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Submission #558626

# Submission time Handle Problem Language Result Execution time Memory
558626 2022-05-07T16:23:53 Z Alexandruabcde Fireworks (APIO16_fireworks) C++14
55 / 100
 2000 ms 95588 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long LL;
constexpr int NMAX = 3e5 + 5;

struct SlopeTrick {
    LL a, b;
    priority_queue <LL> H;

    SlopeTrick () {
        a = 0;
        b = 0;
    }

    SlopeTrick operator += (SlopeTrick r) {
        a += r.a;
        b += r.b;

        while (!r.H.empty()) {
            H.push(r.H.top());
            r.H.pop();
        }

        return *this;
    }
};

int N, M;
int Dad[NMAX];
LL Cost[NMAX];
vector <int> G[NMAX];

void Read () {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    cin >> N >> M;
    for (int i = 2; i <= N + M; ++ i ) {
        cin >> Dad[i] >> Cost[i];

        G[Dad[i]].push_back(i);
    }
}

void Solve (int Node, SlopeTrick &ans) {
    while (ans.a > 1) {
        LL x = ans.H.top();
        ans.H.pop();
        -- ans.a;

        ans.b += x;
    }

    LL slope_1 = ans.H.top();
    ans.H.pop();
    LL slope_0 = ans.H.top();
    ans.H.pop();

    ans.H.push(slope_0 + Cost[Node]);
    ans.H.push(slope_1 + Cost[Node]);
    ans.b -= Cost[Node];
}

void Dfs (int Node, SlopeTrick &ans) {
    bool leaf = true;
    for (auto it : G[Node]) {
        SlopeTrick aux;

        leaf = false;
        Dfs(it, aux);

        if (ans.H.size() < aux.H.size())
            swap(ans, aux);
        ans += aux;
    }

    if (leaf) {
        ans.a = 1;
        ans.b = -Cost[Node];
        ans.H.push(Cost[Node]);
        ans.H.push(Cost[Node]);

        return;
    }

    if (Node == 1) return;

    Solve(Node, ans);
}

int main () {
    Read();

    SlopeTrick ans;

    Dfs(1, ans);

    while (ans.a > 0) {
        LL x = ans.H.top();
        ans.H.pop();

        ans.b += x;
        -- ans.a;
    }

    cout << ans.b << '\n';

    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7360 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 4 ms 7380 KB Output is correct
6 Correct 5 ms 7372 KB Output is correct
7 Correct 4 ms 7376 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7372 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7300 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7372 KB Output is correct
5 Correct 5 ms 7376 KB Output is correct
6 Correct 5 ms 7380 KB Output is correct
7 Correct 4 ms 7376 KB Output is correct
8 Correct 5 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7380 KB Output is correct
11 Correct 4 ms 7380 KB Output is correct
12 Correct 4 ms 7308 KB Output is correct
13 Correct 4 ms 7376 KB Output is correct
14 Correct 4 ms 7380 KB Output is correct
15 Correct 4 ms 7376 KB Output is correct
16 Correct 4 ms 7376 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 4 ms 7380 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7360 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 4 ms 7380 KB Output is correct
6 Correct 5 ms 7372 KB Output is correct
7 Correct 4 ms 7376 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7372 KB Output is correct
11 Correct 4 ms 7380 KB Output is correct
12 Correct 4 ms 7300 KB Output is correct
13 Correct 4 ms 7380 KB Output is correct
14 Correct 4 ms 7372 KB Output is correct
15 Correct 5 ms 7376 KB Output is correct
16 Correct 5 ms 7380 KB Output is correct
17 Correct 4 ms 7376 KB Output is correct
18 Correct 5 ms 7380 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 4 ms 7380 KB Output is correct
22 Correct 4 ms 7308 KB Output is correct
23 Correct 4 ms 7376 KB Output is correct
24 Correct 4 ms 7380 KB Output is correct
25 Correct 4 ms 7376 KB Output is correct
26 Correct 4 ms 7376 KB Output is correct
27 Correct 4 ms 7380 KB Output is correct
28 Correct 4 ms 7380 KB Output is correct
29 Correct 4 ms 7380 KB Output is correct
30 Correct 4 ms 7380 KB Output is correct
31 Correct 4 ms 7380 KB Output is correct
32 Correct 4 ms 7508 KB Output is correct
33 Correct 5 ms 7508 KB Output is correct
34 Correct 6 ms 7508 KB Output is correct
35 Correct 5 ms 7636 KB Output is correct
36 Correct 6 ms 7636 KB Output is correct
37 Correct 6 ms 7636 KB Output is correct
38 Correct 6 ms 7636 KB Output is correct
39 Correct 6 ms 7644 KB Output is correct
40 Correct 6 ms 8788 KB Output is correct
41 Correct 6 ms 8796 KB Output is correct
42 Correct 6 ms 7640 KB Output is correct
43 Correct 8 ms 8156 KB Output is correct
44 Correct 9 ms 8056 KB Output is correct
45 Correct 8 ms 8024 KB Output is correct
46 Correct 7 ms 7636 KB Output is correct
47 Correct 7 ms 7636 KB Output is correct
48 Correct 7 ms 7644 KB Output is correct
49 Correct 8 ms 7636 KB Output is correct
50 Correct 10 ms 7648 KB Output is correct
51 Correct 11 ms 7640 KB Output is correct
52 Correct 8 ms 7636 KB Output is correct
53 Correct 8 ms 7692 KB Output is correct
54 Correct 11 ms 7764 KB Output is correct

