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Submission #519763

# Submission time Handle Problem Language Result Execution time Memory
519763 2022-01-27T09:56:41 Z Monarchuwu Magic Tree (CEOI19_magictree) C++17
100 / 100
 158 ms 37712 KB 
#include<iostream>
#include<algorithm>
#include<vector>
#include<map>
using namespace std;
typedef long long ll;

typedef pair<int, int> pii;
#define ff first
#define ss second

const int N = 1e5 + 9;
int n, m, k;
int p[N];
pii fruit[N];
vector<int> g[N];

map<int, ll> dp[N];
namespace sub8 {
    int cnt(0), b[N];
    void dfs(int u) {
        for (int v : g[u]) {
            dfs(v);
            if (dp[u].size() < dp[v].size()) dp[u].swap(dp[v]);
            for (auto it : dp[v])
                dp[u][it.ff] += it.ss;
        }
        if (fruit[u].ff) {
            dp[u][fruit[u].ff] += fruit[u].ss;
            map<int, ll>::iterator it = dp[u].upper_bound(fruit[u].ff), tmp;

            for (ll diff = 0; it != dp[u].end(); it = tmp) {
                diff += it->ss;
                if (diff <= fruit[u].ss) {
                    // set dp[u][it->ff] = dp[u][fruit[u].ff], reset diff = 0
                    tmp = next(it);
                    dp[u].erase(it);
                }
                else {
                    // nothing change, recalc diff
                    it->ss = diff - fruit[u].ss;
                    break;
                }
            }
        }
    }
    void solve() {
        for (int i = 1; i <= n; ++i) if (fruit[i].ff) b[++cnt] = fruit[i].ff;
        sort(b + 1, b + cnt + 1);
        cnt = unique(b + 1, b + cnt + 1) - b;
        for (int i = 1; i <= n; ++i)
            if (fruit[i].ff) fruit[i].ff = lower_bound(b + 1, b + cnt, fruit[i].ff) - b;

        dfs(1);
        ll ans(0);
        for (auto it : dp[1]) ans += it.ss;
        cout << ans << '\n';
    }
}

int main() {
    cin.tie(NULL)->sync_with_stdio(false);
    cin >> n >> m >> k;
    for (int i = 2; i <= n; ++i) {
        cin >> p[i];
        g[p[i]].push_back(i);
    }
    for (int i = 0, v; i < m; ++i) {
        cin >> v;
        cin >> fruit[v].ff >> fruit[v].ss;
    }

    sub8::solve();
}
/**  /\_/\
 *  (= ._.)
 *  / >0  \>1
**/

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7372 KB Output is correct
2 Correct 4 ms 7372 KB Output is correct
3 Correct 4 ms 7372 KB Output is correct
4 Correct 4 ms 7272 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 4 ms 7372 KB Output is correct
7 Correct 5 ms 7328 KB Output is correct
8 Correct 4 ms 7372 KB Output is correct
9 Correct 3 ms 7372 KB Output is correct

Subtask #2
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 62 ms 18924 KB Output is correct
2 Correct 45 ms 20036 KB Output is correct
3 Correct 137 ms 37712 KB Output is correct
4 Correct 88 ms 20704 KB Output is correct
5 Correct 120 ms 22716 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7500 KB Output is correct
2 Correct 5 ms 7508 KB Output is correct
3 Correct 6 ms 7504 KB Output is correct
4 Correct 52 ms 28000 KB Output is correct
5 Correct 72 ms 31936 KB Output is correct
6 Correct 73 ms 28012 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 16288 KB Output is correct
2 Correct 76 ms 15460 KB Output is correct
3 Correct 64 ms 20164 KB Output is correct
4 Correct 49 ms 16592 KB Output is correct
5 Correct 54 ms 28216 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7372 KB Output is correct
2 Correct 4 ms 7372 KB Output is correct
3 Correct 4 ms 7372 KB Output is correct
4 Correct 4 ms 7272 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 4 ms 7372 KB Output is correct
7 Correct 5 ms 7328 KB Output is correct
8 Correct 4 ms 7372 KB Output is correct
9 Correct 3 ms 7372 KB Output is correct
10 Correct 77 ms 18412 KB Output is correct
11 Correct 75 ms 17416 KB Output is correct
12 Correct 59 ms 19584 KB Output is correct
13 Correct 60 ms 15960 KB Output is correct
14 Correct 50 ms 27592 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 8132 KB Output is correct
2 Correct 26 ms 10828 KB Output is correct
3 Correct 37 ms 10784 KB Output is correct
4 Correct 29 ms 10820 KB Output is correct
5 Correct 14 ms 9152 KB Output is correct
6 Correct 32 ms 13344 KB Output is correct
7 Correct 31 ms 17212 KB Output is correct

