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Submission #684408

# Submission time Handle Problem Language Result Execution time Memory
684408 2023-01-21T06:17:33 Z PoonYaPat Fireworks (APIO16_fireworks) C++14
26 / 100
 17 ms 26580 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int n,m;
ll l[300001],r[300001],w[300001],Ymin[300001];
vector<int> adj[300001];
priority_queue<ll, vector<ll>, greater<ll>> rsq[300001];
priority_queue<ll> lsq[300001];

void dfs(int x) {
    int cnt=0;
    priority_queue<ll, vector<ll>, greater<ll>> temp;

    if (!adj[x].size()) {
        l[x]=w[x]; r[x]=w[x];
        Ymin[x]=0;
        lsq[x].push(l[x]);
        rsq[x].push(r[x]);
        return;
    }

    for (auto s : adj[x]) {
        ++cnt;
        dfs(s);

        Ymin[x]+=Ymin[s];

        if (lsq[x].size()) {
            if (l[s]>r[x]) Ymin[x]+=l[s]-r[x];
            if (r[s]<l[x]) Ymin[x]+=l[x]-r[s];
        }

        if (lsq[s].size()+rsq[s].size()>lsq[x].size()+temp.size()) swap(lsq[x],lsq[s]), swap(temp,rsq[s]);

        while (!lsq[s].empty()) {
            if (lsq[s].top()>=temp.top()) temp.push(lsq[s].top());
            else lsq[x].push(lsq[s].top());
            lsq[s].pop();
        }

        while (!rsq[s].empty()) {
            if (rsq[s].top()>=temp.top()) temp.push(rsq[s].top());
            else lsq[x].push(rsq[s].top());
            rsq[s].pop();
        }

        while (temp.size()>cnt) lsq[x].push(temp.top()), temp.pop();
        while (temp.size()<cnt) temp.push(lsq[x].top()), lsq[x].pop();

        l[x]=lsq[x].top();
        r[x]=temp.top();

    }

    l[x]=lsq[x].top()+w[x];
    r[x]=temp.top()+w[x];
    lsq[x].pop(); lsq[x].push(l[x]);
    rsq[x].push(r[x]);
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin>>n>>m;
    for (int i=2; i<=n+m; ++i) {
        int u; cin>>u>>w[i];
        adj[u].push_back(i);
    }
    dfs(1);
    cout<<Ymin[1];
}

