답안 #98065 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
98065	2019-02-20T08:42:31 Z	win11905	Fireworks (APIO16_fireworks)	C++11	100 / 100	404 ms	75748 KB

fireworks

/**
 * code generated by JHelper
 * More info: https://github.com/AlexeyDmitriev/JHelper
 * @author win11905
 */

#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()
#define vi vector<int>
#define iii tuple<int, int, int>
#define long long long
#define pii pair<int, int>
#define x first
#define y second
using namespace std;
const long MOD = 1e9+7, LINF = 1e18 + 1e16;
const int INF = 1e9+1;
const double EPS = 1e-10;
const int dx[4] = {-1, 0, 1, 0}, dy[4] = {0, 1, 0, -1};

const int N = 3e5+5;

class firework {
private:
    int n, m, cost[N], sz[N];
    int slope[N], pos[N];
    long start[N];
    vector<int> g[N];
    priority_queue<long> Q[N];
    void dfs(int u) {
        sz[u] = 1;
        for(int &v : g[u]) {
            dfs(v);
            sz[u] += sz[v];
            if(sz[v] > sz[g[u][0]]) swap(v, g[u][0]);
        }
        if(g[u].empty()) {
            pos[u] = u;
            start[u] = cost[u], slope[u] = -1;
            Q[pos[u]].emplace(cost[u]), Q[u].emplace(cost[u]);
            return;
        }
        for(int v : g[u]) {
            slope[u] += slope[v], start[u] += start[v];
            if(v == g[u][0])
                pos[u] = pos[v];
            else while(!Q[pos[v]].empty()) {
                Q[pos[u]].emplace(Q[pos[v]].top());
                Q[pos[v]].pop();
            }
        }
        long opt1 = -1, opt2 = -1;
        while(slope[u] + (int)Q[pos[u]].size() >= 0) {
            swap(opt1, opt2);
            opt1 = Q[pos[u]].top(), Q[pos[u]].pop();
        }
        Q[pos[u]].emplace(opt1 + cost[u]), Q[pos[u]].emplace(opt2 + cost[u]);
        start[u] += cost[u];
    }
public:
    void solve(istream& cin, ostream& cout) {
        cin >> n >> m;
        for(int i = 2, par; i <= n+m; ++i) {
            cin >> par >> cost[i];
            g[par].emplace_back(i);
        }
        dfs(1);
        vector<long> vec;
        while(!Q[pos[1]].empty()) vec.emplace_back(Q[pos[1]].top()), Q[pos[1]].pop();
        vec.emplace_back(0);
        reverse(all(vec));
        for(int i = 1; slope[1]; ++i) {
            start[1] += slope[1] * (vec[i] - vec[i-1]);
            slope[1]++;
        }
        cout << start[1] << endl;
    }
};

class Solver {
public:
    void solve(std::istream& in, std::ostream& out) {
        firework *obj = new firework();
        obj->solve(in, out);
    }
};

int32_t main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    Solver solver;
    std::istream& in(std::cin);
    std::ostream& out(std::cout);
    solver.solve(in, out);
    return 0;
}

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	25 ms	23808 KB	Output is correct
2	Correct	24 ms	23780 KB	Output is correct
3	Correct	24 ms	23808 KB	Output is correct
4	Correct	27 ms	23808 KB	Output is correct
5	Correct	29 ms	23800 KB	Output is correct
6	Correct	29 ms	23808 KB	Output is correct
7	Correct	26 ms	23808 KB	Output is correct
8	Correct	27 ms	23808 KB	Output is correct
9	Correct	26 ms	23808 KB	Output is correct
10	Correct	26 ms	23808 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	29 ms	23816 KB	Output is correct
2	Correct	24 ms	23808 KB	Output is correct
3	Correct	25 ms	23808 KB	Output is correct
4	Correct	26 ms	23800 KB	Output is correct
5	Correct	27 ms	23764 KB	Output is correct
6	Correct	29 ms	23808 KB	Output is correct
7	Correct	28 ms	23808 KB	Output is correct
8	Correct	25 ms	23808 KB	Output is correct
9	Correct	23 ms	23808 KB	Output is correct
10	Correct	29 ms	23808 KB	Output is correct
11	Correct	25 ms	23808 KB	Output is correct
12	Correct	28 ms	23808 KB	Output is correct
13	Correct	23 ms	23808 KB	Output is correct
14	Correct	25 ms	23936 KB	Output is correct
15	Correct	25 ms	23936 KB	Output is correct
16	Correct	25 ms	23800 KB	Output is correct
17	Correct	26 ms	23800 KB	Output is correct
18	Correct	25 ms	23808 KB	Output is correct
19	Correct	26 ms	23928 KB	Output is correct

