답안 #106628

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
106628	2019-04-19T09:52:28 Z	lyc	Fireworks (APIO16_fireworks)	C++14	100 / 100	394 ms	73336 KB

fireworks

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
typedef pair<int, ii> iii;
typedef pair<ii, int> ri3;
#define mp make_pair
#define pb push_back
#define fi first
#define sc second
#define SZ(x) (int)(x).size()
#define ALL(x) begin(x), end(x) 
#define REP(i, n) for (int i = 0; i < n; ++i) 
#define FOR(i, a, b) for (int i = a; i <= b; ++i)
#define RFOR(i, a, b) for (int i = a; i >= b; --i)

const int N = 3e5+5;

int n, m;
vector<ii> al[N];

struct Slope {
    priority_queue<ll> points;
    ll a = 0, b = 0;

    void clean() {
        while (a > 1) {
            --a;
            b += points.top();
            points.pop();
        }
    }
};

void print(priority_queue<ll> pq) { while (!pq.empty()) cout << pq.top() << ' ', pq.pop(); cout << '\n'; }

Slope dfs(int u, int p) 
{
    Slope cur;
    if (SZ(al[u]) == 1 and al[u][0].fi == p) 
        cur.points.push(0), cur.points.push(0), cur.a = 1, cur.b = 0;
    else for (auto v : al[u]) if (v.fi != p) {
        Slope nxt = dfs(v.fi, u);
        ll x = nxt.points.top(); nxt.points.pop();
        ll y = nxt.points.top(); nxt.points.pop();
        nxt.points.push(x+v.sc);
        nxt.points.push(y+v.sc);
        nxt.b -= v.sc;
        //cout << "POINT " << x+v.sc << " " << nxt.a << " " << nxt.b << endl;

        if (SZ(nxt.points) > SZ(cur.points)) swap(nxt, cur);
        while (!nxt.points.empty()) {
            cur.points.push(nxt.points.top());
            nxt.points.pop();
        }
        cur.a += nxt.a; cur.b += nxt.b;
    }
    //cout << u << " :: " << cur.a << " " << cur.b << "\t\t\tSZ " << cur.points.size() << endl;
    cur.clean();
    return cur;
}

int main()
{
    //freopen("in.txt", "r", stdin);
    ios::sync_with_stdio(false);
    cin.tie(0);
    
    cin >> n >> m;
    FOR(i, 2, n+m){
        int p, c; cin >> p >> c;
        al[i].emplace_back(p, c);
        al[p].emplace_back(i, c);
    }

    Slope ans = dfs(1, 0);
    //print(ans.points); cout << ans.points.top() << " " << ans.a << " " << ans.b << endl;
    cout << (ll)ans.points.top()*ans.a + ans.b << '\n';
}

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	7424 KB	Output is correct
2	Correct	8 ms	7424 KB	Output is correct
3	Correct	9 ms	7424 KB	Output is correct
4	Correct	14 ms	7424 KB	Output is correct
5	Correct	8 ms	7424 KB	Output is correct
6	Correct	9 ms	7424 KB	Output is correct
7	Correct	9 ms	7424 KB	Output is correct
8	Correct	11 ms	7424 KB	Output is correct
9	Correct	10 ms	7424 KB	Output is correct
10	Correct	10 ms	7424 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	7424 KB	Output is correct
2	Correct	9 ms	7424 KB	Output is correct
3	Correct	8 ms	7400 KB	Output is correct
4	Correct	8 ms	7424 KB	Output is correct
5	Correct	11 ms	7364 KB	Output is correct
6	Correct	10 ms	7424 KB	Output is correct
7	Correct	10 ms	7424 KB	Output is correct
8	Correct	9 ms	7424 KB	Output is correct
9	Correct	9 ms	7424 KB	Output is correct
10	Correct	8 ms	7424 KB	Output is correct
11	Correct	13 ms	7424 KB	Output is correct
12	Correct	10 ms	7424 KB	Output is correct
13	Correct	10 ms	7424 KB	Output is correct
14	Correct	12 ms	7424 KB	Output is correct
15	Correct	11 ms	7424 KB	Output is correct
16	Correct	9 ms	7424 KB	Output is correct
17	Correct	10 ms	7424 KB	Output is correct
18	Correct	8 ms	7424 KB	Output is correct
19	Correct	9 ms	7424 KB	Output is correct