Subtask #7
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7372 KB Output is correct
2 Correct 4 ms 7372 KB Output is correct
3 Correct 4 ms 7372 KB Output is correct
4 Correct 4 ms 7272 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 4 ms 7372 KB Output is correct
7 Correct 5 ms 7328 KB Output is correct
8 Correct 4 ms 7372 KB Output is correct
9 Correct 3 ms 7372 KB Output is correct
10 Correct 6 ms 7500 KB Output is correct
11 Correct 5 ms 7508 KB Output is correct
12 Correct 6 ms 7504 KB Output is correct
13 Correct 52 ms 28000 KB Output is correct
14 Correct 72 ms 31936 KB Output is correct
15 Correct 73 ms 28012 KB Output is correct
16 Correct 77 ms 18412 KB Output is correct
17 Correct 75 ms 17416 KB Output is correct
18 Correct 59 ms 19584 KB Output is correct
19 Correct 60 ms 15960 KB Output is correct
20 Correct 50 ms 27592 KB Output is correct
21 Correct 24 ms 10788 KB Output is correct
22 Correct 86 ms 19272 KB Output is correct
23 Correct 91 ms 22504 KB Output is correct
24 Correct 158 ms 31088 KB Output is correct
25 Correct 97 ms 19912 KB Output is correct
26 Correct 137 ms 22104 KB Output is correct
27 Correct 96 ms 21412 KB Output is correct

Subtask #8
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7372 KB Output is correct
2 Correct 4 ms 7372 KB Output is correct
3 Correct 4 ms 7372 KB Output is correct
4 Correct 4 ms 7272 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 4 ms 7372 KB Output is correct
7 Correct 5 ms 7328 KB Output is correct
8 Correct 4 ms 7372 KB Output is correct
9 Correct 3 ms 7372 KB Output is correct
10 Correct 62 ms 18924 KB Output is correct
11 Correct 45 ms 20036 KB Output is correct
12 Correct 137 ms 37712 KB Output is correct
13 Correct 88 ms 20704 KB Output is correct
14 Correct 120 ms 22716 KB Output is correct
15 Correct 6 ms 7500 KB Output is correct
16 Correct 5 ms 7508 KB Output is correct
17 Correct 6 ms 7504 KB Output is correct
18 Correct 52 ms 28000 KB Output is correct
19 Correct 72 ms 31936 KB Output is correct
20 Correct 73 ms 28012 KB Output is correct
21 Correct 68 ms 16288 KB Output is correct
22 Correct 76 ms 15460 KB Output is correct
23 Correct 64 ms 20164 KB Output is correct
24 Correct 49 ms 16592 KB Output is correct
25 Correct 54 ms 28216 KB Output is correct
26 Correct 77 ms 18412 KB Output is correct
27 Correct 75 ms 17416 KB Output is correct
28 Correct 59 ms 19584 KB Output is correct
29 Correct 60 ms 15960 KB Output is correct
30 Correct 50 ms 27592 KB Output is correct
31 Correct 12 ms 8132 KB Output is correct
32 Correct 26 ms 10828 KB Output is correct
33 Correct 37 ms 10784 KB Output is correct
34 Correct 29 ms 10820 KB Output is correct
35 Correct 14 ms 9152 KB Output is correct
36 Correct 32 ms 13344 KB Output is correct
37 Correct 31 ms 17212 KB Output is correct
38 Correct 24 ms 10788 KB Output is correct
39 Correct 86 ms 19272 KB Output is correct
40 Correct 91 ms 22504 KB Output is correct
41 Correct 158 ms 31088 KB Output is correct
42 Correct 97 ms 19912 KB Output is correct
43 Correct 137 ms 22104 KB Output is correct
44 Correct 96 ms 21412 KB Output is correct
45 Correct 25 ms 11236 KB Output is correct
46 Correct 88 ms 20508 KB Output is correct
47 Correct 90 ms 23824 KB Output is correct
48 Correct 142 ms 33972 KB Output is correct
49 Correct 111 ms 20692 KB Output is correct
50 Correct 131 ms 23060 KB Output is correct
51 Correct 134 ms 22388 KB Output is correct