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Submission #132710

# Submission time Handle Problem Language Result Execution time Memory
132710 2019-07-19T11:37:12 Z youngyojun Cat in a tree (BOI17_catinatree) C++11
100 / 100
 207 ms 16280 KB 
#include <bits/stdc++.h>
#define eb emplace_back
using namespace std;

const int MAXN = 200055;

vector<int> G[MAXN];
int prt[MAXN], dep[MAXN];
int A[MAXN], O[MAXN];

int N, D, Ans;

void f(int i) {
	if(A[i] < 2) return;
	int l = A[i]-1;
	for(int v : G[i]) if(A[v] < l) {
		A[v] = l;
		f(v);
	}
}

int main() {
	ios::sync_with_stdio(false);

	cin >> N >> D;
	for(int i = 1; i < N; i++) {
		cin >> prt[i];
		dep[i] = dep[prt[i]] + 1;
		G[prt[i]].eb(i);
		G[i].eb(prt[i]);
	}

	iota(O, O+N, 0); sort(O, O+N, [&](int a, int b) {
		return dep[a] > dep[b];
	});

	for(int oi = 0, i; oi < N; oi++) {
		i = O[oi];
		if(!A[i]) {
			Ans++;
			A[i] = D;
			f(i);
		}
	}

	cout << Ans << endl;
	return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 4984 KB Output is correct
2 Correct 7 ms 5240 KB Output is correct
3 Correct 6 ms 5112 KB Output is correct
4 Correct 6 ms 5112 KB Output is correct
5 Correct 6 ms 5116 KB Output is correct
6 Correct 6 ms 5112 KB Output is correct
7 Correct 6 ms 5112 KB Output is correct
8 Correct 6 ms 4984 KB Output is correct
9 Correct 6 ms 4984 KB Output is correct
10 Correct 6 ms 5112 KB Output is correct
11 Correct 6 ms 4984 KB Output is correct
12 Correct 6 ms 4984 KB Output is correct
13 Correct 6 ms 5000 KB Output is correct
14 Correct 7 ms 5080 KB Output is correct
15 Correct 6 ms 4984 KB Output is correct
16 Correct 7 ms 4984 KB Output is correct
17 Correct 8 ms 4984 KB Output is correct
18 Correct 9 ms 4984 KB Output is correct
19 Correct 8 ms 4984 KB Output is correct
20 Correct 6 ms 4984 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 4984 KB Output is correct
2 Correct 7 ms 5240 KB Output is correct
3 Correct 6 ms 5112 KB Output is correct
4 Correct 6 ms 5112 KB Output is correct
5 Correct 6 ms 5116 KB Output is correct
6 Correct 6 ms 5112 KB Output is correct
7 Correct 6 ms 5112 KB Output is correct
8 Correct 6 ms 4984 KB Output is correct
9 Correct 6 ms 4984 KB Output is correct
10 Correct 6 ms 5112 KB Output is correct
11 Correct 6 ms 4984 KB Output is correct
12 Correct 6 ms 4984 KB Output is correct
13 Correct 6 ms 5000 KB Output is correct
14 Correct 7 ms 5080 KB Output is correct
15 Correct 6 ms 4984 KB Output is correct
16 Correct 7 ms 4984 KB Output is correct
17 Correct 8 ms 4984 KB Output is correct
18 Correct 9 ms 4984 KB Output is correct
19 Correct 8 ms 4984 KB Output is correct
20 Correct 6 ms 4984 KB Output is correct
21 Correct 6 ms 5112 KB Output is correct
22 Correct 7 ms 5112 KB Output is correct
23 Correct 7 ms 5112 KB Output is correct
24 Correct 6 ms 5116 KB Output is correct
25 Correct 6 ms 5112 KB Output is correct
26 Correct 7 ms 5240 KB Output is correct
27 Correct 7 ms 5112 KB Output is correct
28 Correct 7 ms 5112 KB Output is correct
29 Correct 8 ms 5112 KB Output is correct
30 Correct 7 ms 5112 KB Output is correct
31 Correct 7 ms 5080 KB Output is correct
32 Correct 7 ms 5112 KB Output is correct
33 Correct 7 ms 5112 KB Output is correct
34 Correct 7 ms 5112 KB Output is correct
35 Correct 7 ms 5112 KB Output is correct
36 Correct 6 ms 5112 KB Output is correct
37 Correct 5 ms 5112 KB Output is correct
38 Correct 7 ms 5112 KB Output is correct
39 Correct 6 ms 5112 KB Output is correct
40 Correct 7 ms 5112 KB Output is correct

