4 Correct 3 ms 2796 KB Output is correct
5 Correct 3 ms 2796 KB Output is correct
6 Correct 3 ms 2796 KB Output is correct
7 Correct 3 ms 2796 KB Output is correct
8 Correct 4 ms 2796 KB Output is correct
9 Correct 4 ms 2924 KB Output is correct
10 Correct 3 ms 2668 KB Output is correct
11 Correct 3 ms 2796 KB Output is correct
12 Correct 6 ms 3052 KB Output is correct
13 Correct 6 ms 3200 KB Output is correct
14 Correct 3 ms 2668 KB Output is correct
15 Correct 3 ms 2796 KB Output is correct
16 Correct 503 ms 42496 KB Output is correct
17 Correct 100 ms 12136 KB Output is correct
18 Correct 124 ms 13416 KB Output is correct
19 Correct 608 ms 47484 KB Output is correct
20 Correct 316 ms 36736 KB Output is correct
21 Correct 51 ms 6764 KB Output is correct
22 Correct 340 ms 32572 KB Output is correct