Subtask #3
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	7424 KB	Output is correct
2	Correct	8 ms	7424 KB	Output is correct
3	Correct	9 ms	7424 KB	Output is correct
4	Correct	14 ms	7424 KB	Output is correct
5	Correct	8 ms	7424 KB	Output is correct
6	Correct	9 ms	7424 KB	Output is correct
7	Correct	9 ms	7424 KB	Output is correct
8	Correct	11 ms	7424 KB	Output is correct
9	Correct	10 ms	7424 KB	Output is correct
10	Correct	10 ms	7424 KB	Output is correct
11	Correct	9 ms	7424 KB	Output is correct
12	Correct	9 ms	7424 KB	Output is correct
13	Correct	8 ms	7400 KB	Output is correct
14	Correct	8 ms	7424 KB	Output is correct
15	Correct	11 ms	7364 KB	Output is correct
16	Correct	10 ms	7424 KB	Output is correct
17	Correct	10 ms	7424 KB	Output is correct
18	Correct	9 ms	7424 KB	Output is correct
19	Correct	9 ms	7424 KB	Output is correct
20	Correct	8 ms	7424 KB	Output is correct
21	Correct	13 ms	7424 KB	Output is correct
22	Correct	10 ms	7424 KB	Output is correct
23	Correct	10 ms	7424 KB	Output is correct
24	Correct	12 ms	7424 KB	Output is correct
25	Correct	11 ms	7424 KB	Output is correct
26	Correct	9 ms	7424 KB	Output is correct
27	Correct	10 ms	7424 KB	Output is correct
28	Correct	8 ms	7424 KB	Output is correct
29	Correct	9 ms	7424 KB	Output is correct
30	Correct	9 ms	7424 KB	Output is correct
31	Correct	9 ms	7424 KB	Output is correct
32	Correct	12 ms	7444 KB	Output is correct
33	Correct	13 ms	7552 KB	Output is correct
34	Correct	13 ms	7552 KB	Output is correct
35	Correct	12 ms	7680 KB	Output is correct
36	Correct	11 ms	7680 KB	Output is correct
37	Correct	16 ms	7724 KB	Output is correct
38	Correct	13 ms	7680 KB	Output is correct
39	Correct	13 ms	7680 KB	Output is correct
40	Correct	13 ms	8448 KB	Output is correct
41	Correct	13 ms	8448 KB	Output is correct
42	Correct	12 ms	7680 KB	Output is correct
43	Correct	12 ms	8192 KB	Output is correct
44	Correct	13 ms	8064 KB	Output is correct
45	Correct	16 ms	8064 KB	Output is correct
46	Correct	15 ms	7808 KB	Output is correct
47	Correct	14 ms	7808 KB	Output is correct
48	Correct	13 ms	7808 KB	Output is correct
49	Correct	14 ms	7808 KB	Output is correct
50	Correct	13 ms	7680 KB	Output is correct
51	Correct	12 ms	7652 KB	Output is correct
52	Correct	13 ms	7808 KB	Output is correct
53	Correct	12 ms	7808 KB	Output is correct
54	Correct	11 ms	7808 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	7424 KB	Output is correct
2	Correct	8 ms	7424 KB	Output is correct
3	Correct	9 ms	7424 KB	Output is correct
4	Correct	14 ms	7424 KB	Output is correct
5	Correct	8 ms	7424 KB	Output is correct
6	Correct	9 ms	7424 KB	Output is correct
7	Correct	9 ms	7424 KB	Output is correct
8	Correct	11 ms	7424 KB	Output is correct
9	Correct	10 ms	7424 KB	Output is correct
10	Correct	10 ms	7424 KB	Output is correct
11	Correct	9 ms	7424 KB	Output is correct
12	Correct	9 ms	7424 KB	Output is correct
13	Correct	8 ms	7400 KB	Output is correct
