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Submission #479926

# Submission time Handle Problem Language Result Execution time Memory
479926 2021-10-14T00:12:22 Z sam571128 Fireworks (APIO16_fireworks) C++17
100 / 100
 355 ms 75000 KB 
#include <bits/stdc++.h>
#include <bits/extc++.h>

#define int long long
#define fastio ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

using namespace std;

const int N = 6e5+5;
vector<pair<int,int>> adj[N];

int dp[N], to[N], deg[N], ans = 0;

__gnu_pbds::priority_queue<int> pq[N];

void dfs(int u, int p){
    for(auto [v,w] : adj[u]){
        if(v == p) continue;
        dfs(v,u);
        pq[u].join(pq[v]);
    }

    if(u==1) return;

    int l = 0, r = 0;

    if(deg[u]){
        while(--deg[u]){
            pq[u].pop();
        }

        r = pq[u].top();
        pq[u].pop();

        l = pq[u].top();
        pq[u].pop();
    }

    pq[u].push(l+to[u]);
    pq[u].push(r+to[u]);
}

signed main(){
    fastio
    int n,m;
    cin >> n >> m;
    for(int i = 2;i <= n;i++){
        int p,x;
        cin >> p >> x;
        to[i] = x;
        adj[p].push_back({i,x});
        adj[i].push_back({p,x});
        deg[p]++;
        ans += x;
    }
    for(int i = 1;i <= m;i++){
        int p,x;
        cin >> p >> x;
        to[n+i] = x;
        adj[p].push_back({i+n,x});
        adj[i+n].push_back({p,x});
        deg[p]++;
        ans += x;
    }

    dfs(1,-1);

