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Submission #386057

# Submission time Handle Problem Language Result Execution time Memory
386057 2021-04-05T14:10:21 Z Jasiekstrz Fireworks (APIO16_fireworks) C++17
100 / 100
 460 ms 73452 KB 
#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
const int N=3e5;
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;
	}
	long long 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);
	long long w=-m,prv=0;
	for(auto v:ans_set)
	{
		ans+=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

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7404 KB Output is correct
2 Correct 6 ms 7404 KB Output is correct
3 Correct 6 ms 7404 KB Output is correct
4 Correct 6 ms 7424 KB Output is correct
5 Correct 6 ms 7404 KB Output is correct
6 Correct 6 ms 7404 KB Output is correct
7 Correct 6 ms 7404 KB Output is correct
8 Correct 6 ms 7404 KB Output is correct
9 Correct 5 ms 7404 KB Output is correct
10 Correct 6 ms 7404 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7404 KB Output is correct
2 Correct 6 ms 7404 KB Output is correct
3 Correct 6 ms 7424 KB Output is correct
4 Correct 6 ms 7404 KB Output is correct
5 Correct 6 ms 7404 KB Output is correct
6 Correct 6 ms 7404 KB Output is correct
7 Correct 6 ms 7404 KB Output is correct
8 Correct 6 ms 7404 KB Output is correct
9 Correct 7 ms 7404 KB Output is correct
10 Correct 6 ms 7404 KB Output is correct
11 Correct 6 ms 7404 KB Output is correct
12 Correct 6 ms 7404 KB Output is correct
13 Correct 6 ms 7404 KB Output is correct
14 Correct 6 ms 7404 KB Output is correct
15 Correct 6 ms 7404 KB Output is correct
16 Correct 6 ms 7404 KB Output is correct
17 Correct 6 ms 7404 KB Output is correct
18 Correct 6 ms 7404 KB Output is correct
19 Correct 6 ms 7404 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7404 KB Output is correct
2 Correct 6 ms 7404 KB Output is correct
3 Correct 6 ms 7404 KB Output is correct
4 Correct 6 ms 7424 KB Output is correct
5 Correct 6 ms 7404 KB Output is correct
6 Correct 6 ms 7404 KB Output is correct
7 Correct 6 ms 7404 KB Output is correct
8 Correct 6 ms 7404 KB Output is correct
9 Correct 5 ms 7404 KB Output is correct
10 Correct 6 ms 7404 KB Output is correct
11 Correct 6 ms 7404 KB Output is correct
12 Correct 6 ms 7404 KB Output is correct
13 Correct 6 ms 7424 KB Output is correct
14 Correct 6 ms 7404 KB Output is correct
15 Correct 6 ms 7404 KB Output is correct
16 Correct 6 ms 7404 KB Output is correct
17 Correct 6 ms 7404 KB Output is correct
18 Correct 6 ms 7404 KB Output is correct
19 Correct 7 ms 7404 KB Output is correct
20 Correct 6 ms 7404 KB Output is correct
21 Correct 6 ms 7404 KB Output is correct
22 Correct 6 ms 7404 KB Output is correct
23 Correct 6 ms 7404 KB Output is correct
24 Correct 6 ms 7404 KB Output is correct
25 Correct 6 ms 7404 KB Output is correct
26 Correct 6 ms 7404 KB Output is correct
27 Correct 6 ms 7404 KB Output is correct
28 Correct 6 ms 7404 KB Output is correct
29 Correct 6 ms 7404 KB Output is correct
30 Correct 6 ms 7404 KB Output is correct
31 Correct 7 ms 7404 KB Output is correct
32 Correct 7 ms 7532 KB Output is correct
33 Correct 7 ms 7532 KB Output is correct
34 Correct 8 ms 7532 KB Output is correct
35 Correct 8 ms 7660 KB Output is correct
36 Correct 8 ms 7660 KB Output is correct
37 Correct 9 ms 7680 KB Output is correct
38 Correct 10 ms 7660 KB Output is correct
39 Correct 9 ms 7660 KB Output is correct
40 Correct 8 ms 8556 KB Output is correct
41 Correct 9 ms 8556 KB Output is correct
42 Correct 8 ms 7660 KB Output is correct
43 Correct 9 ms 8172 KB Output is correct
44 Correct 9 ms 8044 KB Output is correct
45 Correct 9 ms 8044 KB Output is correct
46 Correct 10 ms 7788 KB Output is correct
