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답안 #386054

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
386054 2021-04-05T14:03:21 Z Jasiekstrz Fireworks (APIO16_fireworks) C++17
26 / 100
 12 ms 14572 KB 
#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
const int N=6e5;
int p[N+10];
int c[N+10];
int leaves[N+10];
int mx_son[N+10];
vector<pair<int,int>> e[N+10];
void count_leaves(int x)
{
	if(e[x].empty())
	{
		leaves[x]=1;
		return;
	}
	leaves[x]=0;
	mx_son[x]=0;
	for(auto v:e[x])
	{
		count_leaves(v.fi);
		if(leaves[v.fi]>leaves[mx_son[x]])
			mx_son[x]=v.fi;
		leaves[x]+=leaves[v.fi];
	}
	return;
}
void add_edge(multiset<long long> &st,int cc)
{
	if(st.empty())
	{
		st.insert(cc);
		st.insert(cc);
		return;
	}
	int init_val[2];
	for(int i:{0,1})
	{
		init_val[i]=*prev(st.end());
		st.erase(prev(st.end()));
	}
	for(int i:{0,1})
		st.insert(init_val[i]+cc);
	return;
}
void solve(int x,multiset<long long> &st)
{
	multiset<long long> tmp;
	for(auto v:e[x])
	{
		if(v.fi==mx_son[x])
		{
			solve(v.fi,st);
			add_edge(st,v.se);
			break;
		}
	}
	for(auto v:e[x])
	{
		if(v.fi==mx_son[x])
			continue;
		tmp.clear();
		solve(v.fi,tmp);
		add_edge(tmp,v.se);
		for(auto vt:tmp)
			st.insert(vt);
	}
	while(st.size()>leaves[x]+1)
		st.erase(prev(st.end()));
	return;
}
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int n,m;
	long long ans=0;
	cin>>n>>m;
	for(int i=2;i<=n+m;i++)
	{
		cin>>p[i]>>c[i];
		e[p[i]].push_back({i,c[i]});
		ans+=c[i];
	}
	count_leaves(1);
	multiset<long long> ans_set;
	solve(1,ans_set);
	int w=-m,prv=0;
	for(auto v:ans_set)
	{
		ans+=(long long)w*(v-prv);
		prv=v;
		w++;
	}
	cout<<ans<<"\n";
	return 0;
}

Compilation message

fireworks.cpp: In function 'void solve(int, std::multiset<long long int>&)':
fireworks.cpp:69:17: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   69 |  while(st.size()>leaves[x]+1)
      |        ~~~~~~~~~^~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 14444 KB Output is correct
2 Correct 11 ms 14444 KB Output is correct
3 Correct 11 ms 14444 KB Output is correct
4 Correct 11 ms 14444 KB Output is correct
5 Correct 11 ms 14444 KB Output is correct
6 Correct 11 ms 14444 KB Output is correct
7 Correct 11 ms 14444 KB Output is correct
8 Correct 12 ms 14444 KB Output is correct
9 Correct 11 ms 14444 KB Output is correct
10 Correct 11 ms 14444 KB Output is correct

Subtask #2
19.0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 14464 KB Output is correct
2 Correct 11 ms 14572 KB Output is correct
3 Correct 11 ms 14444 KB Output is correct
4 Correct 11 ms 14444 KB Output is correct
5 Correct 11 ms 14444 KB Output is correct
6 Correct 12 ms 14572 KB Output is correct
7 Correct 12 ms 14444 KB Output is correct
8 Correct 12 ms 14444 KB Output is correct
9 Correct 12 ms 14444 KB Output is correct
10 Correct 11 ms 14444 KB Output is correct
11 Correct 11 ms 14444 KB Output is correct
12 Correct 11 ms 14444 KB Output is correct
13 Correct 11 ms 14444 KB Output is correct
14 Correct 11 ms 14572 KB Output is correct
15 Correct 11 ms 14444 KB Output is correct
16 Correct 11 ms 14444 KB Output is correct
17 Correct 11 ms 14444 KB Output is correct
18 Correct 11 ms 14444 KB Output is correct
19 Correct 11 ms 14444 KB Output is correct

Subtask #3
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 14444 KB Output is correct
2 Correct 11 ms 14444 KB Output is correct
3 Correct 11 ms 14444 KB Output is correct
4 Correct 11 ms 14444 KB Output is correct
5 Correct 11 ms 14444 KB Output is correct
6 Correct 11 ms 14444 KB Output is correct
7 Correct 11 ms 14444 KB Output is correct
8 Correct 12 ms 14444 KB Output is correct
9 Correct 11 ms 14444 KB Output is correct
10 Correct 11 ms 14444 KB Output is correct
11 Correct 11 ms 14464 KB Output is correct
12 Correct 11 ms 14572 KB Output is correct
13 Correct 11 ms 14444 KB Output is correct
14 Correct 11 ms 14444 KB Output is correct
15 Correct 11 ms 14444 KB Output is correct
16 Correct 12 ms 14572 KB Output is correct
17 Correct 12 ms 14444 KB Output is correct
18 Correct 12 ms 14444 KB Output is correct
19 Correct 12 ms 14444 KB Output is correct
20 Correct 11 ms 14444 KB Output is correct
21 Correct 11 ms 14444 KB Output is correct
22 Correct 11 ms 14444 KB Output is correct
23 Correct 11 ms 14444 KB Output is correct
24 Correct 11 ms 14572 KB Output is correct
25 Correct 11 ms 14444 KB Output is correct
26 Correct 11 ms 14444 KB Output is correct
27 Correct 11 ms 14444 KB Output is correct
28 Correct 11 ms 14444 KB Output is correct
29 Correct 11 ms 14444 KB Output is correct
30 Incorrect 11 ms 14444 KB Output isn't correct
31 Halted 0 ms 0 KB -

Subtask #4
0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 14444 KB Output is correct
2 Correct 11 ms 14444 KB Output is correct
3 Correct 11 ms 14444 KB Output is correct
4 Correct 11 ms 14444 KB Output is correct
5 Correct 11 ms 14444 KB Output is correct
6 Correct 11 ms 14444 KB Output is correct
7 Correct 11 ms 14444 KB Output is correct
8 Correct 12 ms 14444 KB Output is correct
9 Correct 11 ms 14444 KB Output is correct
10 Correct 11 ms 14444 KB Output is correct
11 Correct 11 ms 14464 KB Output is correct
12 Correct 11 ms 14572 KB Output is correct
13 Correct 11 ms 14444 KB Output is correct
14 Correct 11 ms 14444 KB Output is correct
15 Correct 11 ms 14444 KB Output is correct
16 Correct 12 ms 14572 KB Output is correct
17 Correct 12 ms 14444 KB Output is correct
18 Correct 12 ms 14444 KB Output is correct
19 Correct 12 ms 14444 KB Output is correct
20 Correct 11 ms 14444 KB Output is correct
21 Correct 11 ms 14444 KB Output is correct
22 Correct 11 ms 14444 KB Output is correct
23 Correct 11 ms 14444 KB Output is correct
24 Correct 11 ms 14572 KB Output is correct
25 Correct 11 ms 14444 KB Output is correct
26 Correct 11 ms 14444 KB Output is correct
27 Correct 11 ms 14444 KB Output is correct
28 Correct 11 ms 14444 KB Output is correct
29 Correct 11 ms 14444 KB Output is correct
30 Incorrect 11 ms 14444 KB Output isn't correct
31 Halted 0 ms 0 KB -