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Submission #244918

# Submission time Handle Problem Language Result Execution time Memory
244918 2020-07-05T09:27:04 Z Red_Inside Fireworks (APIO16_fireworks) C++17
100 / 100
 584 ms 70904 KB 
#include <bits/stdc++.h>
#include <random>

#include <ext/pb_ds/assoc_container.hpp> 
#include <ext/pb_ds/tree_policy.hpp> 
using namespace __gnu_pbds; 
//tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update> 

#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4")

#define ll long long
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define o cout<<"BUG"<<endl;
#define	IOS ios_base::sync_with_stdio(0);
#define en "\n"
#define FOR(i, j, n) for(int j = i; j < n; ++j)
#define forn(i, j, n) for(int j = i; j <= n; ++j)
#define nfor(i, j, n) for(int j = n; j >= i; --j)
#define sortv(vv) sort(vv.begin(), vv.end())
#define all(v) v.begin(), v.end()
#define ld long double
#define ull unsigned long long

//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
using namespace std;
const ll maxn=3e5+100,inf=1e9,LOG=23,mod=1e9+7;
ll block = 500, timer = 0;
const ld EPS = 1e-7;

#define bt(i) (1 << (i))
#define int ll
#define y1 yy
//#define double long double
#define pii pair <int, int>

int n, m, a[maxn], b[maxn], c[maxn];
multiset <int> st[maxn];
vector <int> edge[maxn];

void dfs(int v)
{
	if(edge[v].size() == 0)
	{
		st[v].insert(c[v]);
		st[v].insert(c[v]);
		a[v] = 1;
		b[v] = -c[v];
		/*cout << "V " << v << "  - ";
		for(auto i : st[v])
		{
			cout << i << " ";
		}
		cout << "  " << a[v] << " " << b[v] << endl;*/
		return;
	}
	for(auto to : edge[v])
	{
		dfs(to);
		if(st[to].size() > st[v].size()) swap(st[v], st[to]);
		while(st[to].size())
		{
			st[v].insert(*st[to].begin());
			st[to].erase(st[to].begin());
		}
		a[v] += a[to];
		b[v] += b[to];
	}
	while(a[v] > 1)
	{
		auto it = st[v].end();
		it--;
		b[v] += *it;
		st[v].erase(it);
		a[v]--;
	}
	auto it = st[v].end();
	it--;
	int c1 = *it;
	it--;
	int c2 = *it;
	st[v].erase(st[v].find(c1));
	st[v].insert(c1 + c[v]);
	st[v].erase(st[v].find(c2));
	st[v].insert(c2 + c[v]);
	b[v] -= c[v];
	/*cout << "V " << v << "  - ";
	for(auto i : st[v])
	{
		cout << i << " ";
	}
	cout << "  " << a[v] << " " << b[v] << endl;*/
}

main()
{
	IOS
	cin >> n >> m;
	n += m;
	forn(2, i, n)
	{
		int p;
		cin >> p >> c[i];
		edge[p].pb(i);
	}
	dfs(1);
	while(a[1] > 0)
	{
		auto it = st[1].end();
		it--;
		a[1]--;
		b[1] += *it;
		st[1].erase(it);
	}
	cout << b[1] + a[1] * (st[1].size() ? (*st[1].rbegin()) : 0);
}

Compilation message

fireworks.cpp:9:0: warning: ignoring #pragma comment  [-Wunknown-pragmas]
 #pragma comment(linker, "/stack:200000000")
 
