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Submission #253986

# Submission time Handle Problem Language Result Execution time Memory
253986 2020-07-29T08:25:46 Z Berted Tax Evasion (LMIO19_mokesciai) C++14
100 / 100
 190 ms 47088 KB 
#include <iostream>
#include <set>
#include <vector>
#include <assert.h>
#include <map>
#include <list>
#define vi vector<int>
#define pub push_back
#define pii pair<int, int>
#define fst first
#define snd second
using namespace std;

int n, k, cnt[200001] = {}, mn = 1e9;
bool spc[200001];
vector<int> adj[200001];
vi par;

void dfs(int u, int p)
{
	int h = par.size();
	par.push_back(u);
	cnt[par[h / 2 + 1]] += spc[u];
	spc[u] = 0;
	for (auto v : adj[u])
	{
		// cout << u << " - " << v << "\n";
		if (v != p) dfs(v, u);
	}
	par.pop_back();
}


map<int, int>* dfs2(int u, int p, int h)
{
	map<int, int> *ret = nullptr, *rr;
	
	for (auto v : adj[u])
	{
		if (v != p)
		{
			rr = dfs2(v, u, h + 1);
			if (ret == nullptr || rr -> size() > ret -> size()) {swap(rr, ret);}
			if (rr != nullptr) for (auto v : *rr) {(*ret)[v.fst] += v.snd;}
		}
	}
	if (ret == nullptr) {ret = new map<int, int>;}
	(*ret)[-h]++;
	for (int i = 0; i < cnt[u]; i++)
	{
		mn = min(mn, -(ret -> begin() -> fst));
		(ret -> begin() -> snd)--;
		if (ret -> begin() -> snd == 0) {ret -> erase(ret -> begin());}
	}
	return ret;
}

int main()
{
	ios :: sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> n >> k;
	for (int i = 1; i < n; i++)
	{
		int v; cin >> v;
		adj[v - 1].push_back(i);
		adj[i].push_back(v - 1);
	}
	for (int i = 0; i < k; i++)
	{
		int x; cin >> x; spc[x - 1] = 1;
	}
	if (spc[0]) {cout << "1\n";}
	else
	{
		dfs(0, -1); dfs2(0 ,-1, 0);
		cout << mn + 1 << '\n';
	}
	
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 6 ms 6016 KB Output is correct
4 Correct 6 ms 6016 KB Output is correct
5 Correct 6 ms 6016 KB Output is correct
6 Correct 111 ms 47084 KB Output is correct
7 Correct 110 ms 47088 KB Output is correct
8 Correct 5 ms 6144 KB Output is correct
9 Correct 125 ms 42532 KB Output is correct
10 Correct 132 ms 42472 KB Output is correct
11 Correct 126 ms 44724 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4992 KB Output is correct
2 Correct 5 ms 5888 KB Output is correct
3 Correct 5 ms 5888 KB Output is correct
4 Correct 5 ms 5632 KB Output is correct
5 Correct 5 ms 5760 KB Output is correct
6 Correct 5 ms 5632 KB Output is correct
7 Correct 111 ms 47084 KB Output is correct
8 Correct 110 ms 47088 KB Output is correct
9 Correct 5 ms 6144 KB Output is correct
10 Correct 89 ms 36716 KB Output is correct
11 Correct 90 ms 36716 KB Output is correct
12 Correct 116 ms 30444 KB Output is correct
13 Correct 99 ms 38000 KB Output is correct
14 Correct 76 ms 27128 KB Output is correct
15 Correct 125 ms 30584 KB Output is correct
16 Correct 101 ms 37872 KB Output is correct
17 Correct 166 ms 27768 KB Output is correct
18 Correct 112 ms 36664 KB Output is correct
19 Correct 103 ms 22776 KB Output is correct
20 Correct 93 ms 21496 KB Output is correct
21 Correct 92 ms 21496 KB Output is correct
22 Correct 93 ms 21420 KB Output is correct
23 Correct 81 ms 21624 KB Output is correct
24 Correct 88 ms 21368 KB Output is correct