Subtask #3
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	25 ms	23808 KB	Output is correct
2	Correct	24 ms	23780 KB	Output is correct
3	Correct	24 ms	23808 KB	Output is correct
4	Correct	27 ms	23808 KB	Output is correct
5	Correct	29 ms	23800 KB	Output is correct
6	Correct	29 ms	23808 KB	Output is correct
7	Correct	26 ms	23808 KB	Output is correct
8	Correct	27 ms	23808 KB	Output is correct
9	Correct	26 ms	23808 KB	Output is correct
10	Correct	26 ms	23808 KB	Output is correct
11	Correct	29 ms	23816 KB	Output is correct
12	Correct	24 ms	23808 KB	Output is correct
13	Correct	25 ms	23808 KB	Output is correct
14	Correct	26 ms	23800 KB	Output is correct
15	Correct	27 ms	23764 KB	Output is correct
16	Correct	29 ms	23808 KB	Output is correct
17	Correct	28 ms	23808 KB	Output is correct
18	Correct	25 ms	23808 KB	Output is correct
19	Correct	23 ms	23808 KB	Output is correct
20	Correct	29 ms	23808 KB	Output is correct
21	Correct	25 ms	23808 KB	Output is correct
22	Correct	28 ms	23808 KB	Output is correct
23	Correct	23 ms	23808 KB	Output is correct
24	Correct	25 ms	23936 KB	Output is correct
25	Correct	25 ms	23936 KB	Output is correct
26	Correct	25 ms	23800 KB	Output is correct
27	Correct	26 ms	23800 KB	Output is correct
28	Correct	25 ms	23808 KB	Output is correct
29	Correct	26 ms	23928 KB	Output is correct
30	Correct	27 ms	23916 KB	Output is correct
31	Correct	26 ms	24104 KB	Output is correct
32	Correct	27 ms	24056 KB	Output is correct
33	Correct	31 ms	23928 KB	Output is correct
34	Correct	27 ms	24056 KB	Output is correct
35	Correct	26 ms	24056 KB	Output is correct
36	Correct	28 ms	24056 KB	Output is correct
37	Correct	33 ms	24156 KB	Output is correct
38	Correct	29 ms	24192 KB	Output is correct
39	Correct	30 ms	24188 KB	Output is correct
40	Correct	32 ms	24696 KB	Output is correct
41	Correct	28 ms	24676 KB	Output is correct
42	Correct	32 ms	24060 KB	Output is correct
43	Correct	28 ms	24440 KB	Output is correct
44	Correct	32 ms	24312 KB	Output is correct
45	Correct	29 ms	24312 KB	Output is correct
46	Correct	29 ms	24316 KB	Output is correct
47	Correct	30 ms	24312 KB	Output is correct
48	Correct	29 ms	24184 KB	Output is correct
49	Correct	29 ms	24300 KB	Output is correct
50	Correct	29 ms	24188 KB	Output is correct
51	Correct	28 ms	24188 KB	Output is correct
52	Correct	30 ms	24312 KB	Output is correct
53	Correct	29 ms	24388 KB	Output is correct
54	Correct	30 ms	24320 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	25 ms	23808 KB	Output is correct
2	Correct	24 ms	23780 KB	Output is correct
3	Correct	24 ms	23808 KB	Output is correct
4	Correct	27 ms	23808 KB	Output is correct
5	Correct	29 ms	23800 KB	Output is correct
6	Correct	29 ms	23808 KB	Output is correct
7	Correct	26 ms	23808 KB	Output is correct
8	Correct	27 ms	23808 KB	Output is correct
9	Correct	26 ms	23808 KB	Output is correct
10	Correct	26 ms	23808 KB	Output is correct
11	Correct	29 ms	23816 KB	Output is correct
12	Correct	24 ms	23808 KB	Output is correct
13	Correct	25 ms	23808 KB	Output is correct
14	Correct	26 ms	23800 KB	Output is correct
15	Correct	27 ms	23764 KB	Output is correct
