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Submission #244412

# Submission time Handle Problem Language Result Execution time Memory
244412 2020-07-04T01:16:37 Z neihcr7j Fireworks (APIO16_fireworks) C++14
100 / 100
 294 ms 62584 KB 
#include<bits/stdc++.h>

#define maxn 300005

using namespace std;
typedef long long ll;

int n, m;

vector < pair < ll, ll > > g[maxn];

struct Set{
  priority_queue < ll > q;
  ll sum, cnt;

  Set(ll _sum = 0, ll _cnt = 0) : sum(_sum), cnt(_cnt) {};

  void add(ll c) {
    ll a = q.top(); q.pop();
    ll b = q.top(); q.pop();

    a += c;
    b += c;

    q.push(a);
    q.push(b);

    sum -= c;
  }

  void shift(){
    while (cnt > 1) {
      ll ret = q.top(); q.pop();
      cnt --;
      sum += ret;
    }
  }
} tem[maxn];

Set* a[maxn];

Set* mix(Set* a, Set* b) {
  if ((a -> q).size() < (b -> q).size())
    swap(a, b);

  a -> cnt += b -> cnt;
  a -> sum += b -> sum;

  while (!(b -> q).empty()) {
    ll ret = (b -> q).top(); (b -> q).pop();

    (a -> q).push(ret);
  }

  return a;
}

void dfs(int u) {
  if (g[u].size() == 0) {
    (a[u] -> q).push(0);
    (a[u] -> q).push(0);
    a[u] -> cnt = 1;
  }

  for (auto i : g[u]) {
    int v = i.first;
    ll c = i.second;

    dfs(v);
    a[v] -> add(c);
    a[u] = mix(a[u], a[v]);
  }

  a[u] -> shift();
}

int main(){
  #define TASK "ABC"
 // freopen(TASK".inp", "r", stdin); freopen(TASK".out", "w", stdout);
  ios_base::sync_with_stdio(0);

  cin >> n >> m;

  for (int i = 2; i <= n + m; ++i) {
    int p, c;
    cin >> p >> c;
    g[p].push_back({i, c});
  }

  for (int i = 1; i <= n + m; ++i)
    a[i] = &tem[i];

  dfs(1);

  cout << (a[1] -> sum + (a[1] -> q).top());

