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Submission #106628

# Submission time Handle Problem Language Result Execution time Memory
106628 2019-04-19T09:52:28 Z lyc Fireworks (APIO16_fireworks) C++14
100 / 100
 394 ms 73336 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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