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Submission #315957

# Submission time Handle Problem Language Result Execution time Memory
315957 2020-10-24T14:51:28 Z phathnv Fireworks (APIO16_fireworks) C++11
100 / 100
 540 ms 44168 KB 
#include <bits/stdc++.h>
 
#define mp make_pair
#define X first
#define Y second
#define taskname "FIREWORKS"
 
using namespace std;
 
typedef long long ll;
typedef pair <int, int> ii;
 
const int N = 3e5 + 1;
const ll INF = 5e14;
 
struct data{
    ll a, b;
    priority_queue <ll> pq; // slope changing points
    void operator += (data &other){
        a += other.a;
        b += other.b;
        if (pq.size() < other.pq.size())
            swap(pq, other.pq);
        while (!other.pq.empty()){
            pq.push(other.pq.top());
            other.pq.pop();
        }
    }
};
 
int n, m, p[N], c[N];
data d[N];
 
void readInput(){
    cin >> n >> m;
    for(int i = 2; i <= n + m; i++)
        cin >> p[i] >> c[i];
}
 
void solve(){
    for(int i = 1; i <= n; i++){
        d[i].a = 0;
        d[i].b = 0;
    }
    for(int i = n + 1; i <= n + m; i++){
        d[i].a = 1;
        d[i].b = -c[i];
        d[i].pq.push(c[i]);
        d[i].pq.push(c[i]);
        d[p[i]] += d[i];
    }
    for(int i = n; i > 1; i--){
        while (d[i].a > 1){
            d[i].a--;
            d[i].b += d[i].pq.top();
            d[i].pq.pop();
        }
 
        ll p1 = d[i].pq.top();
        d[i].pq.pop();
        ll p0 = d[i].pq.top();
        d[i].pq.pop();
        d[i].pq.push(p0 + c[i]);
        d[i].pq.push(p1 + c[i]);
 
        d[i].b -= c[i];
        d[p[i]] += d[i];
    }
    while (d[1].a > 0){
        d[1].a--;
        d[1].b += d[1].pq.top();
        d[1].pq.pop();
    }
    cout << d[1].b;
}
 
