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Submission #647250

# Submission time Handle Problem Language Result Execution time Memory
647250 2022-10-02T04:01:36 Z atom Fireworks (APIO16_fireworks) C++17
19 / 100
 11 ms 16780 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;    
const int N=300010, M = 1e9 + 7;

int n,m,a,b,plague[N],root[N],ans;

vector<int> edges[N];

priority_queue<int> q[N];

void dfs(int v){

	root[v]=v;

	if(v>n){

		q[v].push(plague[v]); q[v].push(plague[v]);

		return;

	}

	for(auto i:edges[v]){

		dfs(i);

		if(q[root[i]].size() > q[root[v]].size()) root[v]=root[i];

	}

	for(auto i:edges[v]) if(root[i]!=root[v]){

		while(q[root[i]].size()){

			q[root[v]].push(q[root[i]].top()); 
			q[root[i]].pop();

		}

	}
	for (int i = 1; i < (int) edges[v].size(); i++) q[root[v]].pop();

	a=q[root[v]].top(); q[root[v]].pop(); b=q[root[v]].top(); q[root[v]].pop();

	a+=plague[v]; b+=plague[v]; q[root[v]].push(b); q[root[v]].push(a);

}


int main(){

	ios_base::sync_with_stdio(0); cin.tie(0);

	cin >> n >> m;
	m += n;
	for (int i = 2; i <= m; i++){

		cin>>a>>b;

		edges[a].push_back(i);

		plague[i]=b; ans+=b;

	}

	dfs(1);

	q[root[1]].pop(); 
	a=q[root[1]].top(); 
	q[root[1]].push(0); 
	b=0;

	while(q[root[1]].size() > 0){

		ans-=(a - q[root[1]].top()) * b;
		b++;
		a=q[root[1]].top(); 
		q[root[1]].pop();

	}

	cout<<ans << "\n";

	return 0;

}

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 9 ms 16724 KB Output is correct
3 Incorrect 8 ms 16732 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16688 KB Output is correct
2 Correct 9 ms 16656 KB Output is correct
3 Correct 8 ms 16708 KB Output is correct
4 Correct 9 ms 16724 KB Output is correct
5 Correct 9 ms 16724 KB Output is correct
6 Correct 11 ms 16724 KB Output is correct
7 Correct 10 ms 16780 KB Output is correct
8 Correct 9 ms 16696 KB Output is correct
9 Correct 9 ms 16724 KB Output is correct
10 Correct 9 ms 16724 KB Output is correct
11 Correct 8 ms 16724 KB Output is correct
12 Correct 9 ms 16692 KB Output is correct
13 Correct 9 ms 16764 KB Output is correct
14 Correct 8 ms 16724 KB Output is correct
15 Correct 9 ms 16728 KB Output is correct
16 Correct 8 ms 16724 KB Output is correct
17 Correct 9 ms 16724 KB Output is correct
18 Correct 8 ms 16724 KB Output is correct
19 Correct 9 ms 16744 KB Output is correct

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 9 ms 16724 KB Output is correct
3 Incorrect 8 ms 16732 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16724 KB Output is correct
2 Correct 9 ms 16724 KB Output is correct
3 Incorrect 8 ms 16732 KB Output isn't correct
4 Halted 0 ms 0 KB -