14	Correct	8 ms	7424 KB	Output is correct
15	Correct	11 ms	7364 KB	Output is correct
16	Correct	10 ms	7424 KB	Output is correct
17	Correct	10 ms	7424 KB	Output is correct
18	Correct	9 ms	7424 KB	Output is correct
19	Correct	9 ms	7424 KB	Output is correct
20	Correct	8 ms	7424 KB	Output is correct
21	Correct	13 ms	7424 KB	Output is correct
22	Correct	10 ms	7424 KB	Output is correct
23	Correct	10 ms	7424 KB	Output is correct
24	Correct	12 ms	7424 KB	Output is correct
25	Correct	11 ms	7424 KB	Output is correct
26	Correct	9 ms	7424 KB	Output is correct
27	Correct	10 ms	7424 KB	Output is correct
28	Correct	8 ms	7424 KB	Output is correct
29	Correct	9 ms	7424 KB	Output is correct
30	Correct	9 ms	7424 KB	Output is correct
31	Correct	9 ms	7424 KB	Output is correct
32	Correct	12 ms	7444 KB	Output is correct
33	Correct	13 ms	7552 KB	Output is correct
34	Correct	13 ms	7552 KB	Output is correct
35	Correct	12 ms	7680 KB	Output is correct
36	Correct	11 ms	7680 KB	Output is correct
37	Correct	16 ms	7724 KB	Output is correct
38	Correct	13 ms	7680 KB	Output is correct
39	Correct	13 ms	7680 KB	Output is correct
40	Correct	13 ms	8448 KB	Output is correct
41	Correct	13 ms	8448 KB	Output is correct
42	Correct	12 ms	7680 KB	Output is correct
43	Correct	12 ms	8192 KB	Output is correct
44	Correct	13 ms	8064 KB	Output is correct
45	Correct	16 ms	8064 KB	Output is correct
46	Correct	15 ms	7808 KB	Output is correct
47	Correct	14 ms	7808 KB	Output is correct
48	Correct	13 ms	7808 KB	Output is correct
49	Correct	14 ms	7808 KB	Output is correct
50	Correct	13 ms	7680 KB	Output is correct
51	Correct	12 ms	7652 KB	Output is correct
52	Correct	13 ms	7808 KB	Output is correct
53	Correct	12 ms	7808 KB	Output is correct
54	Correct	11 ms	7808 KB	Output is correct
55	Correct	18 ms	8192 KB	Output is correct
56	Correct	50 ms	10616 KB	Output is correct
57	Correct	91 ms	12356 KB	Output is correct
58	Correct	126 ms	13772 KB	Output is correct
59	Correct	150 ms	15772 KB	Output is correct
60	Correct	212 ms	17460 KB	Output is correct
61	Correct	212 ms	19480 KB	Output is correct
62	Correct	256 ms	20516 KB	Output is correct
63	Correct	356 ms	22932 KB	Output is correct
64	Correct	394 ms	23328 KB	Output is correct
65	Correct	206 ms	73336 KB	Output is correct
66	Correct	189 ms	73336 KB	Output is correct
67	Correct	176 ms	21752 KB	Output is correct
68	Correct	199 ms	51824 KB	Output is correct
69	Correct	275 ms	47212 KB	Output is correct
70	Correct	338 ms	47268 KB	Output is correct
71	Correct	279 ms	29284 KB	Output is correct
72	Correct	205 ms	29116 KB	Output is correct
73	Correct	181 ms	28260 KB	Output is correct
74	Correct	171 ms	28372 KB	Output is correct
75	Correct	211 ms	27704 KB	Output is correct
76	Correct	235 ms	27676 KB	Output is correct
77	Correct	239 ms	28096 KB	Output is correct
78	Correct	235 ms	28040 KB	Output is correct
79	Correct	255 ms	30932 KB	Output is correct

답안 #106628

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