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Submission #1090711

# Submission time Handle Problem Language Result Execution time Memory
1090711 2024-09-18T15:40:50 Z trandangquang None (JOI14_ho_t4) C++14
100 / 100
 97 ms 17032 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 1e5+5;

using ll = long long;

int n, m, x, h[N]; ll mxh[N];
vector <pair <int, int>> adj[N];

int main() {
    cin.tie(0)->sync_with_stdio(0);

    cin >> n >> m >> x;
    for(int i = 1; i <= n; ++i) cin >> h[i];
    for(int i = 1; i <= m; ++i) {
        int u, v, w; cin >> u >> v >> w;
        if(h[u] >= w) adj[u].emplace_back(v, w);
        if(h[v] >= w) adj[v].emplace_back(u, w);
    }

    fill(mxh+1, mxh+1+n, -1e18);
    mxh[1] = x;

    priority_queue <pair <ll, int>> pq;
    pq.push({x, 1});

    while(pq.size()) {
        pair <ll, int> tp = pq.top(); pq.pop();
        ll hu = tp.first; int u = tp.second;

        if(hu < mxh[u]) continue;

        for(pair <int, int> i : adj[u]) {
            int v = i.first, w = i.second;
            ll hv = min(hu-w, (ll)h[v]);
            if(hv > mxh[v]) {
                mxh[v] = hv;
                pq.push({hv, v});
            }
        }
    }

    if(mxh[n] == (ll)-1e18) cout << "-1\n";
    else cout << x + h[n] - 2*mxh[n] << '\n';
}

Subtask #1
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2908 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 2652 KB Output is correct
12 Correct 1 ms 2652 KB Output is correct
13 Correct 1 ms 2908 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2648 KB Output is correct
16 Correct 1 ms 2648 KB Output is correct
17 Correct 1 ms 2652 KB Output is correct
18 Correct 1 ms 2652 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Correct 1 ms 2652 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 81 ms 6936 KB Output is correct
2 Correct 75 ms 12496 KB Output is correct
3 Correct 65 ms 8400 KB Output is correct
4 Correct 94 ms 12744 KB Output is correct
5 Correct 70 ms 11900 KB Output is correct
6 Correct 4 ms 2648 KB Output is correct
7 Correct 56 ms 3964 KB Output is correct
8 Correct 89 ms 11240 KB Output is correct
9 Correct 59 ms 4692 KB Output is correct
10 Correct 38 ms 3920 KB Output is correct
11 Correct 11 ms 3928 KB Output is correct
12 Correct 54 ms 7376 KB Output is correct
13 Correct 21 ms 7004 KB Output is correct
14 Correct 56 ms 4420 KB Output is correct
15 Correct 3 ms 2908 KB Output is correct
16 Correct 72 ms 15804 KB Output is correct
17 Correct 8 ms 4188 KB Output is correct
18 Correct 10 ms 4444 KB Output is correct
19 Correct 22 ms 5976 KB Output is correct
20 Correct 11 ms 4700 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2652 KB Output is correct
2 Correct 1 ms 2908 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 1 ms 2652 KB Output is correct
5 Correct 1 ms 2652 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 1 ms 2652 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 2652 KB Output is correct
12 Correct 1 ms 2652 KB Output is correct
13 Correct 1 ms 2908 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2648 KB Output is correct
16 Correct 1 ms 2648 KB Output is correct
17 Correct 1 ms 2652 KB Output is correct
18 Correct 1 ms 2652 KB Output is correct
19 Correct 1 ms 2652 KB Output is correct
20 Correct 1 ms 2652 KB Output is correct
21 Correct 81 ms 6936 KB Output is correct
22 Correct 75 ms 12496 KB Output is correct
23 Correct 65 ms 8400 KB Output is correct
24 Correct 94 ms 12744 KB Output is correct
25 Correct 70 ms 11900 KB Output is correct
26 Correct 4 ms 2648 KB Output is correct
27 Correct 56 ms 3964 KB Output is correct
28 Correct 89 ms 11240 KB Output is correct
29 Correct 59 ms 4692 KB Output is correct
30 Correct 38 ms 3920 KB Output is correct
31 Correct 11 ms 3928 KB Output is correct
32 Correct 54 ms 7376 KB Output is correct
33 Correct 21 ms 7004 KB Output is correct
34 Correct 56 ms 4420 KB Output is correct
35 Correct 3 ms 2908 KB Output is correct
36 Correct 72 ms 15804 KB Output is correct
37 Correct 8 ms 4188 KB Output is correct
38 Correct 10 ms 4444 KB Output is correct
39 Correct 22 ms 5976 KB Output is correct
40 Correct 11 ms 4700 KB Output is correct
41 Correct 52 ms 9048 KB Output is correct
42 Correct 13 ms 5468 KB Output is correct
43 Correct 52 ms 7764 KB Output is correct
44 Correct 37 ms 9176 KB Output is correct
45 Correct 68 ms 15820 KB Output is correct
46 Correct 6 ms 4440 KB Output is correct
47 Correct 76 ms 16076 KB Output is correct
48 Correct 97 ms 16588 KB Output is correct
49 Correct 75 ms 14028 KB Output is correct
50 Correct 73 ms 17032 KB Output is correct
51 Correct 20 ms 5208 KB Output is correct
52 Correct 76 ms 13796 KB Output is correct
53 Correct 57 ms 9756 KB Output is correct
54 Correct 74 ms 10648 KB Output is correct
55 Correct 53 ms 9552 KB Output is correct
56 Correct 94 ms 16840 KB Output is correct
57 Correct 24 ms 6800 KB Output is correct
58 Correct 3 ms 3160 KB Output is correct
59 Correct 52 ms 9252 KB Output is correct
60 Correct 22 ms 6744 KB Output is correct