fireworks.cpp:99:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 21504 KB Output is correct
2 Correct 17 ms 21504 KB Output is correct
3 Correct 17 ms 21504 KB Output is correct
4 Correct 16 ms 21504 KB Output is correct
5 Correct 17 ms 21504 KB Output is correct
6 Correct 17 ms 21504 KB Output is correct
7 Correct 16 ms 21504 KB Output is correct
8 Correct 16 ms 21504 KB Output is correct
9 Correct 17 ms 21504 KB Output is correct
10 Correct 16 ms 21504 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 21504 KB Output is correct
2 Correct 19 ms 21536 KB Output is correct
3 Correct 16 ms 21504 KB Output is correct
4 Correct 16 ms 21504 KB Output is correct
5 Correct 16 ms 21504 KB Output is correct
6 Correct 16 ms 21504 KB Output is correct
7 Correct 18 ms 21504 KB Output is correct
8 Correct 16 ms 21504 KB Output is correct
9 Correct 17 ms 21504 KB Output is correct
10 Correct 17 ms 21504 KB Output is correct
11 Correct 16 ms 21504 KB Output is correct
12 Correct 23 ms 21504 KB Output is correct
13 Correct 16 ms 21504 KB Output is correct
14 Correct 16 ms 21504 KB Output is correct
15 Correct 16 ms 21504 KB Output is correct
16 Correct 18 ms 21504 KB Output is correct
17 Correct 16 ms 21504 KB Output is correct
18 Correct 18 ms 21504 KB Output is correct
19 Correct 16 ms 21504 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 21504 KB Output is correct
2 Correct 17 ms 21504 KB Output is correct
3 Correct 17 ms 21504 KB Output is correct
4 Correct 16 ms 21504 KB Output is correct
5 Correct 17 ms 21504 KB Output is correct
6 Correct 17 ms 21504 KB Output is correct
7 Correct 16 ms 21504 KB Output is correct
8 Correct 16 ms 21504 KB Output is correct
9 Correct 17 ms 21504 KB Output is correct
10 Correct 16 ms 21504 KB Output is correct
11 Correct 16 ms 21504 KB Output is correct
12 Correct 19 ms 21536 KB Output is correct
13 Correct 16 ms 21504 KB Output is correct
14 Correct 16 ms 21504 KB Output is correct
15 Correct 16 ms 21504 KB Output is correct
16 Correct 16 ms 21504 KB Output is correct
17 Correct 18 ms 21504 KB Output is correct
18 Correct 16 ms 21504 KB Output is correct
19 Correct 17 ms 21504 KB Output is correct
20 Correct 17 ms 21504 KB Output is correct
21 Correct 16 ms 21504 KB Output is correct
22 Correct 23 ms 21504 KB Output is correct
23 Correct 16 ms 21504 KB Output is correct
24 Correct 16 ms 21504 KB Output is correct
25 Correct 16 ms 21504 KB Output is correct
26 Correct 18 ms 21504 KB Output is correct
27 Correct 16 ms 21504 KB Output is correct
28 Correct 18 ms 21504 KB Output is correct
29 Correct 16 ms 21504 KB Output is correct
30 Correct 16 ms 21504 KB Output is correct
31 Correct 16 ms 21632 KB Output is correct
32 Correct 18 ms 21632 KB Output is correct
33 Correct 18 ms 21632 KB Output is correct
34 Correct 18 ms 21632 KB Output is correct
35 Correct 21 ms 21760 KB Output is correct
36 Correct 19 ms 21760 KB Output is correct
37 Correct 21 ms 21760 KB Output is correct
38 Correct 20 ms 21760 KB Output is correct
39 Correct 25 ms 21928 KB Output is correct
40 Correct 19 ms 22272 KB Output is correct
41 Correct 18 ms 22400 KB Output is correct
42 Correct 21 ms 21760 KB Output is correct
43 Correct 19 ms 22272 KB Output is correct
44 Correct 19 ms 22016 KB Output is correct
45 Correct 24 ms 22016 KB Output is correct
46 Correct 22 ms 21888 KB Output is correct
47 Correct 20 ms 22016 KB Output is correct
48 Correct 20 ms 21888 KB Output is correct
49 Correct 21 ms 21888 KB Output is correct
50 Correct 19 ms 21888 KB Output is correct
51 Correct 19 ms 21888 KB Output is correct
52 Correct 21 ms 21888 KB Output is correct