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7360 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 4 ms 7380 KB Output is correct
6 Correct 5 ms 7372 KB Output is correct
7 Correct 4 ms 7376 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7372 KB Output is correct
11 Correct 4 ms 7380 KB Output is correct
12 Correct 4 ms 7300 KB Output is correct
13 Correct 4 ms 7380 KB Output is correct
14 Correct 4 ms 7372 KB Output is correct
15 Correct 5 ms 7376 KB Output is correct
16 Correct 5 ms 7380 KB Output is correct
17 Correct 4 ms 7376 KB Output is correct
18 Correct 5 ms 7380 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 4 ms 7380 KB Output is correct
22 Correct 4 ms 7308 KB Output is correct
23 Correct 4 ms 7376 KB Output is correct
24 Correct 4 ms 7380 KB Output is correct
25 Correct 4 ms 7376 KB Output is correct
26 Correct 4 ms 7376 KB Output is correct
27 Correct 4 ms 7380 KB Output is correct
28 Correct 4 ms 7380 KB Output is correct
29 Correct 4 ms 7380 KB Output is correct
30 Correct 4 ms 7380 KB Output is correct
31 Correct 4 ms 7380 KB Output is correct
32 Correct 4 ms 7508 KB Output is correct
33 Correct 5 ms 7508 KB Output is correct
34 Correct 6 ms 7508 KB Output is correct
35 Correct 5 ms 7636 KB Output is correct
36 Correct 6 ms 7636 KB Output is correct
37 Correct 6 ms 7636 KB Output is correct
38 Correct 6 ms 7636 KB Output is correct
39 Correct 6 ms 7644 KB Output is correct
40 Correct 6 ms 8788 KB Output is correct
41 Correct 6 ms 8796 KB Output is correct
42 Correct 6 ms 7640 KB Output is correct
43 Correct 8 ms 8156 KB Output is correct
44 Correct 9 ms 8056 KB Output is correct
45 Correct 8 ms 8024 KB Output is correct
46 Correct 7 ms 7636 KB Output is correct
47 Correct 7 ms 7636 KB Output is correct
48 Correct 7 ms 7644 KB Output is correct
49 Correct 8 ms 7636 KB Output is correct
50 Correct 10 ms 7648 KB Output is correct
51 Correct 11 ms 7640 KB Output is correct
52 Correct 8 ms 7636 KB Output is correct
53 Correct 8 ms 7692 KB Output is correct
54 Correct 11 ms 7764 KB Output is correct
55 Correct 10 ms 8148 KB Output is correct
56 Correct 32 ms 10172 KB Output is correct
57 Correct 52 ms 12128 KB Output is correct
58 Correct 75 ms 13360 KB Output is correct
59 Correct 103 ms 15344 KB Output is correct
60 Correct 129 ms 17376 KB Output is correct
61 Correct 160 ms 18696 KB Output is correct
62 Correct 164 ms 19888 KB Output is correct
63 Correct 199 ms 22536 KB Output is correct
64 Correct 234 ms 23308 KB Output is correct
65 Correct 126 ms 95588 KB Output is correct
66 Correct 124 ms 95560 KB Output is correct
67 Correct 106 ms 25256 KB Output is correct
68 Execution timed out 2082 ms 57444 KB Time limit exceeded
69 Halted 0 ms 0 KB -