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Submission #939377

# Submission time Handle Problem Language Result Execution time Memory
939377 2024-03-06T10:08:32 Z Alcabel Fireworks (APIO16_fireworks) C++17
100 / 100
 210 ms 79184 KB 
#include <bits/stdc++.h>
using namespace std;

const int maxn = 3e5;
priority_queue<long long> dp[maxn];
long long val[maxn];
int slope[maxn];
vector<int> g[maxn];
int par[maxn], c[maxn];

/*void print(int v) {
    vector<long long> res;
    {
        auto tmp = down[v];
        while (!tmp.empty()) {
            res.emplace_back(tmp.top());
            tmp.pop();
        }
        reverse(res.begin(), res.end());
    }
    {
        auto tmp = up[v];
        while (!tmp.empty()) {
            res.emplace_back(tmp.top() + modUp[v]);
            tmp.pop();
        }
        for (const int& x : res) {
            cerr << x << ' ';
        }
        cerr << '\n';
    }
}*/

void dfs(int v) {
    if (g[v].empty()) {
        val[v] = c[v];
        slope[v] = -1;
        dp[v].emplace(c[v]);
        dp[v].emplace(c[v]);
        return;
    }
    for (const int& u : g[v]) {
        dfs(u);
        if (dp[v].size() < dp[u].size()) {
            swap(dp[v], dp[u]);
            swap(val[v], val[u]);
            swap(slope[v], slope[u]);
        }
        slope[v] += slope[u];
        val[v] += val[u];
        while (!dp[u].empty()) {
            dp[v].emplace(dp[u].top());
            dp[u].pop();
        }
    }
    // cerr << "v: " << v + 1 << " before:\n";
    // print(v);
    if (par[v] != -1) {
        val[v] += c[v];
        while (slope[v] + (int)dp[v].size() > 1) {
            dp[v].pop();
        }
        long long last = dp[v].top();
        dp[v].pop();
        long long prelast = dp[v].top();
        dp[v].pop();
        dp[v].emplace(prelast + c[v]);
        dp[v].emplace(last + c[v]);
    }
    // cerr << "v: " << v + 1 << ", val: " << val[v] << ", slope: " << slope[v] << '\n';
    // print(v);
}

void solve() {
    int n, m;
    cin >> n >> m;
    par[0] = -1, c[0] = 0;
    for (int i = 1; i < n + m; ++i) {
        cin >> par[i] >> c[i];
        --par[i];
        g[par[i]].emplace_back(i);
    }
    dfs(0);
    while (slope[0] + (int)dp[0].size() > 0) {
        dp[0].pop();
    }
    long long ans = val[0];
    vector<long long> leftPart;
    while (!dp[0].empty()) {
        leftPart.emplace_back(dp[0].top());
        dp[0].pop();
    }
    leftPart.emplace_back(0);
    reverse(leftPart.begin(), leftPart.end());
    for (int i = 0; i < (int)leftPart.size() - 1; ++i) {
        ans += (slope[0] + i) * (leftPart[i + 1] - leftPart[i]);
    }
    cout << ans << '\n';
}
 
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
 
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    int T = 1;
    cin >> T;
    while (T--) {
        solve();
        cerr << "-----------\n";
        cout << "-----------\n";
    }
#else
    int T = 1;
    // cin >> T;
    while (T--) {
        solve();
    }
#endif
 
