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Submission #49955

# Submission time Handle Problem Language Result Execution time Memory
49955 2018-06-05T09:32:42 Z fallingstar Fireworks (APIO16_fireworks) C++17
100 / 100
 556 ms 130320 KB 
#include <iostream>
#include <vector>
#include <queue>

#define long long long

using namespace std;

const int N = 3e5 + 2;

int n, m;
vector<pair<int, int> > g[N];
priority_queue<long> q[N];
pair<int, long> line[N];

void Merge(priority_queue<long> &a, priority_queue<long> &b)
{
    if (a.size() < b.size()) a.swap(b);
    while (!b.empty()) a.push(b.top()), b.pop();
}

void Dfs(int u, int cost)
{
    if (u > n)
    {
        q[u].push(cost);
        q[u].push(cost);
        line[u] = make_pair(1, -cost);
        return;
    }
    for (auto e: g[u])
    {
        int v = e.first, c = e.second;
        Dfs(v, c);
        line[u].first += line[v].first;
        line[u].second += line[v].second;
        Merge(q[u], q[v]);
    }
    while (line[u].first > 1)
    {
        line[u].second += q[u].top();
        q[u].pop();
        --line[u].first;
    }
    long p1 = q[u].top(); q[u].pop();
    long p0 = q[u].top(); q[u].pop();
    q[u].push(p1 + cost);
    q[u].push(p0 + cost);
    line[u].second -= cost;
}

