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Submission #470555

# Submission time Handle Problem Language Result Execution time Memory
470555 2021-09-04T08:57:33 Z BThero Fireworks (APIO16_fireworks) C++17
100 / 100
 415 ms 52984 KB 
#include <bits/stdc++.h>

#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()

using namespace std;

typedef long long ll;

const int MAXN = (int)3e5 + 5;

ll h0[MAXN], a0[MAXN];
priority_queue<ll> S[MAXN];
int par[MAXN], edge_len[MAXN];
vector<int> adj[MAXN];
int n, m;

int main() {
    cin >> n >> m;

    for (int i = 2; i <= n + m; i++) {
        cin >> par[i] >> edge_len[i];
        adj[par[i]].push_back(i);
    }

    for (int v = n + m; v > n; v--) {
        h0[v] = edge_len[v];
        a0[v] = -1;
        S[v].push(edge_len[v]);
        S[v].push(edge_len[v]);
    }

    for (int v = n; v > 0; v--) {
        for (int to : adj[v]) {
            h0[v] += h0[to];
            a0[v] += a0[to];

            if (sz(S[to]) > sz(S[v])) {
                S[v].swap(S[to]);
            }

            while (!S[to].empty()) {
                S[v].push(S[to].top());
                S[to].pop();
            }
        }

        while (!S[v].empty() && a0[v] + sz(S[v]) > 1) {
            S[v].pop();
        }

        h0[v] += edge_len[v];
        ll P = S[v].top();
        S[v].pop();
        ll Q = S[v].top();
        S[v].pop();
        S[v].push(Q + edge_len[v]);
        S[v].push(P + edge_len[v]);
    }

    vector<ll> slopes;

    while (!S[1].empty()) {
        slopes.push_back(S[1].top());
        S[1].pop();
    }

    reverse(all(slopes));
    ll val = h0[1], slope = a0[1], pos = 0;

    for (ll pt : slopes) {
        val += (pt - pos) * slope;
        pos = pt;
        slope++;
        if (slope == 0) break;
    }

