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Submission #155871

# Submission time Handle Problem Language Result Execution time Memory
155871 2019-10-01T10:26:57 Z Alexa2001 Fireworks (APIO16_fireworks) C++17
100 / 100
 308 ms 52840 KB 
#include <bits/stdc++.h>

using namespace std;

const int Nmax = 3e5 + 5;
typedef long long ll;


ll A[Nmax], B[Nmax];
int up[Nmax], w[Nmax];
priority_queue<ll> heap[Nmax];
vector<int> edge[Nmax];

int n, m, N;

void combine(int node, int son)
{
    A[node] += A[son]; B[node] += B[son];

    while(heap[son].size())
    {
        heap[node].push(heap[son].top());
        heap[son].pop();
    }
}

void merge_sons(int node)
{
    int xson = 0;

    for(auto son : edge[node])
    {
        if(w[son] > w[xson]) xson = son;
        w[node] += w[son];
    }

    swap(heap[node], heap[xson]);
    A[node] = A[xson]; B[node] = B[xson];

    for(auto son : edge[node])
        if(son != xson)
            combine(node, son);
}

int main()
{
  //  freopen("input", "r", stdin);
    cin.sync_with_stdio(false); cin.tie(0);

    cin >> n >> m;
    N = n + m;

    int i, node;
    for(i=2; i<=N; ++i)
    {
        int parent;
        cin >> parent >> up[i];
        edge[parent].push_back(i);
    }

    for(node = N; node; --node)
    {
        w[node] = 1;

        if(edge[node].empty())
        {
            heap[node].push(up[node]);
            heap[node].push(up[node]);
            A[node] = 1; B[node] = -up[node];

            continue;
        }

        merge_sons(node);

        while(A[node] > 1)
        {
            ll last_change = heap[node].top();
            heap[node].pop();

            A[node]--; B[node] += last_change;
        }

        ll change0, change1;
        change1 = heap[node].top(); heap[node].pop();
        change0 = heap[node].top(); heap[node].pop();

        heap[node].push(change1 + up[node]);
        heap[node].push(change0 + up[node]);

        B[node] -= up[node];
    }

    cout << A[1] * heap[1].top() + B[1] << '\n';

