답안 #572546

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
572546	2022-06-04T16:44:15 Z	piOOE	Magic Tree (CEOI19_magictree)	C++17	100 / 100	139 ms	37476 KB

magictree

#include <bits/stdc++.h>

using namespace std;

#define sz(x) ((int)size(x))
#define all(x) begin(x), end(x)
#define trace(x) cout << #x << ": " << (x) << endl;

typedef long long ll;

mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());

int rand(int l, int r) { return (int) ((ll) rnd() % (r - l + 1)) + l; }

const int N = 100000;

map<int, ll> dp[N];

int p[N], d[N], w[N];

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, m, k;
    cin >> n >> m >> k;
    for (int i = 1; i < n; ++i) {
        cin >> p[i];
        --p[i];
    }
    for (int i = 0; i < m; ++i) {
        int v;
        cin >> v;
        --v;
        cin >> d[v] >> w[v];
    }
    for (int i = n - 1; i > -1; --i) {
        if (d[i] != 0) {
            ll sum = w[i];
            dp[i][d[i]] += w[i];
            while (true) {
                auto it = dp[i].upper_bound(d[i]);
                if (it == dp[i].end()) {
                    break;
                }
                if (it->second <= sum) {
                    sum -= it->second;
                    dp[i].erase(it);
                } else {
                    it->second -= sum;
                    break;
                }
            }
        }
        if (i > 0) {
            if (dp[p[i]].size() < dp[i].size())
                swap(dp[i], dp[p[i]]);
            for (auto [a, b] : dp[i]) {
                dp[p[i]][a] += b;
            }
        }
    }
    ll ans = 0;
    for (auto [a, b] : dp[0]) {
        ans += b;
    }
    cout << ans;
    return 0;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	3 ms	4948 KB	Output is correct
7	Correct	3 ms	5028 KB	Output is correct
8	Correct	3 ms	5024 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct

Subtask #2
3.0 / 3.0

#	결과	실행 시간	메모리	Grader output
1	Correct	45 ms	15816 KB	Output is correct
2	Correct	26 ms	8608 KB	Output is correct
3	Correct	139 ms	37476 KB	Output is correct
4	Correct	89 ms	15436 KB	Output is correct
5	Correct	100 ms	20428 KB	Output is correct

Subtask #3
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	4948 KB	Output is correct
2	Correct	4 ms	4948 KB	Output is correct
3	Correct	3 ms	5036 KB	Output is correct
4	Correct	34 ms	8032 KB	Output is correct
5	Correct	56 ms	11984 KB	Output is correct
6	Correct	54 ms	8180 KB	Output is correct

Subtask #4
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	40 ms	9880 KB	Output is correct
2	Correct	53 ms	11148 KB	Output is correct
3	Correct	35 ms	9420 KB	Output is correct
4	Correct	44 ms	13472 KB	Output is correct
5	Correct	34 ms	8268 KB	Output is correct

Subtask #5
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	3 ms	4948 KB	Output is correct
7	Correct	3 ms	5028 KB	Output is correct
8	Correct	3 ms	5024 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	55 ms	15052 KB	Output is correct
11	Correct	52 ms	13820 KB	Output is correct
12	Correct	33 ms	8944 KB	Output is correct
13	Correct	33 ms	12820 KB	Output is correct
14	Correct	32 ms	7628 KB	Output is correct

Subtask #6
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	5460 KB	Output is correct
2	Correct	11 ms	6360 KB	Output is correct
3	Correct	12 ms	6356 KB	Output is correct
4	Correct	15 ms	6484 KB	Output is correct
5	Correct	10 ms	6256 KB	Output is correct
6	Correct	15 ms	6228 KB	Output is correct
7	Correct	12 ms	6228 KB	Output is correct

Subtask #7
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	3 ms	4948 KB	Output is correct
7	Correct	3 ms	5028 KB	Output is correct
8	Correct	3 ms	5024 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	4 ms	4948 KB	Output is correct
12	Correct	3 ms	5036 KB	Output is correct
13	Correct	34 ms	8032 KB	Output is correct
14	Correct	56 ms	11984 KB	Output is correct
15	Correct	54 ms	8180 KB	Output is correct
16	Correct	55 ms	15052 KB	Output is correct
17	Correct	52 ms	13820 KB	Output is correct
18	Correct	33 ms	8944 KB	Output is correct
19	Correct	33 ms	12820 KB	Output is correct
20	Correct	32 ms	7628 KB	Output is correct
21	Correct	16 ms	8780 KB	Output is correct
22	Correct	55 ms	16796 KB	Output is correct
23	Correct	61 ms	20540 KB	Output is correct
24	Correct	119 ms	31040 KB	Output is correct
25	Correct	70 ms	17096 KB	Output is correct
26	Correct	90 ms	17172 KB	Output is correct
27	Correct	59 ms	10780 KB	Output is correct

Subtask #8
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	3 ms	4948 KB	Output is correct
3	Correct	3 ms	4948 KB	Output is correct
4	Correct	3 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	3 ms	4948 KB	Output is correct
7	Correct	3 ms	5028 KB	Output is correct
8	Correct	3 ms	5024 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	45 ms	15816 KB	Output is correct
11	Correct	26 ms	8608 KB	Output is correct
12	Correct	139 ms	37476 KB	Output is correct
13	Correct	89 ms	15436 KB	Output is correct
14	Correct	100 ms	20428 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	4 ms	4948 KB	Output is correct
17	Correct	3 ms	5036 KB	Output is correct
18	Correct	34 ms	8032 KB	Output is correct
19	Correct	56 ms	11984 KB	Output is correct
20	Correct	54 ms	8180 KB	Output is correct
21	Correct	40 ms	9880 KB	Output is correct
22	Correct	53 ms	11148 KB	Output is correct
23	Correct	35 ms	9420 KB	Output is correct
24	Correct	44 ms	13472 KB	Output is correct
25	Correct	34 ms	8268 KB	Output is correct
26	Correct	55 ms	15052 KB	Output is correct
27	Correct	52 ms	13820 KB	Output is correct
28	Correct	33 ms	8944 KB	Output is correct
29	Correct	33 ms	12820 KB	Output is correct
30	Correct	32 ms	7628 KB	Output is correct
31	Correct	5 ms	5460 KB	Output is correct
32	Correct	11 ms	6360 KB	Output is correct
33	Correct	12 ms	6356 KB	Output is correct
34	Correct	15 ms	6484 KB	Output is correct
35	Correct	10 ms	6256 KB	Output is correct
36	Correct	15 ms	6228 KB	Output is correct
37	Correct	12 ms	6228 KB	Output is correct
38	Correct	16 ms	8780 KB	Output is correct
39	Correct	55 ms	16796 KB	Output is correct
40	Correct	61 ms	20540 KB	Output is correct
41	Correct	119 ms	31040 KB	Output is correct
42	Correct	70 ms	17096 KB	Output is correct
43	Correct	90 ms	17172 KB	Output is correct
44	Correct	59 ms	10780 KB	Output is correct
45	Correct	19 ms	9236 KB	Output is correct
46	Correct	61 ms	17996 KB	Output is correct
47	Correct	70 ms	22180 KB	Output is correct
48	Correct	133 ms	34364 KB	Output is correct
49	Correct	79 ms	17608 KB	Output is correct
50	Correct	97 ms	18148 KB	Output is correct
51	Correct	70 ms	11732 KB	Output is correct

답안 #572546

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