16	Correct	29 ms	23808 KB	Output is correct
17	Correct	28 ms	23808 KB	Output is correct
18	Correct	25 ms	23808 KB	Output is correct
19	Correct	23 ms	23808 KB	Output is correct
20	Correct	29 ms	23808 KB	Output is correct
21	Correct	25 ms	23808 KB	Output is correct
22	Correct	28 ms	23808 KB	Output is correct
23	Correct	23 ms	23808 KB	Output is correct
24	Correct	25 ms	23936 KB	Output is correct
25	Correct	25 ms	23936 KB	Output is correct
26	Correct	25 ms	23800 KB	Output is correct
27	Correct	26 ms	23800 KB	Output is correct
28	Correct	25 ms	23808 KB	Output is correct
29	Correct	26 ms	23928 KB	Output is correct
30	Correct	27 ms	23916 KB	Output is correct
31	Correct	26 ms	24104 KB	Output is correct
32	Correct	27 ms	24056 KB	Output is correct
33	Correct	31 ms	23928 KB	Output is correct
34	Correct	27 ms	24056 KB	Output is correct
35	Correct	26 ms	24056 KB	Output is correct
36	Correct	28 ms	24056 KB	Output is correct
37	Correct	33 ms	24156 KB	Output is correct
38	Correct	29 ms	24192 KB	Output is correct
39	Correct	30 ms	24188 KB	Output is correct
40	Correct	32 ms	24696 KB	Output is correct
41	Correct	28 ms	24676 KB	Output is correct
42	Correct	32 ms	24060 KB	Output is correct
43	Correct	28 ms	24440 KB	Output is correct
44	Correct	32 ms	24312 KB	Output is correct
45	Correct	29 ms	24312 KB	Output is correct
46	Correct	29 ms	24316 KB	Output is correct
47	Correct	30 ms	24312 KB	Output is correct
48	Correct	29 ms	24184 KB	Output is correct
49	Correct	29 ms	24300 KB	Output is correct
50	Correct	29 ms	24188 KB	Output is correct
51	Correct	28 ms	24188 KB	Output is correct
52	Correct	30 ms	24312 KB	Output is correct
53	Correct	29 ms	24388 KB	Output is correct
54	Correct	30 ms	24320 KB	Output is correct
55	Correct	31 ms	24684 KB	Output is correct
56	Correct	92 ms	27280 KB	Output is correct
57	Correct	117 ms	29496 KB	Output is correct
58	Correct	146 ms	31344 KB	Output is correct
59	Correct	203 ms	33560 KB	Output is correct
60	Correct	249 ms	35824 KB	Output is correct
61	Correct	307 ms	38148 KB	Output is correct
62	Correct	302 ms	39532 KB	Output is correct
63	Correct	363 ms	42312 KB	Output is correct
64	Correct	357 ms	43116 KB	Output is correct
65	Correct	166 ms	75748 KB	Output is correct
66	Correct	179 ms	75716 KB	Output is correct
67	Correct	178 ms	38264 KB	Output is correct
68	Correct	281 ms	61160 KB	Output is correct
69	Correct	329 ms	57916 KB	Output is correct
70	Correct	314 ms	57960 KB	Output is correct
71	Correct	304 ms	56576 KB	Output is correct
72	Correct	297 ms	56672 KB	Output is correct
73	Correct	276 ms	53380 KB	Output is correct
74	Correct	264 ms	53372 KB	Output is correct
75	Correct	301 ms	52320 KB	Output is correct
76	Correct	250 ms	52576 KB	Output is correct
77	Correct	283 ms	51152 KB	Output is correct
78	Correct	343 ms	50488 KB	Output is correct
79	Correct	404 ms	49084 KB	Output is correct

답안 #98065

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 19.0 / 19.0

Subtask #3 29.0 / 29.0

Subtask #4 45.0 / 45.0

Subtask #1
7.0 / 7.0

Subtask #2
19.0 / 19.0

Subtask #3
29.0 / 29.0

Subtask #4
45.0 / 45.0