int main(){
    readInput();
    solve();
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14464 KB Output is correct
2 Correct 9 ms 14464 KB Output is correct
3 Correct 10 ms 14464 KB Output is correct
4 Correct 10 ms 14464 KB Output is correct
5 Correct 10 ms 14464 KB Output is correct
6 Correct 10 ms 14464 KB Output is correct
7 Correct 10 ms 14464 KB Output is correct
8 Correct 10 ms 14464 KB Output is correct
9 Correct 10 ms 14464 KB Output is correct
10 Correct 10 ms 14464 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14464 KB Output is correct
2 Correct 10 ms 14388 KB Output is correct
3 Correct 10 ms 14464 KB Output is correct
4 Correct 9 ms 14464 KB Output is correct
5 Correct 10 ms 14464 KB Output is correct
6 Correct 10 ms 14464 KB Output is correct
7 Correct 9 ms 14464 KB Output is correct
8 Correct 10 ms 14464 KB Output is correct
9 Correct 10 ms 14464 KB Output is correct
10 Correct 10 ms 14464 KB Output is correct
11 Correct 10 ms 14464 KB Output is correct
12 Correct 10 ms 14464 KB Output is correct
13 Correct 10 ms 14464 KB Output is correct
14 Correct 10 ms 14464 KB Output is correct
15 Correct 10 ms 14464 KB Output is correct
16 Correct 10 ms 14464 KB Output is correct
17 Correct 10 ms 14464 KB Output is correct
18 Correct 10 ms 14464 KB Output is correct
19 Correct 10 ms 14464 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14464 KB Output is correct
2 Correct 9 ms 14464 KB Output is correct
3 Correct 10 ms 14464 KB Output is correct
4 Correct 10 ms 14464 KB Output is correct
5 Correct 10 ms 14464 KB Output is correct
6 Correct 10 ms 14464 KB Output is correct
7 Correct 10 ms 14464 KB Output is correct
8 Correct 10 ms 14464 KB Output is correct
9 Correct 10 ms 14464 KB Output is correct
10 Correct 10 ms 14464 KB Output is correct
11 Correct 9 ms 14464 KB Output is correct
12 Correct 10 ms 14388 KB Output is correct
13 Correct 10 ms 14464 KB Output is correct
14 Correct 9 ms 14464 KB Output is correct
15 Correct 10 ms 14464 KB Output is correct
16 Correct 10 ms 14464 KB Output is correct
17 Correct 9 ms 14464 KB Output is correct
18 Correct 10 ms 14464 KB Output is correct
19 Correct 10 ms 14464 KB Output is correct
20 Correct 10 ms 14464 KB Output is correct
21 Correct 10 ms 14464 KB Output is correct
22 Correct 10 ms 14464 KB Output is correct
23 Correct 10 ms 14464 KB Output is correct
24 Correct 10 ms 14464 KB Output is correct
25 Correct 10 ms 14464 KB Output is correct
26 Correct 10 ms 14464 KB Output is correct
27 Correct 10 ms 14464 KB Output is correct
28 Correct 10 ms 14464 KB Output is correct
29 Correct 10 ms 14464 KB Output is correct
30 Correct 10 ms 14464 KB Output is correct
31 Correct 13 ms 14464 KB Output is correct
32 Correct 12 ms 14464 KB Output is correct
33 Correct 13 ms 14592 KB Output is correct
34 Correct 14 ms 14592 KB Output is correct
35 Correct 15 ms 14592 KB Output is correct
36 Correct 16 ms 14592 KB Output is correct
37 Correct 17 ms 14720 KB Output is correct
38 Correct 17 ms 14720 KB Output is correct
39 Correct 18 ms 14720 KB Output is correct
40 Correct 16 ms 14464 KB Output is correct
41 Correct 16 ms 14464 KB Output is correct
42 Correct 17 ms 14464 KB Output is correct
43 Correct 18 ms 14592 KB Output is correct
44 Correct 18 ms 14712 KB Output is correct
45 Correct 17 ms 14720 KB Output is correct
46 Correct 18 ms 14848 KB Output is correct
47 Correct 17 ms 14848 KB Output is correct
48 Correct 16 ms 14848 KB Output is correct
49 Correct 17 ms 14848 KB Output is correct
50 Correct 16 ms 14720 KB Output is correct
51 Correct 16 ms 14720 KB Output is correct
52 Correct 17 ms 14720 KB Output is correct
53 Correct 17 ms 14720 KB Output is correct
54 Correct 17 ms 14848 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 14464 KB Output is correct
2 Correct 9 ms 14464 KB Output is correct
3 Correct 10 ms 14464 KB Output is correct
4 Correct 10 ms 14464 KB Output is correct
5 Correct 10 ms 14464 KB Output is correct
6 Correct 10 ms 14464 KB Output is correct
7 Correct 10 ms 14464 KB Output is correct
8 Correct 10 ms 14464 KB Output is correct
9 Correct 10 ms 14464 KB Output is correct
10 Correct 10 ms 14464 KB Output is correct
11 Correct 9 ms 14464 KB Output is correct
12 Correct 10 ms 14388 KB Output is correct
13 Correct 10 ms 14464 KB Output is correct
14 Correct 9 ms 14464 KB Output is correct
15 Correct 10 ms 14464 KB Output is correct
16 Correct 10 ms 14464 KB Output is correct
17 Correct 9 ms 14464 KB Output is correct
18 Correct 10 ms 14464 KB Output is correct
19 Correct 10 ms 14464 KB Output is correct
20 Correct 10 ms 14464 KB Output is correct
21 Correct 10 ms 14464 KB Output is correct
22 Correct 10 ms 14464 KB Output is correct
23 Correct 10 ms 14464 KB Output is correct
24 Correct 10 ms 14464 KB Output is correct
25 Correct 10 ms 14464 KB Output is correct
26 Correct 10 ms 14464 KB Output is correct
27 Correct 10 ms 14464 KB Output is correct
28 Correct 10 ms 14464 KB Output is correct
29 Correct 10 ms 14464 KB Output is correct
30 Correct 10 ms 14464 KB Output is correct
31 Correct 13 ms 14464 KB Output is correct
32 Correct 12 ms 14464 KB Output is correct
33 Correct 13 ms 14592 KB Output is correct
34 Correct 14 ms 14592 KB Output is correct
35 Correct 15 ms 14592 KB Output is correct
36 Correct 16 ms 14592 KB Output is correct
37 Correct 17 ms 14720 KB Output is correct
38 Correct 17 ms 14720 KB Output is correct
39 Correct 18 ms 14720 KB Output is correct
40 Correct 16 ms 14464 KB Output is correct
41 Correct 16 ms 14464 KB Output is correct
42 Correct 17 ms 14464 KB Output is correct
43 Correct 18 ms 14592 KB Output is correct
44 Correct 18 ms 14712 KB Output is correct
45 Correct 17 ms 14720 KB Output is correct
46 Correct 18 ms 14848 KB Output is correct
47 Correct 17 ms 14848 KB Output is correct
48 Correct 16 ms 14848 KB Output is correct
49 Correct 17 ms 14848 KB Output is correct
50 Correct 16 ms 14720 KB Output is correct
51 Correct 16 ms 14720 KB Output is correct
52 Correct 17 ms 14720 KB Output is correct
53 Correct 17 ms 14720 KB Output is correct
54 Correct 17 ms 14848 KB Output is correct
55 Correct 31 ms 15232 KB Output is correct
56 Correct 89 ms 17508 KB Output is correct
57 Correct 146 ms 19448 KB Output is correct
58 Correct 189 ms 20980 KB Output is correct
59 Correct 249 ms 23036 KB Output is correct
60 Correct 309 ms 25080 KB Output is correct
61 Correct 362 ms 27120 KB Output is correct
62 Correct 394 ms 28320 KB Output is correct
63 Correct 483 ms 30820 KB Output is correct
64 Correct 504 ms 31344 KB Output is correct
65 Correct 455 ms 21624 KB Output is correct
66 Correct 449 ms 21752 KB Output is correct
67 Correct 447 ms 21880 KB Output is correct
68 Correct 503 ms 28400 KB Output is correct
69 Correct 509 ms 29164 KB Output is correct
70 Correct 507 ms 29036 KB Output is correct
71 Correct 531 ms 44168 KB Output is correct
72 Correct 540 ms 44132 KB Output is correct
73 Correct 487 ms 40420 KB Output is correct
74 Correct 495 ms 41184 KB Output is correct
75 Correct 479 ms 39396 KB Output is correct
76 Correct 478 ms 39464 KB Output is correct
77 Correct 506 ms 39140 KB Output is correct
78 Correct 497 ms 38376 KB Output is correct
79 Correct 443 ms 36832 KB Output is correct