    cout << val << endl;
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 16720 KB Output is correct
2 Correct 9 ms 16716 KB Output is correct
3 Correct 9 ms 16716 KB Output is correct
4 Correct 9 ms 16716 KB Output is correct
5 Correct 9 ms 16716 KB Output is correct
6 Correct 9 ms 16716 KB Output is correct
7 Correct 9 ms 16716 KB Output is correct
8 Correct 12 ms 16752 KB Output is correct
9 Correct 9 ms 16716 KB Output is correct
10 Correct 9 ms 16704 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 16716 KB Output is correct
2 Correct 11 ms 16716 KB Output is correct
3 Correct 10 ms 16716 KB Output is correct
4 Correct 12 ms 16716 KB Output is correct
5 Correct 10 ms 16716 KB Output is correct
6 Correct 12 ms 16680 KB Output is correct
7 Correct 10 ms 16748 KB Output is correct
8 Correct 10 ms 16716 KB Output is correct
9 Correct 9 ms 16716 KB Output is correct
10 Correct 9 ms 16716 KB Output is correct
11 Correct 9 ms 16716 KB Output is correct
12 Correct 9 ms 16716 KB Output is correct
13 Correct 11 ms 16716 KB Output is correct
14 Correct 10 ms 16848 KB Output is correct
15 Correct 10 ms 16716 KB Output is correct
16 Correct 12 ms 16740 KB Output is correct
17 Correct 10 ms 16716 KB Output is correct
18 Correct 10 ms 16740 KB Output is correct
19 Correct 10 ms 16744 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 16720 KB Output is correct
2 Correct 9 ms 16716 KB Output is correct
3 Correct 9 ms 16716 KB Output is correct
4 Correct 9 ms 16716 KB Output is correct
5 Correct 9 ms 16716 KB Output is correct
6 Correct 9 ms 16716 KB Output is correct
7 Correct 9 ms 16716 KB Output is correct
8 Correct 12 ms 16752 KB Output is correct
9 Correct 9 ms 16716 KB Output is correct
10 Correct 9 ms 16704 KB Output is correct
11 Correct 9 ms 16716 KB Output is correct
12 Correct 11 ms 16716 KB Output is correct
13 Correct 10 ms 16716 KB Output is correct
14 Correct 12 ms 16716 KB Output is correct
15 Correct 10 ms 16716 KB Output is correct
16 Correct 12 ms 16680 KB Output is correct
17 Correct 10 ms 16748 KB Output is correct
18 Correct 10 ms 16716 KB Output is correct
19 Correct 9 ms 16716 KB Output is correct
20 Correct 9 ms 16716 KB Output is correct
21 Correct 9 ms 16716 KB Output is correct
22 Correct 9 ms 16716 KB Output is correct
23 Correct 11 ms 16716 KB Output is correct
24 Correct 10 ms 16848 KB Output is correct
25 Correct 10 ms 16716 KB Output is correct
26 Correct 12 ms 16740 KB Output is correct
27 Correct 10 ms 16716 KB Output is correct
28 Correct 10 ms 16740 KB Output is correct
29 Correct 10 ms 16744 KB Output is correct
30 Correct 10 ms 16716 KB Output is correct
31 Correct 10 ms 16820 KB Output is correct
32 Correct 11 ms 16844 KB Output is correct
33 Correct 13 ms 16844 KB Output is correct
34 Correct 13 ms 16904 KB Output is correct
35 Correct 13 ms 16972 KB Output is correct
36 Correct 15 ms 16972 KB Output is correct
37 Correct 16 ms 17100 KB Output is correct
38 Correct 15 ms 17100 KB Output is correct
39 Correct 15 ms 17104 KB Output is correct
40 Correct 13 ms 16924 KB Output is correct
41 Correct 13 ms 17028 KB Output is correct
42 Correct 14 ms 17020 KB Output is correct
43 Correct 14 ms 17108 KB Output is correct
44 Correct 15 ms 17100 KB Output is correct
45 Correct 14 ms 17004 KB Output is correct
46 Correct 15 ms 17228 KB Output is correct
47 Correct 15 ms 17316 KB Output is correct
48 Correct 14 ms 17100 KB Output is correct
49 Correct 17 ms 17180 KB Output is correct
50 Correct 14 ms 17100 KB Output is correct
51 Correct 13 ms 17100 KB Output is correct
52 Correct 14 ms 17124 KB Output is correct
53 Correct 14 ms 17228 KB Output is correct
54 Correct 14 ms 17240 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 16720 KB Output is correct
2 Correct 9 ms 16716 KB Output is correct
3 Correct 9 ms 16716 KB Output is correct
4 Correct 9 ms 16716 KB Output is correct
5 Correct 9 ms 16716 KB Output is correct
6 Correct 9 ms 16716 KB Output is correct
7 Correct 9 ms 16716 KB Output is correct
8 Correct 12 ms 16752 KB Output is correct
9 Correct 9 ms 16716 KB Output is correct
10 Correct 9 ms 16704 KB Output is correct
11 Correct 9 ms 16716 KB Output is correct
12 Correct 11 ms 16716 KB Output is correct
13 Correct 10 ms 16716 KB Output is correct
14 Correct 12 ms 16716 KB Output is correct
15 Correct 10 ms 16716 KB Output is correct
16 Correct 12 ms 16680 KB Output is correct
17 Correct 10 ms 16748 KB Output is correct
18 Correct 10 ms 16716 KB Output is correct
19 Correct 9 ms 16716 KB Output is correct
20 Correct 9 ms 16716 KB Output is correct
21 Correct 9 ms 16716 KB Output is correct
22 Correct 9 ms 16716 KB Output is correct
23 Correct 11 ms 16716 KB Output is correct
24 Correct 10 ms 16848 KB Output is correct
25 Correct 10 ms 16716 KB Output is correct
26 Correct 12 ms 16740 KB Output is correct
27 Correct 10 ms 16716 KB Output is correct
28 Correct 10 ms 16740 KB Output is correct
29 Correct 10 ms 16744 KB Output is correct
30 Correct 10 ms 16716 KB Output is correct
31 Correct 10 ms 16820 KB Output is correct
32 Correct 11 ms 16844 KB Output is correct
33 Correct 13 ms 16844 KB Output is correct
34 Correct 13 ms 16904 KB Output is correct
35 Correct 13 ms 16972 KB Output is correct
36 Correct 15 ms 16972 KB Output is correct
37 Correct 16 ms 17100 KB Output is correct
38 Correct 15 ms 17100 KB Output is correct
39 Correct 15 ms 17104 KB Output is correct
40 Correct 13 ms 16924 KB Output is correct
41 Correct 13 ms 17028 KB Output is correct
42 Correct 14 ms 17020 KB Output is correct
43 Correct 14 ms 17108 KB Output is correct
44 Correct 15 ms 17100 KB Output is correct
45 Correct 14 ms 17004 KB Output is correct
46 Correct 15 ms 17228 KB Output is correct
47 Correct 15 ms 17316 KB Output is correct
48 Correct 14 ms 17100 KB Output is correct
49 Correct 17 ms 17180 KB Output is correct
50 Correct 14 ms 17100 KB Output is correct
51 Correct 13 ms 17100 KB Output is correct
52 Correct 14 ms 17124 KB Output is correct
53 Correct 14 ms 17228 KB Output is correct
54 Correct 14 ms 17240 KB Output is correct
55 Correct 23 ms 17792 KB Output is correct
56 Correct 64 ms 20856 KB Output is correct
57 Correct 106 ms 23512 KB Output is correct
58 Correct 143 ms 25664 KB Output is correct
59 Correct 178 ms 28516 KB Output is correct
60 Correct 234 ms 31420 KB Output is correct
61 Correct 263 ms 33640 KB Output is correct
62 Correct 303 ms 35412 KB Output is correct
63 Correct 371 ms 38956 KB Output is correct
64 Correct 415 ms 39560 KB Output is correct
65 Correct 267 ms 33068 KB Output is correct
66 Correct 290 ms 33160 KB Output is correct
67 Correct 276 ms 33136 KB Output is correct
68 Correct 341 ms 37328 KB Output is correct
69 Correct 387 ms 37600 KB Output is correct
70 Correct 400 ms 37504 KB Output is correct
71 Correct 386 ms 52984 KB Output is correct
72 Correct 383 ms 52580 KB Output is correct
73 Correct 359 ms 49204 KB Output is correct
74 Correct 363 ms 49320 KB Output is correct
75 Correct 365 ms 48640 KB Output is correct
76 Correct 406 ms 48516 KB Output is correct
77 Correct 372 ms 47328 KB Output is correct
78 Correct 365 ms 46220 KB Output is correct
79 Correct 339 ms 45448 KB Output is correct