Subtask #3
39.0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 3 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 6 ms 5888 KB Output is correct
7 Correct 5 ms 5888 KB Output is correct
8 Correct 5 ms 5888 KB Output is correct
9 Correct 6 ms 5632 KB Output is correct
10 Correct 5 ms 5632 KB Output is correct
11 Correct 7 ms 5888 KB Output is correct
12 Correct 6 ms 5632 KB Output is correct
13 Correct 6 ms 5632 KB Output is correct
14 Correct 6 ms 5632 KB Output is correct
15 Correct 6 ms 5760 KB Output is correct
16 Correct 5 ms 5760 KB Output is correct
17 Correct 6 ms 5376 KB Output is correct
18 Correct 6 ms 5632 KB Output is correct
19 Correct 5 ms 5376 KB Output is correct
20 Correct 5 ms 5504 KB Output is correct
21 Correct 5 ms 5504 KB Output is correct
22 Correct 3 ms 4992 KB Output is correct
23 Correct 3 ms 4992 KB Output is correct
24 Correct 6 ms 6016 KB Output is correct
25 Correct 6 ms 6016 KB Output is correct
26 Correct 6 ms 6016 KB Output is correct
27 Correct 3 ms 4992 KB Output is correct
28 Correct 5 ms 5888 KB Output is correct
29 Correct 5 ms 5888 KB Output is correct
30 Correct 5 ms 5632 KB Output is correct
31 Correct 5 ms 5760 KB Output is correct
32 Correct 5 ms 5632 KB Output is correct
33 Correct 5 ms 6144 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 4 ms 4992 KB Output is correct
4 Correct 3 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 6 ms 5888 KB Output is correct
7 Correct 5 ms 5888 KB Output is correct
8 Correct 5 ms 5888 KB Output is correct
9 Correct 6 ms 5632 KB Output is correct
10 Correct 5 ms 5632 KB Output is correct
11 Correct 7 ms 5888 KB Output is correct
12 Correct 6 ms 5632 KB Output is correct
13 Correct 6 ms 5632 KB Output is correct
14 Correct 6 ms 5632 KB Output is correct
15 Correct 6 ms 5760 KB Output is correct
16 Correct 5 ms 5760 KB Output is correct
17 Correct 6 ms 5376 KB Output is correct
18 Correct 6 ms 5632 KB Output is correct
19 Correct 5 ms 5376 KB Output is correct
20 Correct 5 ms 5504 KB Output is correct
21 Correct 5 ms 5504 KB Output is correct
22 Correct 3 ms 4992 KB Output is correct
23 Correct 3 ms 4992 KB Output is correct
24 Correct 6 ms 6016 KB Output is correct
25 Correct 6 ms 6016 KB Output is correct
26 Correct 6 ms 6016 KB Output is correct
27 Correct 3 ms 4992 KB Output is correct
28 Correct 5 ms 5888 KB Output is correct
29 Correct 5 ms 5888 KB Output is correct
30 Correct 5 ms 5632 KB Output is correct
31 Correct 5 ms 5760 KB Output is correct
32 Correct 5 ms 5632 KB Output is correct
33 Correct 111 ms 47084 KB Output is correct
34 Correct 110 ms 47088 KB Output is correct
35 Correct 5 ms 6144 KB Output is correct
36 Correct 89 ms 36716 KB Output is correct
37 Correct 90 ms 36716 KB Output is correct
38 Correct 116 ms 30444 KB Output is correct
39 Correct 99 ms 38000 KB Output is correct
40 Correct 76 ms 27128 KB Output is correct
41 Correct 125 ms 30584 KB Output is correct
42 Correct 101 ms 37872 KB Output is correct
43 Correct 166 ms 27768 KB Output is correct
44 Correct 112 ms 36664 KB Output is correct
45 Correct 103 ms 22776 KB Output is correct
46 Correct 93 ms 21496 KB Output is correct
47 Correct 92 ms 21496 KB Output is correct
48 Correct 93 ms 21420 KB Output is correct
49 Correct 81 ms 21624 KB Output is correct
50 Correct 88 ms 21368 KB Output is correct
51 Correct 125 ms 42532 KB Output is correct
52 Correct 132 ms 42472 KB Output is correct
53 Correct 126 ms 44724 KB Output is correct
54 Correct 95 ms 36844 KB Output is correct
55 Correct 97 ms 36716 KB Output is correct
56 Correct 98 ms 40692 KB Output is correct
57 Correct 91 ms 27128 KB Output is correct
58 Correct 117 ms 30504 KB Output is correct
59 Correct 106 ms 29800 KB Output is correct
60 Correct 144 ms 28524 KB Output is correct
61 Correct 123 ms 34284 KB Output is correct
62 Correct 190 ms 27516 KB Output is correct
63 Correct 118 ms 33904 KB Output is correct
64 Correct 106 ms 21240 KB Output is correct
65 Correct 95 ms 20344 KB Output is correct
66 Correct 95 ms 17656 KB Output is correct
67 Correct 99 ms 19320 KB Output is correct
68 Correct 93 ms 21136 KB Output is correct
69 Correct 98 ms 15352 KB Output is correct
70 Correct 55 ms 16632 KB Output is correct
71 Correct 98 ms 29556 KB Output is correct