    while(deg[1]--){
        pq[1].pop();
    }

    while(!pq[1].empty()){
        ans -= pq[1].top();
        pq[1].pop();
    }


    cout << ans << "\n";
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 28492 KB Output is correct
2 Correct 16 ms 28408 KB Output is correct
3 Correct 16 ms 28492 KB Output is correct
4 Correct 15 ms 28432 KB Output is correct
5 Correct 18 ms 28492 KB Output is correct
6 Correct 16 ms 28492 KB Output is correct
7 Correct 16 ms 28492 KB Output is correct
8 Correct 17 ms 28528 KB Output is correct
9 Correct 16 ms 28528 KB Output is correct
10 Correct 18 ms 28468 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 28480 KB Output is correct
2 Correct 15 ms 28492 KB Output is correct
3 Correct 16 ms 28492 KB Output is correct
4 Correct 19 ms 28408 KB Output is correct
5 Correct 20 ms 28464 KB Output is correct
6 Correct 21 ms 28428 KB Output is correct
7 Correct 17 ms 28492 KB Output is correct
8 Correct 20 ms 28536 KB Output is correct
9 Correct 16 ms 28484 KB Output is correct
10 Correct 16 ms 28472 KB Output is correct
11 Correct 16 ms 28492 KB Output is correct
12 Correct 17 ms 28452 KB Output is correct
13 Correct 16 ms 28436 KB Output is correct
14 Correct 16 ms 28540 KB Output is correct
15 Correct 17 ms 28532 KB Output is correct
16 Correct 16 ms 28440 KB Output is correct
17 Correct 16 ms 28492 KB Output is correct
18 Correct 17 ms 28532 KB Output is correct
19 Correct 17 ms 28428 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 28492 KB Output is correct
2 Correct 16 ms 28408 KB Output is correct
3 Correct 16 ms 28492 KB Output is correct
4 Correct 15 ms 28432 KB Output is correct
5 Correct 18 ms 28492 KB Output is correct
6 Correct 16 ms 28492 KB Output is correct
7 Correct 16 ms 28492 KB Output is correct
8 Correct 17 ms 28528 KB Output is correct
9 Correct 16 ms 28528 KB Output is correct
10 Correct 18 ms 28468 KB Output is correct
11 Correct 17 ms 28480 KB Output is correct
12 Correct 15 ms 28492 KB Output is correct
13 Correct 16 ms 28492 KB Output is correct
14 Correct 19 ms 28408 KB Output is correct
15 Correct 20 ms 28464 KB Output is correct
16 Correct 21 ms 28428 KB Output is correct
17 Correct 17 ms 28492 KB Output is correct
18 Correct 20 ms 28536 KB Output is correct
19 Correct 16 ms 28484 KB Output is correct
20 Correct 16 ms 28472 KB Output is correct
21 Correct 16 ms 28492 KB Output is correct
22 Correct 17 ms 28452 KB Output is correct
23 Correct 16 ms 28436 KB Output is correct
24 Correct 16 ms 28540 KB Output is correct
25 Correct 17 ms 28532 KB Output is correct
26 Correct 16 ms 28440 KB Output is correct
27 Correct 16 ms 28492 KB Output is correct
28 Correct 17 ms 28532 KB Output is correct
29 Correct 17 ms 28428 KB Output is correct
30 Correct 16 ms 28516 KB Output is correct
31 Correct 27 ms 28484 KB Output is correct
32 Correct 19 ms 28620 KB Output is correct
33 Correct 17 ms 28632 KB Output is correct
34 Correct 18 ms 28748 KB Output is correct
35 Correct 19 ms 28864 KB Output is correct
36 Correct 20 ms 28896 KB Output is correct
37 Correct 20 ms 28900 KB Output is correct
38 Correct 21 ms 28892 KB Output is correct
39 Correct 19 ms 28876 KB Output is correct
40 Correct 19 ms 29284 KB Output is correct
41 Correct 19 ms 29276 KB Output is correct
42 Correct 18 ms 28904 KB Output is correct
43 Correct 23 ms 29116 KB Output is correct
44 Correct 19 ms 29088 KB Output is correct
45 Correct 20 ms 29016 KB Output is correct
46 Correct 21 ms 29132 KB Output is correct
47 Correct 18 ms 29040 KB Output is correct
48 Correct 20 ms 29004 KB Output is correct
49 Correct 19 ms 29076 KB Output is correct
50 Correct 19 ms 29008 KB Output is correct
51 Correct 24 ms 29024 KB Output is correct
52 Correct 19 ms 29004 KB Output is correct
53 Correct 18 ms 29004 KB Output is correct
54 Correct 20 ms 29264 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 28492 KB Output is correct
2 Correct 16 ms 28408 KB Output is correct
3 Correct 16 ms 28492 KB Output is correct
4 Correct 15 ms 28432 KB Output is correct
5 Correct 18 ms 28492 KB Output is correct
6 Correct 16 ms 28492 KB Output is correct
7 Correct 16 ms 28492 KB Output is correct
8 Correct 17 ms 28528 KB Output is correct
9 Correct 16 ms 28528 KB Output is correct
10 Correct 18 ms 28468 KB Output is correct
11 Correct 17 ms 28480 KB Output is correct
12 Correct 15 ms 28492 KB Output is correct
13 Correct 16 ms 28492 KB Output is correct
14 Correct 19 ms 28408 KB Output is correct
15 Correct 20 ms 28464 KB Output is correct
16 Correct 21 ms 28428 KB Output is correct
17 Correct 17 ms 28492 KB Output is correct
18 Correct 20 ms 28536 KB Output is correct
19 Correct 16 ms 28484 KB Output is correct
20 Correct 16 ms 28472 KB Output is correct
21 Correct 16 ms 28492 KB Output is correct
22 Correct 17 ms 28452 KB Output is correct
23 Correct 16 ms 28436 KB Output is correct
24 Correct 16 ms 28540 KB Output is correct
25 Correct 17 ms 28532 KB Output is correct
26 Correct 16 ms 28440 KB Output is correct
27 Correct 16 ms 28492 KB Output is correct
28 Correct 17 ms 28532 KB Output is correct
29 Correct 17 ms 28428 KB Output is correct
30 Correct 16 ms 28516 KB Output is correct
31 Correct 27 ms 28484 KB Output is correct
32 Correct 19 ms 28620 KB Output is correct
33 Correct 17 ms 28632 KB Output is correct
34 Correct 18 ms 28748 KB Output is correct
35 Correct 19 ms 28864 KB Output is correct
36 Correct 20 ms 28896 KB Output is correct
37 Correct 20 ms 28900 KB Output is correct
38 Correct 21 ms 28892 KB Output is correct
39 Correct 19 ms 28876 KB Output is correct
40 Correct 19 ms 29284 KB Output is correct
41 Correct 19 ms 29276 KB Output is correct
42 Correct 18 ms 28904 KB Output is correct
43 Correct 23 ms 29116 KB Output is correct
44 Correct 19 ms 29088 KB Output is correct
45 Correct 20 ms 29016 KB Output is correct
46 Correct 21 ms 29132 KB Output is correct
47 Correct 18 ms 29040 KB Output is correct
48 Correct 20 ms 29004 KB Output is correct
49 Correct 19 ms 29076 KB Output is correct
50 Correct 19 ms 29008 KB Output is correct
51 Correct 24 ms 29024 KB Output is correct
52 Correct 19 ms 29004 KB Output is correct
53 Correct 18 ms 29004 KB Output is correct
54 Correct 20 ms 29264 KB Output is correct
55 Correct 24 ms 29772 KB Output is correct
56 Correct 46 ms 33220 KB Output is correct
57 Correct 84 ms 36640 KB Output is correct
58 Correct 96 ms 38780 KB Output is correct
59 Correct 139 ms 42036 KB Output is correct
60 Correct 178 ms 44868 KB Output is correct
61 Correct 199 ms 46840 KB Output is correct
62 Correct 211 ms 48528 KB Output is correct
63 Correct 282 ms 51908 KB Output is correct
64 Correct 285 ms 53144 KB Output is correct
65 Correct 146 ms 72616 KB Output is correct
66 Correct 141 ms 72680 KB Output is correct
67 Correct 179 ms 49276 KB Output is correct
68 Correct 197 ms 69236 KB Output is correct
69 Correct 263 ms 67176 KB Output is correct
70 Correct 263 ms 67236 KB Output is correct
71 Correct 263 ms 62948 KB Output is correct
72 Correct 260 ms 62916 KB Output is correct
73 Correct 273 ms 62292 KB Output is correct
74 Correct 288 ms 62348 KB Output is correct
75 Correct 300 ms 61420 KB Output is correct
76 Correct 301 ms 61624 KB Output is correct
77 Correct 332 ms 60540 KB Output is correct
78 Correct 345 ms 61628 KB Output is correct
79 Correct 355 ms 75000 KB Output is correct