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22360 KB Output is correct
2 Correct 5 ms 22364 KB Output is correct
3 Correct 5 ms 22460 KB Output is correct
4 Correct 5 ms 22360 KB Output is correct
5 Correct 5 ms 22548 KB Output is correct
6 Correct 5 ms 22364 KB Output is correct
7 Correct 5 ms 22364 KB Output is correct
8 Correct 6 ms 22364 KB Output is correct
9 Correct 5 ms 22364 KB Output is correct
10 Correct 5 ms 22616 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22364 KB Output is correct
2 Correct 5 ms 22364 KB Output is correct
3 Correct 5 ms 22364 KB Output is correct
4 Correct 5 ms 22364 KB Output is correct
5 Correct 6 ms 22600 KB Output is correct
6 Correct 5 ms 22364 KB Output is correct
7 Correct 5 ms 22364 KB Output is correct
8 Correct 5 ms 22552 KB Output is correct
9 Correct 5 ms 22364 KB Output is correct
10 Correct 5 ms 22364 KB Output is correct
11 Correct 5 ms 22364 KB Output is correct
12 Correct 5 ms 22360 KB Output is correct
13 Correct 5 ms 22364 KB Output is correct
14 Correct 5 ms 22620 KB Output is correct
15 Correct 5 ms 22364 KB Output is correct
16 Correct 5 ms 22468 KB Output is correct
17 Correct 5 ms 22364 KB Output is correct
18 Correct 6 ms 22364 KB Output is correct
19 Correct 5 ms 22364 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22360 KB Output is correct
2 Correct 5 ms 22364 KB Output is correct
3 Correct 5 ms 22460 KB Output is correct
4 Correct 5 ms 22360 KB Output is correct
5 Correct 5 ms 22548 KB Output is correct
6 Correct 5 ms 22364 KB Output is correct
7 Correct 5 ms 22364 KB Output is correct
8 Correct 6 ms 22364 KB Output is correct
9 Correct 5 ms 22364 KB Output is correct
10 Correct 5 ms 22616 KB Output is correct
11 Correct 5 ms 22364 KB Output is correct
12 Correct 5 ms 22364 KB Output is correct
13 Correct 5 ms 22364 KB Output is correct
14 Correct 5 ms 22364 KB Output is correct
15 Correct 6 ms 22600 KB Output is correct
16 Correct 5 ms 22364 KB Output is correct
17 Correct 5 ms 22364 KB Output is correct
18 Correct 5 ms 22552 KB Output is correct
19 Correct 5 ms 22364 KB Output is correct
20 Correct 5 ms 22364 KB Output is correct
21 Correct 5 ms 22364 KB Output is correct
22 Correct 5 ms 22360 KB Output is correct
23 Correct 5 ms 22364 KB Output is correct
24 Correct 5 ms 22620 KB Output is correct
25 Correct 5 ms 22364 KB Output is correct
26 Correct 5 ms 22468 KB Output is correct
27 Correct 5 ms 22364 KB Output is correct
28 Correct 6 ms 22364 KB Output is correct
29 Correct 5 ms 22364 KB Output is correct
30 Correct 6 ms 22620 KB Output is correct
31 Correct 6 ms 22616 KB Output is correct
32 Correct 6 ms 22620 KB Output is correct
33 Correct 6 ms 22616 KB Output is correct
34 Correct 8 ms 22620 KB Output is correct
35 Correct 6 ms 22680 KB Output is correct
36 Correct 7 ms 22872 KB Output is correct
37 Correct 7 ms 22700 KB Output is correct
38 Correct 7 ms 22840 KB Output is correct
39 Correct 7 ms 22876 KB Output is correct
40 Correct 6 ms 23384 KB Output is correct
41 Correct 7 ms 23384 KB Output is correct
42 Correct 6 ms 22620 KB Output is correct
43 Correct 8 ms 23132 KB Output is correct
44 Correct 9 ms 23060 KB Output is correct
45 Correct 7 ms 22956 KB Output is correct
46 Correct 8 ms 22876 KB Output is correct
47 Correct 8 ms 22904 KB Output is correct
48 Correct 7 ms 22876 KB Output is correct
49 Correct 7 ms 23128 KB Output is correct
50 Correct 7 ms 22876 KB Output is correct
51 Correct 7 ms 22876 KB Output is correct
52 Correct 6 ms 22976 KB Output is correct