int main()
{
    cin >> n >> m;
    for (int i = 2; i <= n + m; ++i)
    {
        int p, c; cin >> p >> c;
        g[p].push_back(make_pair(i, c));
    }
    Dfs(1, 0);
    cout << line[1].second + q[1].top();
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 16888 KB Output is correct
2 Correct 17 ms 16888 KB Output is correct
3 Correct 17 ms 16948 KB Output is correct
4 Correct 14 ms 16948 KB Output is correct
5 Correct 16 ms 16980 KB Output is correct
6 Correct 17 ms 16980 KB Output is correct
7 Correct 16 ms 16980 KB Output is correct
8 Correct 15 ms 16980 KB Output is correct
9 Correct 15 ms 16980 KB Output is correct
10 Correct 17 ms 17040 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 17040 KB Output is correct
2 Correct 15 ms 17040 KB Output is correct
3 Correct 15 ms 17040 KB Output is correct
4 Correct 16 ms 17040 KB Output is correct
5 Correct 18 ms 17040 KB Output is correct
6 Correct 15 ms 17040 KB Output is correct
7 Correct 16 ms 17076 KB Output is correct
8 Correct 15 ms 17076 KB Output is correct
9 Correct 16 ms 17076 KB Output is correct
10 Correct 17 ms 17076 KB Output is correct
11 Correct 16 ms 17076 KB Output is correct
12 Correct 19 ms 17076 KB Output is correct
13 Correct 18 ms 17076 KB Output is correct
14 Correct 17 ms 17076 KB Output is correct
15 Correct 16 ms 17076 KB Output is correct
16 Correct 16 ms 17076 KB Output is correct
17 Correct 15 ms 17076 KB Output is correct
18 Correct 15 ms 17076 KB Output is correct
19 Correct 17 ms 17076 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 16888 KB Output is correct
2 Correct 17 ms 16888 KB Output is correct
3 Correct 17 ms 16948 KB Output is correct
4 Correct 14 ms 16948 KB Output is correct
5 Correct 16 ms 16980 KB Output is correct
6 Correct 17 ms 16980 KB Output is correct
7 Correct 16 ms 16980 KB Output is correct
8 Correct 15 ms 16980 KB Output is correct
9 Correct 15 ms 16980 KB Output is correct
10 Correct 17 ms 17040 KB Output is correct
11 Correct 17 ms 17040 KB Output is correct
12 Correct 15 ms 17040 KB Output is correct
13 Correct 15 ms 17040 KB Output is correct
14 Correct 16 ms 17040 KB Output is correct
15 Correct 18 ms 17040 KB Output is correct
16 Correct 15 ms 17040 KB Output is correct
17 Correct 16 ms 17076 KB Output is correct
18 Correct 15 ms 17076 KB Output is correct
19 Correct 16 ms 17076 KB Output is correct
20 Correct 17 ms 17076 KB Output is correct
21 Correct 16 ms 17076 KB Output is correct
22 Correct 19 ms 17076 KB Output is correct
23 Correct 18 ms 17076 KB Output is correct
24 Correct 17 ms 17076 KB Output is correct
25 Correct 16 ms 17076 KB Output is correct
26 Correct 16 ms 17076 KB Output is correct
27 Correct 15 ms 17076 KB Output is correct
28 Correct 15 ms 17076 KB Output is correct
29 Correct 17 ms 17076 KB Output is correct
30 Correct 17 ms 17076 KB Output is correct
31 Correct 17 ms 17148 KB Output is correct
32 Correct 22 ms 17196 KB Output is correct
33 Correct 18 ms 17236 KB Output is correct
34 Correct 25 ms 17412 KB Output is correct
35 Correct 21 ms 17456 KB Output is correct
36 Correct 22 ms 17524 KB Output is correct
37 Correct 24 ms 17724 KB Output is correct
38 Correct 23 ms 17792 KB Output is correct
39 Correct 22 ms 17852 KB Output is correct
40 Correct 22 ms 18468 KB Output is correct
41 Correct 22 ms 18536 KB Output is correct
42 Correct 20 ms 18536 KB Output is correct
43 Correct 21 ms 18536 KB Output is correct
44 Correct 24 ms 18536 KB Output is correct
45 Correct 24 ms 18536 KB Output is correct
46 Correct 21 ms 18572 KB Output is correct
47 Correct 25 ms 18764 KB Output is correct
48 Correct 21 ms 18764 KB Output is correct
49 Correct 21 ms 18764 KB Output is correct
50 Correct 19 ms 18764 KB Output is correct
51 Correct 20 ms 18848 KB Output is correct
52 Correct 21 ms 18848 KB Output is correct
53 Correct 20 ms 18856 KB Output is correct
54 Correct 20 ms 18956 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 16888 KB Output is correct
2 Correct 17 ms 16888 KB Output is correct
3 Correct 17 ms 16948 KB Output is correct
4 Correct 14 ms 16948 KB Output is correct
5 Correct 16 ms 16980 KB Output is correct
6 Correct 17 ms 16980 KB Output is correct
7 Correct 16 ms 16980 KB Output is correct
8 Correct 15 ms 16980 KB Output is correct
9 Correct 15 ms 16980 KB Output is correct
10 Correct 17 ms 17040 KB Output is correct
11 Correct 17 ms 17040 KB Output is correct
12 Correct 15 ms 17040 KB Output is correct
13 Correct 15 ms 17040 KB Output is correct
14 Correct 16 ms 17040 KB Output is correct
15 Correct 18 ms 17040 KB Output is correct
16 Correct 15 ms 17040 KB Output is correct
17 Correct 16 ms 17076 KB Output is correct
18 Correct 15 ms 17076 KB Output is correct
19 Correct 16 ms 17076 KB Output is correct
20 Correct 17 ms 17076 KB Output is correct
21 Correct 16 ms 17076 KB Output is correct
22 Correct 19 ms 17076 KB Output is correct
23 Correct 18 ms 17076 KB Output is correct
24 Correct 17 ms 17076 KB Output is correct
25 Correct 16 ms 17076 KB Output is correct
26 Correct 16 ms 17076 KB Output is correct
27 Correct 15 ms 17076 KB Output is correct
28 Correct 15 ms 17076 KB Output is correct
29 Correct 17 ms 17076 KB Output is correct
30 Correct 17 ms 17076 KB Output is correct
31 Correct 17 ms 17148 KB Output is correct
32 Correct 22 ms 17196 KB Output is correct
33 Correct 18 ms 17236 KB Output is correct
34 Correct 25 ms 17412 KB Output is correct
35 Correct 21 ms 17456 KB Output is correct
36 Correct 22 ms 17524 KB Output is correct
37 Correct 24 ms 17724 KB Output is correct
38 Correct 23 ms 17792 KB Output is correct
39 Correct 22 ms 17852 KB Output is correct
40 Correct 22 ms 18468 KB Output is correct
41 Correct 22 ms 18536 KB Output is correct
42 Correct 20 ms 18536 KB Output is correct
43 Correct 21 ms 18536 KB Output is correct
44 Correct 24 ms 18536 KB Output is correct
45 Correct 24 ms 18536 KB Output is correct
46 Correct 21 ms 18572 KB Output is correct
47 Correct 25 ms 18764 KB Output is correct
48 Correct 21 ms 18764 KB Output is correct
49 Correct 21 ms 18764 KB Output is correct
50 Correct 19 ms 18764 KB Output is correct
51 Correct 20 ms 18848 KB Output is correct
52 Correct 21 ms 18848 KB Output is correct
53 Correct 20 ms 18856 KB Output is correct
54 Correct 20 ms 18956 KB Output is correct
55 Correct 30 ms 19620 KB Output is correct
56 Correct 94 ms 22652 KB Output is correct
57 Correct 146 ms 26156 KB Output is correct
58 Correct 204 ms 29516 KB Output is correct
59 Correct 251 ms 33848 KB Output is correct
60 Correct 393 ms 38940 KB Output is correct
61 Correct 453 ms 43976 KB Output is correct
62 Correct 430 ms 48796 KB Output is correct
63 Correct 556 ms 55584 KB Output is correct
64 Correct 469 ms 60828 KB Output is correct
65 Correct 399 ms 94744 KB Output is correct
66 Correct 326 ms 99488 KB Output is correct
67 Correct 357 ms 99488 KB Output is correct
68 Correct 446 ms 99488 KB Output is correct
69 Correct 482 ms 99488 KB Output is correct
70 Correct 515 ms 101112 KB Output is correct
71 Correct 487 ms 104852 KB Output is correct
72 Correct 476 ms 109256 KB Output is correct
73 Correct 461 ms 109680 KB Output is correct
74 Correct 386 ms 113880 KB Output is correct
75 Correct 390 ms 116472 KB Output is correct
76 Correct 346 ms 120292 KB Output is correct
77 Correct 362 ms 123400 KB Output is correct
78 Correct 358 ms 125852 KB Output is correct
79 Correct 375 ms 130320 KB Output is correct