    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 16760 KB Output is correct
2 Correct 20 ms 16760 KB Output is correct
3 Correct 17 ms 16760 KB Output is correct
4 Correct 17 ms 16888 KB Output is correct
5 Correct 17 ms 16760 KB Output is correct
6 Correct 16 ms 16760 KB Output is correct
7 Correct 17 ms 16760 KB Output is correct
8 Correct 20 ms 16760 KB Output is correct
9 Correct 21 ms 16764 KB Output is correct
10 Correct 16 ms 16760 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 16724 KB Output is correct
2 Correct 17 ms 16732 KB Output is correct
3 Correct 17 ms 16752 KB Output is correct
4 Correct 18 ms 16760 KB Output is correct
5 Correct 17 ms 16760 KB Output is correct
6 Correct 17 ms 16888 KB Output is correct
7 Correct 17 ms 16764 KB Output is correct
8 Correct 17 ms 16760 KB Output is correct
9 Correct 19 ms 16892 KB Output is correct
10 Correct 16 ms 16760 KB Output is correct
11 Correct 17 ms 16760 KB Output is correct
12 Correct 20 ms 16760 KB Output is correct
13 Correct 21 ms 16760 KB Output is correct
14 Correct 18 ms 16760 KB Output is correct
15 Correct 17 ms 16888 KB Output is correct
16 Correct 17 ms 16888 KB Output is correct
17 Correct 17 ms 16760 KB Output is correct
18 Correct 17 ms 16888 KB Output is correct
19 Correct 17 ms 16888 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 16760 KB Output is correct
2 Correct 20 ms 16760 KB Output is correct
3 Correct 17 ms 16760 KB Output is correct
4 Correct 17 ms 16888 KB Output is correct
5 Correct 17 ms 16760 KB Output is correct
6 Correct 16 ms 16760 KB Output is correct
7 Correct 17 ms 16760 KB Output is correct
8 Correct 20 ms 16760 KB Output is correct
9 Correct 21 ms 16764 KB Output is correct
10 Correct 16 ms 16760 KB Output is correct
11 Correct 20 ms 16724 KB Output is correct
12 Correct 17 ms 16732 KB Output is correct
13 Correct 17 ms 16752 KB Output is correct
14 Correct 18 ms 16760 KB Output is correct
15 Correct 17 ms 16760 KB Output is correct
16 Correct 17 ms 16888 KB Output is correct
17 Correct 17 ms 16764 KB Output is correct
18 Correct 17 ms 16760 KB Output is correct
19 Correct 19 ms 16892 KB Output is correct
20 Correct 16 ms 16760 KB Output is correct
21 Correct 17 ms 16760 KB Output is correct
22 Correct 20 ms 16760 KB Output is correct
23 Correct 21 ms 16760 KB Output is correct
24 Correct 18 ms 16760 KB Output is correct
25 Correct 17 ms 16888 KB Output is correct
26 Correct 17 ms 16888 KB Output is correct
27 Correct 17 ms 16760 KB Output is correct
28 Correct 17 ms 16888 KB Output is correct
29 Correct 17 ms 16888 KB Output is correct
30 Correct 17 ms 16864 KB Output is correct
31 Correct 17 ms 17016 KB Output is correct
32 Correct 18 ms 17016 KB Output is correct
33 Correct 18 ms 17016 KB Output is correct
34 Correct 18 ms 17144 KB Output is correct
35 Correct 19 ms 17144 KB Output is correct
36 Correct 20 ms 17144 KB Output is correct
37 Correct 20 ms 17276 KB Output is correct
38 Correct 20 ms 17272 KB Output is correct
39 Correct 21 ms 17272 KB Output is correct
40 Correct 19 ms 17144 KB Output is correct
41 Correct 18 ms 17144 KB Output is correct
42 Correct 19 ms 17144 KB Output is correct
43 Correct 20 ms 17144 KB Output is correct
44 Correct 23 ms 17272 KB Output is correct
45 Correct 23 ms 17144 KB Output is correct
46 Correct 20 ms 17528 KB Output is correct
47 Correct 21 ms 17400 KB Output is correct
48 Correct 19 ms 17272 KB Output is correct
49 Correct 20 ms 17400 KB Output is correct
50 Correct 19 ms 17144 KB Output is correct
51 Correct 19 ms 17272 KB Output is correct
52 Correct 20 ms 17272 KB Output is correct
53 Correct 20 ms 17272 KB Output is correct
54 Correct 20 ms 17344 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 16760 KB Output is correct
2 Correct 20 ms 16760 KB Output is correct
3 Correct 17 ms 16760 KB Output is correct
4 Correct 17 ms 16888 KB Output is correct
5 Correct 17 ms 16760 KB Output is correct
6 Correct 16 ms 16760 KB Output is correct
7 Correct 17 ms 16760 KB Output is correct
8 Correct 20 ms 16760 KB Output is correct
9 Correct 21 ms 16764 KB Output is correct
10 Correct 16 ms 16760 KB Output is correct
11 Correct 20 ms 16724 KB Output is correct
12 Correct 17 ms 16732 KB Output is correct
13 Correct 17 ms 16752 KB Output is correct
14 Correct 18 ms 16760 KB Output is correct
15 Correct 17 ms 16760 KB Output is correct
16 Correct 17 ms 16888 KB Output is correct
17 Correct 17 ms 16764 KB Output is correct
18 Correct 17 ms 16760 KB Output is correct
19 Correct 19 ms 16892 KB Output is correct
20 Correct 16 ms 16760 KB Output is correct
21 Correct 17 ms 16760 KB Output is correct
22 Correct 20 ms 16760 KB Output is correct
23 Correct 21 ms 16760 KB Output is correct
24 Correct 18 ms 16760 KB Output is correct
25 Correct 17 ms 16888 KB Output is correct
26 Correct 17 ms 16888 KB Output is correct
27 Correct 17 ms 16760 KB Output is correct
28 Correct 17 ms 16888 KB Output is correct
29 Correct 17 ms 16888 KB Output is correct
30 Correct 17 ms 16864 KB Output is correct
31 Correct 17 ms 17016 KB Output is correct
32 Correct 18 ms 17016 KB Output is correct
33 Correct 18 ms 17016 KB Output is correct
34 Correct 18 ms 17144 KB Output is correct
35 Correct 19 ms 17144 KB Output is correct
36 Correct 20 ms 17144 KB Output is correct
37 Correct 20 ms 17276 KB Output is correct
38 Correct 20 ms 17272 KB Output is correct
39 Correct 21 ms 17272 KB Output is correct
40 Correct 19 ms 17144 KB Output is correct
41 Correct 18 ms 17144 KB Output is correct
42 Correct 19 ms 17144 KB Output is correct
43 Correct 20 ms 17144 KB Output is correct
44 Correct 23 ms 17272 KB Output is correct
45 Correct 23 ms 17144 KB Output is correct
46 Correct 20 ms 17528 KB Output is correct
47 Correct 21 ms 17400 KB Output is correct
48 Correct 19 ms 17272 KB Output is correct
49 Correct 20 ms 17400 KB Output is correct
50 Correct 19 ms 17144 KB Output is correct
51 Correct 19 ms 17272 KB Output is correct
52 Correct 20 ms 17272 KB Output is correct
53 Correct 20 ms 17272 KB Output is correct
54 Correct 20 ms 17344 KB Output is correct
55 Correct 29 ms 18040 KB Output is correct
56 Correct 50 ms 21496 KB Output is correct
57 Correct 78 ms 24632 KB Output is correct
58 Correct 101 ms 26868 KB Output is correct
59 Correct 133 ms 30196 KB Output is correct
60 Correct 167 ms 33556 KB Output is correct
61 Correct 193 ms 36284 KB Output is correct
62 Correct 251 ms 37868 KB Output is correct
63 Correct 308 ms 42084 KB Output is correct
64 Correct 279 ms 43196 KB Output is correct
65 Correct 136 ms 38012 KB Output is correct
66 Correct 129 ms 38136 KB Output is correct
67 Correct 132 ms 38048 KB Output is correct
68 Correct 191 ms 39864 KB Output is correct
69 Correct 229 ms 39920 KB Output is correct
70 Correct 228 ms 39988 KB Output is correct
71 Correct 244 ms 52664 KB Output is correct
72 Correct 237 ms 52840 KB Output is correct
73 Correct 208 ms 49124 KB Output is correct
74 Correct 213 ms 49252 KB Output is correct
75 Correct 226 ms 48396 KB Output is correct
76 Correct 210 ms 48172 KB Output is correct
77 Correct 214 ms 47356 KB Output is correct
78 Correct 218 ms 46824 KB Output is correct
79 Correct 202 ms 46176 KB Output is correct