47 Correct 10 ms 7788 KB Output is correct
48 Correct 9 ms 7788 KB Output is correct
49 Correct 10 ms 7788 KB Output is correct
50 Correct 9 ms 7788 KB Output is correct
51 Correct 9 ms 7788 KB Output is correct
52 Correct 9 ms 7788 KB Output is correct
53 Correct 9 ms 7788 KB Output is correct
54 Correct 10 ms 8044 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7404 KB Output is correct
2 Correct 6 ms 7404 KB Output is correct
3 Correct 6 ms 7404 KB Output is correct
4 Correct 6 ms 7424 KB Output is correct
5 Correct 6 ms 7404 KB Output is correct
6 Correct 6 ms 7404 KB Output is correct
7 Correct 6 ms 7404 KB Output is correct
8 Correct 6 ms 7404 KB Output is correct
9 Correct 5 ms 7404 KB Output is correct
10 Correct 6 ms 7404 KB Output is correct
11 Correct 6 ms 7404 KB Output is correct
12 Correct 6 ms 7404 KB Output is correct
13 Correct 6 ms 7424 KB Output is correct
14 Correct 6 ms 7404 KB Output is correct
15 Correct 6 ms 7404 KB Output is correct
16 Correct 6 ms 7404 KB Output is correct
17 Correct 6 ms 7404 KB Output is correct
18 Correct 6 ms 7404 KB Output is correct
19 Correct 7 ms 7404 KB Output is correct
20 Correct 6 ms 7404 KB Output is correct
21 Correct 6 ms 7404 KB Output is correct
22 Correct 6 ms 7404 KB Output is correct
23 Correct 6 ms 7404 KB Output is correct
24 Correct 6 ms 7404 KB Output is correct
25 Correct 6 ms 7404 KB Output is correct
26 Correct 6 ms 7404 KB Output is correct
27 Correct 6 ms 7404 KB Output is correct
28 Correct 6 ms 7404 KB Output is correct
29 Correct 6 ms 7404 KB Output is correct
30 Correct 6 ms 7404 KB Output is correct
31 Correct 7 ms 7404 KB Output is correct
32 Correct 7 ms 7532 KB Output is correct
33 Correct 7 ms 7532 KB Output is correct
34 Correct 8 ms 7532 KB Output is correct
35 Correct 8 ms 7660 KB Output is correct
36 Correct 8 ms 7660 KB Output is correct
37 Correct 9 ms 7680 KB Output is correct
38 Correct 10 ms 7660 KB Output is correct
39 Correct 9 ms 7660 KB Output is correct
40 Correct 8 ms 8556 KB Output is correct
41 Correct 9 ms 8556 KB Output is correct
42 Correct 8 ms 7660 KB Output is correct
43 Correct 9 ms 8172 KB Output is correct
44 Correct 9 ms 8044 KB Output is correct
45 Correct 9 ms 8044 KB Output is correct
46 Correct 10 ms 7788 KB Output is correct
47 Correct 10 ms 7788 KB Output is correct
48 Correct 9 ms 7788 KB Output is correct
49 Correct 10 ms 7788 KB Output is correct
50 Correct 9 ms 7788 KB Output is correct
51 Correct 9 ms 7788 KB Output is correct
52 Correct 9 ms 7788 KB Output is correct
53 Correct 9 ms 7788 KB Output is correct
54 Correct 10 ms 8044 KB Output is correct
55 Correct 15 ms 8428 KB Output is correct
56 Correct 44 ms 10604 KB Output is correct
57 Correct 84 ms 12524 KB Output is correct
58 Correct 103 ms 14060 KB Output is correct
59 Correct 139 ms 16364 KB Output is correct
60 Correct 189 ms 17900 KB Output is correct
61 Correct 215 ms 19692 KB Output is correct
62 Correct 252 ms 21228 KB Output is correct
63 Correct 321 ms 23444 KB Output is correct
64 Correct 318 ms 23400 KB Output is correct
65 Correct 167 ms 73452 KB Output is correct
66 Correct 172 ms 73452 KB Output is correct
67 Correct 176 ms 21868 KB Output is correct
68 Correct 233 ms 49376 KB Output is correct
69 Correct 275 ms 45932 KB Output is correct
70 Correct 279 ms 45804 KB Output is correct
71 Correct 351 ms 29036 KB Output is correct
72 Correct 353 ms 29164 KB Output is correct
73 Correct 384 ms 28908 KB Output is correct
74 Correct 377 ms 28732 KB Output is correct
75 Correct 380 ms 28396 KB Output is correct
76 Correct 386 ms 28376 KB Output is correct
77 Correct 406 ms 28008 KB Output is correct
78 Correct 460 ms 28908 KB Output is correct
79 Correct 455 ms 42076 KB Output is correct