Compilation message

fireworks.cpp: In function 'void dfs(int)':
fireworks.cpp:48:27: warning: comparison of integer expressions of different signedness: 'std::priority_queue<long long int, std::vector<long long int>, std::greater<long long int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   48 |         while (temp.size()>cnt) lsq[x].push(temp.top()), temp.pop();
      |                ~~~~~~~~~~~^~~~
fireworks.cpp:49:27: warning: comparison of integer expressions of different signedness: 'std::priority_queue<long long int, std::vector<long long int>, std::greater<long long int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   49 |         while (temp.size()<cnt) temp.push(lsq[x].top()), lsq[x].pop();
      |                ~~~~~~~~~~~^~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 26068 KB Output is correct
2 Correct 15 ms 26068 KB Output is correct
3 Correct 16 ms 26188 KB Output is correct
4 Correct 13 ms 26080 KB Output is correct
5 Correct 13 ms 26068 KB Output is correct
6 Correct 12 ms 26068 KB Output is correct
7 Correct 12 ms 26148 KB Output is correct
8 Correct 12 ms 26136 KB Output is correct
9 Correct 12 ms 26068 KB Output is correct
10 Correct 12 ms 26196 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 26180 KB Output is correct
2 Correct 12 ms 26184 KB Output is correct
3 Correct 12 ms 26120 KB Output is correct
4 Correct 14 ms 26068 KB Output is correct
5 Correct 13 ms 26068 KB Output is correct
6 Correct 15 ms 26116 KB Output is correct
7 Correct 12 ms 26152 KB Output is correct
8 Correct 13 ms 26100 KB Output is correct
9 Correct 13 ms 26092 KB Output is correct
10 Correct 12 ms 26196 KB Output is correct
11 Correct 13 ms 26136 KB Output is correct
12 Correct 14 ms 26196 KB Output is correct
13 Correct 13 ms 26196 KB Output is correct
14 Correct 12 ms 26196 KB Output is correct
15 Correct 13 ms 26216 KB Output is correct
16 Correct 13 ms 26216 KB Output is correct
17 Correct 12 ms 26152 KB Output is correct
18 Correct 12 ms 26164 KB Output is correct
19 Correct 12 ms 26220 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 26068 KB Output is correct
2 Correct 15 ms 26068 KB Output is correct
3 Correct 16 ms 26188 KB Output is correct
4 Correct 13 ms 26080 KB Output is correct
5 Correct 13 ms 26068 KB Output is correct
6 Correct 12 ms 26068 KB Output is correct
7 Correct 12 ms 26148 KB Output is correct
8 Correct 12 ms 26136 KB Output is correct
9 Correct 12 ms 26068 KB Output is correct
10 Correct 12 ms 26196 KB Output is correct
11 Correct 12 ms 26180 KB Output is correct
12 Correct 12 ms 26184 KB Output is correct
13 Correct 12 ms 26120 KB Output is correct
14 Correct 14 ms 26068 KB Output is correct
15 Correct 13 ms 26068 KB Output is correct
16 Correct 15 ms 26116 KB Output is correct
17 Correct 12 ms 26152 KB Output is correct
18 Correct 13 ms 26100 KB Output is correct
19 Correct 13 ms 26092 KB Output is correct
20 Correct 12 ms 26196 KB Output is correct
21 Correct 13 ms 26136 KB Output is correct
22 Correct 14 ms 26196 KB Output is correct
23 Correct 13 ms 26196 KB Output is correct
24 Correct 12 ms 26196 KB Output is correct
25 Correct 13 ms 26216 KB Output is correct
26 Correct 13 ms 26216 KB Output is correct
27 Correct 12 ms 26152 KB Output is correct
28 Correct 12 ms 26164 KB Output is correct
29 Correct 12 ms 26220 KB Output is correct
30 Correct 13 ms 26196 KB Output is correct
31 Correct 13 ms 26256 KB Output is correct
32 Correct 13 ms 26320 KB Output is correct
33 Correct 14 ms 26268 KB Output is correct
34 Correct 13 ms 26344 KB Output is correct
35 Correct 17 ms 26440 KB Output is correct
36 Correct 16 ms 26452 KB Output is correct
37 Incorrect 15 ms 26580 KB Output isn't correct
38 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 26068 KB Output is correct
2 Correct 15 ms 26068 KB Output is correct
3 Correct 16 ms 26188 KB Output is correct
4 Correct 13 ms 26080 KB Output is correct
5 Correct 13 ms 26068 KB Output is correct
6 Correct 12 ms 26068 KB Output is correct
7 Correct 12 ms 26148 KB Output is correct
8 Correct 12 ms 26136 KB Output is correct
9 Correct 12 ms 26068 KB Output is correct
10 Correct 12 ms 26196 KB Output is correct
11 Correct 12 ms 26180 KB Output is correct
12 Correct 12 ms 26184 KB Output is correct
13 Correct 12 ms 26120 KB Output is correct
14 Correct 14 ms 26068 KB Output is correct
15 Correct 13 ms 26068 KB Output is correct
16 Correct 15 ms 26116 KB Output is correct
17 Correct 12 ms 26152 KB Output is correct
18 Correct 13 ms 26100 KB Output is correct
19 Correct 13 ms 26092 KB Output is correct
20 Correct 12 ms 26196 KB Output is correct
21 Correct 13 ms 26136 KB Output is correct
22 Correct 14 ms 26196 KB Output is correct
23 Correct 13 ms 26196 KB Output is correct
24 Correct 12 ms 26196 KB Output is correct
25 Correct 13 ms 26216 KB Output is correct
26 Correct 13 ms 26216 KB Output is correct
27 Correct 12 ms 26152 KB Output is correct
28 Correct 12 ms 26164 KB Output is correct
29 Correct 12 ms 26220 KB Output is correct
30 Correct 13 ms 26196 KB Output is correct
31 Correct 13 ms 26256 KB Output is correct
32 Correct 13 ms 26320 KB Output is correct
33 Correct 14 ms 26268 KB Output is correct
34 Correct 13 ms 26344 KB Output is correct
35 Correct 17 ms 26440 KB Output is correct
36 Correct 16 ms 26452 KB Output is correct
37 Incorrect 15 ms 26580 KB Output isn't correct
38 Halted 0 ms 0 KB -