  return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 21504 KB Output is correct
2 Correct 16 ms 21504 KB Output is correct
3 Correct 16 ms 21504 KB Output is correct
4 Correct 17 ms 21504 KB Output is correct
5 Correct 17 ms 21504 KB Output is correct
6 Correct 16 ms 21504 KB Output is correct
7 Correct 17 ms 21504 KB Output is correct
8 Correct 17 ms 21504 KB Output is correct
9 Correct 16 ms 21504 KB Output is correct
10 Correct 17 ms 21504 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 21504 KB Output is correct
2 Correct 16 ms 21504 KB Output is correct
3 Correct 17 ms 21504 KB Output is correct
4 Correct 17 ms 21504 KB Output is correct
5 Correct 18 ms 21504 KB Output is correct
6 Correct 17 ms 21504 KB Output is correct
7 Correct 17 ms 21504 KB Output is correct
8 Correct 17 ms 21504 KB Output is correct
9 Correct 17 ms 21504 KB Output is correct
10 Correct 16 ms 21504 KB Output is correct
11 Correct 16 ms 21504 KB Output is correct
12 Correct 17 ms 21504 KB Output is correct
13 Correct 19 ms 21504 KB Output is correct
14 Correct 17 ms 21504 KB Output is correct
15 Correct 16 ms 21504 KB Output is correct
16 Correct 18 ms 21632 KB Output is correct
17 Correct 18 ms 21504 KB Output is correct
18 Correct 17 ms 21504 KB Output is correct
19 Correct 18 ms 21504 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 21504 KB Output is correct
2 Correct 16 ms 21504 KB Output is correct
3 Correct 16 ms 21504 KB Output is correct
4 Correct 17 ms 21504 KB Output is correct
5 Correct 17 ms 21504 KB Output is correct
6 Correct 16 ms 21504 KB Output is correct
7 Correct 17 ms 21504 KB Output is correct
8 Correct 17 ms 21504 KB Output is correct
9 Correct 16 ms 21504 KB Output is correct
10 Correct 17 ms 21504 KB Output is correct
11 Correct 16 ms 21504 KB Output is correct
12 Correct 16 ms 21504 KB Output is correct
13 Correct 17 ms 21504 KB Output is correct
14 Correct 17 ms 21504 KB Output is correct
15 Correct 18 ms 21504 KB Output is correct
16 Correct 17 ms 21504 KB Output is correct
17 Correct 17 ms 21504 KB Output is correct
18 Correct 17 ms 21504 KB Output is correct
19 Correct 17 ms 21504 KB Output is correct
20 Correct 16 ms 21504 KB Output is correct
21 Correct 16 ms 21504 KB Output is correct
22 Correct 17 ms 21504 KB Output is correct
23 Correct 19 ms 21504 KB Output is correct
24 Correct 17 ms 21504 KB Output is correct
25 Correct 16 ms 21504 KB Output is correct
26 Correct 18 ms 21632 KB Output is correct
27 Correct 18 ms 21504 KB Output is correct
28 Correct 17 ms 21504 KB Output is correct
29 Correct 18 ms 21504 KB Output is correct
30 Correct 16 ms 21504 KB Output is correct
31 Correct 17 ms 21504 KB Output is correct
32 Correct 17 ms 21632 KB Output is correct
33 Correct 18 ms 21632 KB Output is correct
34 Correct 18 ms 21632 KB Output is correct
35 Correct 18 ms 21760 KB Output is correct
36 Correct 21 ms 21760 KB Output is correct
37 Correct 19 ms 21888 KB Output is correct
38 Correct 19 ms 21888 KB Output is correct
39 Correct 19 ms 21888 KB Output is correct
40 Correct 20 ms 22272 KB Output is correct
41 Correct 19 ms 22144 KB Output is correct
42 Correct 18 ms 21760 KB Output is correct
43 Correct 19 ms 22016 KB Output is correct
44 Correct 20 ms 22016 KB Output is correct
45 Correct 19 ms 22016 KB Output is correct
46 Correct 20 ms 22016 KB Output is correct
47 Correct 24 ms 22016 KB Output is correct
48 Correct 24 ms 21888 KB Output is correct
49 Correct 22 ms 21888 KB Output is correct
50 Correct 21 ms 21888 KB Output is correct
51 Correct 19 ms 21760 KB Output is correct
52 Correct 20 ms 21888 KB Output is correct
53 Correct 20 ms 22016 KB Output is correct
54 Correct 22 ms 21888 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 21504 KB Output is correct
2 Correct 16 ms 21504 KB Output is correct
3 Correct 16 ms 21504 KB Output is correct
4 Correct 17 ms 21504 KB Output is correct
5 Correct 17 ms 21504 KB Output is correct
6 Correct 16 ms 21504 KB Output is correct
7 Correct 17 ms 21504 KB Output is correct
8 Correct 17 ms 21504 KB Output is correct
9 Correct 16 ms 21504 KB Output is correct
10 Correct 17 ms 21504 KB Output is correct
11 Correct 16 ms 21504 KB Output is correct
12 Correct 16 ms 21504 KB Output is correct
13 Correct 17 ms 21504 KB Output is correct
14 Correct 17 ms 21504 KB Output is correct
15 Correct 18 ms 21504 KB Output is correct
16 Correct 17 ms 21504 KB Output is correct
17 Correct 17 ms 21504 KB Output is correct
18 Correct 17 ms 21504 KB Output is correct
19 Correct 17 ms 21504 KB Output is correct
20 Correct 16 ms 21504 KB Output is correct
21 Correct 16 ms 21504 KB Output is correct
22 Correct 17 ms 21504 KB Output is correct
23 Correct 19 ms 21504 KB Output is correct
24 Correct 17 ms 21504 KB Output is correct
25 Correct 16 ms 21504 KB Output is correct
26 Correct 18 ms 21632 KB Output is correct
27 Correct 18 ms 21504 KB Output is correct
28 Correct 17 ms 21504 KB Output is correct
29 Correct 18 ms 21504 KB Output is correct
30 Correct 16 ms 21504 KB Output is correct
31 Correct 17 ms 21504 KB Output is correct
32 Correct 17 ms 21632 KB Output is correct
33 Correct 18 ms 21632 KB Output is correct
34 Correct 18 ms 21632 KB Output is correct
35 Correct 18 ms 21760 KB Output is correct
36 Correct 21 ms 21760 KB Output is correct
37 Correct 19 ms 21888 KB Output is correct
38 Correct 19 ms 21888 KB Output is correct
39 Correct 19 ms 21888 KB Output is correct
40 Correct 20 ms 22272 KB Output is correct
41 Correct 19 ms 22144 KB Output is correct
42 Correct 18 ms 21760 KB Output is correct
43 Correct 19 ms 22016 KB Output is correct
44 Correct 20 ms 22016 KB Output is correct
45 Correct 19 ms 22016 KB Output is correct
46 Correct 20 ms 22016 KB Output is correct
47 Correct 24 ms 22016 KB Output is correct
48 Correct 24 ms 21888 KB Output is correct
49 Correct 22 ms 21888 KB Output is correct
50 Correct 21 ms 21888 KB Output is correct
51 Correct 19 ms 21760 KB Output is correct
52 Correct 20 ms 21888 KB Output is correct
53 Correct 20 ms 22016 KB Output is correct
54 Correct 22 ms 21888 KB Output is correct
55 Correct 27 ms 22528 KB Output is correct
56 Correct 51 ms 25336 KB Output is correct
57 Correct 83 ms 27636 KB Output is correct
58 Correct 107 ms 29168 KB Output is correct
59 Correct 141 ms 31344 KB Output is correct
60 Correct 192 ms 33520 KB Output is correct
61 Correct 202 ms 35316 KB Output is correct
62 Correct 228 ms 36592 KB Output is correct
63 Correct 282 ms 39148 KB Output is correct
64 Correct 294 ms 39788 KB Output is correct
65 Correct 141 ms 62456 KB Output is correct
66 Correct 147 ms 62584 KB Output is correct
67 Correct 160 ms 34296 KB Output is correct
68 Correct 193 ms 52204 KB Output is correct
69 Correct 236 ms 50284 KB Output is correct
70 Correct 237 ms 50284 KB Output is correct
71 Correct 241 ms 52580 KB Output is correct
72 Correct 239 ms 52964 KB Output is correct
73 Correct 200 ms 48612 KB Output is correct
74 Correct 219 ms 48736 KB Output is correct
75 Correct 203 ms 47204 KB Output is correct
76 Correct 203 ms 47204 KB Output is correct
77 Correct 216 ms 46372 KB Output is correct
78 Correct 208 ms 44384 KB Output is correct
79 Correct 198 ms 46600 KB Output is correct