Subtask #3
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 4984 KB Output is correct
2 Correct 7 ms 5240 KB Output is correct
3 Correct 6 ms 5112 KB Output is correct
4 Correct 6 ms 5112 KB Output is correct
5 Correct 6 ms 5116 KB Output is correct
6 Correct 6 ms 5112 KB Output is correct
7 Correct 6 ms 5112 KB Output is correct
8 Correct 6 ms 4984 KB Output is correct
9 Correct 6 ms 4984 KB Output is correct
10 Correct 6 ms 5112 KB Output is correct
11 Correct 6 ms 4984 KB Output is correct
12 Correct 6 ms 4984 KB Output is correct
13 Correct 6 ms 5000 KB Output is correct
14 Correct 7 ms 5080 KB Output is correct
15 Correct 6 ms 4984 KB Output is correct
16 Correct 7 ms 4984 KB Output is correct
17 Correct 8 ms 4984 KB Output is correct
18 Correct 9 ms 4984 KB Output is correct
19 Correct 8 ms 4984 KB Output is correct
20 Correct 6 ms 4984 KB Output is correct
21 Correct 6 ms 5112 KB Output is correct
22 Correct 7 ms 5112 KB Output is correct
23 Correct 7 ms 5112 KB Output is correct
24 Correct 6 ms 5116 KB Output is correct
25 Correct 6 ms 5112 KB Output is correct
26 Correct 7 ms 5240 KB Output is correct
27 Correct 7 ms 5112 KB Output is correct
28 Correct 7 ms 5112 KB Output is correct
29 Correct 8 ms 5112 KB Output is correct
30 Correct 7 ms 5112 KB Output is correct
31 Correct 7 ms 5080 KB Output is correct
32 Correct 7 ms 5112 KB Output is correct
33 Correct 7 ms 5112 KB Output is correct
34 Correct 7 ms 5112 KB Output is correct
35 Correct 7 ms 5112 KB Output is correct
36 Correct 6 ms 5112 KB Output is correct
37 Correct 5 ms 5112 KB Output is correct
38 Correct 7 ms 5112 KB Output is correct
39 Correct 6 ms 5112 KB Output is correct
40 Correct 7 ms 5112 KB Output is correct
41 Correct 86 ms 15124 KB Output is correct
42 Correct 48 ms 10360 KB Output is correct
43 Correct 59 ms 10448 KB Output is correct
44 Correct 52 ms 10484 KB Output is correct
45 Correct 52 ms 10336 KB Output is correct
46 Correct 123 ms 15928 KB Output is correct
47 Correct 207 ms 15900 KB Output is correct
48 Correct 125 ms 15864 KB Output is correct
49 Correct 122 ms 15864 KB Output is correct
50 Correct 32 ms 10616 KB Output is correct
51 Correct 36 ms 10688 KB Output is correct
52 Correct 37 ms 10700 KB Output is correct
53 Correct 63 ms 16280 KB Output is correct
54 Correct 68 ms 16248 KB Output is correct
55 Correct 70 ms 16220 KB Output is correct
56 Correct 7 ms 5240 KB Output is correct
57 Correct 13 ms 6264 KB Output is correct
58 Correct 42 ms 10576 KB Output is correct
59 Correct 117 ms 15956 KB Output is correct
60 Correct 91 ms 15476 KB Output is correct
61 Correct 137 ms 15224 KB Output is correct