53 Correct 7 ms 22876 KB Output is correct
54 Correct 7 ms 22976 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 22360 KB Output is correct
2 Correct 5 ms 22364 KB Output is correct
3 Correct 5 ms 22460 KB Output is correct
4 Correct 5 ms 22360 KB Output is correct
5 Correct 5 ms 22548 KB Output is correct
6 Correct 5 ms 22364 KB Output is correct
7 Correct 5 ms 22364 KB Output is correct
8 Correct 6 ms 22364 KB Output is correct
9 Correct 5 ms 22364 KB Output is correct
10 Correct 5 ms 22616 KB Output is correct
11 Correct 5 ms 22364 KB Output is correct
12 Correct 5 ms 22364 KB Output is correct
13 Correct 5 ms 22364 KB Output is correct
14 Correct 5 ms 22364 KB Output is correct
15 Correct 6 ms 22600 KB Output is correct
16 Correct 5 ms 22364 KB Output is correct
17 Correct 5 ms 22364 KB Output is correct
18 Correct 5 ms 22552 KB Output is correct
19 Correct 5 ms 22364 KB Output is correct
20 Correct 5 ms 22364 KB Output is correct
21 Correct 5 ms 22364 KB Output is correct
22 Correct 5 ms 22360 KB Output is correct
23 Correct 5 ms 22364 KB Output is correct
24 Correct 5 ms 22620 KB Output is correct
25 Correct 5 ms 22364 KB Output is correct
26 Correct 5 ms 22468 KB Output is correct
27 Correct 5 ms 22364 KB Output is correct
28 Correct 6 ms 22364 KB Output is correct
29 Correct 5 ms 22364 KB Output is correct
30 Correct 6 ms 22620 KB Output is correct
31 Correct 6 ms 22616 KB Output is correct
32 Correct 6 ms 22620 KB Output is correct
33 Correct 6 ms 22616 KB Output is correct
34 Correct 8 ms 22620 KB Output is correct
35 Correct 6 ms 22680 KB Output is correct
36 Correct 7 ms 22872 KB Output is correct
37 Correct 7 ms 22700 KB Output is correct
38 Correct 7 ms 22840 KB Output is correct
39 Correct 7 ms 22876 KB Output is correct
40 Correct 6 ms 23384 KB Output is correct
41 Correct 7 ms 23384 KB Output is correct
42 Correct 6 ms 22620 KB Output is correct
43 Correct 8 ms 23132 KB Output is correct
44 Correct 9 ms 23060 KB Output is correct
45 Correct 7 ms 22956 KB Output is correct
46 Correct 8 ms 22876 KB Output is correct
47 Correct 8 ms 22904 KB Output is correct
48 Correct 7 ms 22876 KB Output is correct
49 Correct 7 ms 23128 KB Output is correct
50 Correct 7 ms 22876 KB Output is correct
51 Correct 7 ms 22876 KB Output is correct
52 Correct 6 ms 22976 KB Output is correct
53 Correct 7 ms 22876 KB Output is correct
54 Correct 7 ms 22976 KB Output is correct
55 Correct 11 ms 23384 KB Output is correct
56 Correct 39 ms 26064 KB Output is correct
57 Correct 54 ms 28296 KB Output is correct
58 Correct 55 ms 30216 KB Output is correct
59 Correct 85 ms 32452 KB Output is correct
60 Correct 120 ms 34512 KB Output is correct
61 Correct 172 ms 37160 KB Output is correct
62 Correct 139 ms 38284 KB Output is correct
63 Correct 197 ms 41212 KB Output is correct
64 Correct 210 ms 41792 KB Output is correct
65 Correct 106 ms 79184 KB Output is correct
66 Correct 87 ms 79180 KB Output is correct
67 Correct 100 ms 37120 KB Output is correct
68 Correct 144 ms 62144 KB Output is correct
69 Correct 166 ms 58612 KB Output is correct
70 Correct 160 ms 58560 KB Output is correct
71 Correct 176 ms 59016 KB Output is correct
72 Correct 169 ms 57908 KB Output is correct
73 Correct 156 ms 54984 KB Output is correct
74 Correct 162 ms 55216 KB Output is correct
75 Correct 207 ms 51636 KB Output is correct
76 Correct 151 ms 51636 KB Output is correct
77 Correct 160 ms 53436 KB Output is correct
78 Correct 153 ms 50240 KB Output is correct
79 Correct 148 ms 48548 KB Output is correct