53 Correct 30 ms 21888 KB Output is correct
54 Correct 20 ms 22144 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 21504 KB Output is correct
2 Correct 17 ms 21504 KB Output is correct
3 Correct 17 ms 21504 KB Output is correct
4 Correct 16 ms 21504 KB Output is correct
5 Correct 17 ms 21504 KB Output is correct
6 Correct 17 ms 21504 KB Output is correct
7 Correct 16 ms 21504 KB Output is correct
8 Correct 16 ms 21504 KB Output is correct
9 Correct 17 ms 21504 KB Output is correct
10 Correct 16 ms 21504 KB Output is correct
11 Correct 16 ms 21504 KB Output is correct
12 Correct 19 ms 21536 KB Output is correct
13 Correct 16 ms 21504 KB Output is correct
14 Correct 16 ms 21504 KB Output is correct
15 Correct 16 ms 21504 KB Output is correct
16 Correct 16 ms 21504 KB Output is correct
17 Correct 18 ms 21504 KB Output is correct
18 Correct 16 ms 21504 KB Output is correct
19 Correct 17 ms 21504 KB Output is correct
20 Correct 17 ms 21504 KB Output is correct
21 Correct 16 ms 21504 KB Output is correct
22 Correct 23 ms 21504 KB Output is correct
23 Correct 16 ms 21504 KB Output is correct
24 Correct 16 ms 21504 KB Output is correct
25 Correct 16 ms 21504 KB Output is correct
26 Correct 18 ms 21504 KB Output is correct
27 Correct 16 ms 21504 KB Output is correct
28 Correct 18 ms 21504 KB Output is correct
29 Correct 16 ms 21504 KB Output is correct
30 Correct 16 ms 21504 KB Output is correct
31 Correct 16 ms 21632 KB Output is correct
32 Correct 18 ms 21632 KB Output is correct
33 Correct 18 ms 21632 KB Output is correct
34 Correct 18 ms 21632 KB Output is correct
35 Correct 21 ms 21760 KB Output is correct
36 Correct 19 ms 21760 KB Output is correct
37 Correct 21 ms 21760 KB Output is correct
38 Correct 20 ms 21760 KB Output is correct
39 Correct 25 ms 21928 KB Output is correct
40 Correct 19 ms 22272 KB Output is correct
41 Correct 18 ms 22400 KB Output is correct
42 Correct 21 ms 21760 KB Output is correct
43 Correct 19 ms 22272 KB Output is correct
44 Correct 19 ms 22016 KB Output is correct
45 Correct 24 ms 22016 KB Output is correct
46 Correct 22 ms 21888 KB Output is correct
47 Correct 20 ms 22016 KB Output is correct
48 Correct 20 ms 21888 KB Output is correct
49 Correct 21 ms 21888 KB Output is correct
50 Correct 19 ms 21888 KB Output is correct
51 Correct 19 ms 21888 KB Output is correct
52 Correct 21 ms 21888 KB Output is correct
53 Correct 30 ms 21888 KB Output is correct
54 Correct 20 ms 22144 KB Output is correct
55 Correct 31 ms 22272 KB Output is correct
56 Correct 66 ms 24568 KB Output is correct
57 Correct 109 ms 26744 KB Output is correct
58 Correct 158 ms 28228 KB Output is correct
59 Correct 196 ms 30584 KB Output is correct
60 Correct 268 ms 32776 KB Output is correct
61 Correct 311 ms 34192 KB Output is correct
62 Correct 322 ms 35560 KB Output is correct
63 Correct 374 ms 38056 KB Output is correct
64 Correct 410 ms 39028 KB Output is correct
65 Correct 180 ms 70904 KB Output is correct
66 Correct 180 ms 70824 KB Output is correct
67 Correct 201 ms 38008 KB Output is correct
68 Correct 262 ms 56824 KB Output is correct
69 Correct 351 ms 54904 KB Output is correct
70 Correct 333 ms 54880 KB Output is correct
71 Correct 383 ms 45944 KB Output is correct
72 Correct 447 ms 45944 KB Output is correct
73 Correct 365 ms 45896 KB Output is correct
74 Correct 357 ms 45912 KB Output is correct
75 Correct 396 ms 45372 KB Output is correct
76 Correct 365 ms 45560 KB Output is correct
77 Correct 376 ms 45044 KB Output is correct
78 Correct 410 ms 45932 KB Output is correct
79 Correct 584 ms 59104 KB Output is correct