oj.uz

Submission #134953

# Submission time Handle Problem Language Result Execution time Memory
134953 2019-07-23T13:19:05 Z songc Cat in a tree (BOI17_catinatree) C++14
100 / 100
 208 ms 16484 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
typedef pair<int, int> pii;

int N, K, ans;
int D[202020], dep[202020];
vector<int> adj[202020];
vector<pii> V;

void dfs(int u, int p, int d){
	if (D[u] >= d) return;
	D[u] = d;
	for (int v : adj[u]) if (v != p) dfs(v, u, d-1);
}

int main(){
	scanf("%d %d", &N, &K);
	for (int i=2; i<=N; i++){
		int x;
		scanf("%d", &x);
		adj[x+1].push_back(i);
		adj[i].push_back(x+1);
		dep[i] = dep[x+1] + 1;
	}
	for (int i=1; i<=N; i++) V.push_back(pii(-dep[i], i));
	sort(V.begin(), V.end());
	for (int i=0; i<N; i++){
		int u = V[i].second;
		if (D[u]) continue;
		ans++;
		dfs(u, 0, K);
	} 
	printf("%d\n", ans);
	return 0;
}

Compilation message

catinatree.cpp: In function 'int main()':
catinatree.cpp:18:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &K);
  ~~~~~^~~~~~~~~~~~~~~~~
catinatree.cpp:21:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &x);
   ~~~~~^~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 6 ms 5112 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 5112 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 5112 KB Output is correct
9 Correct 6 ms 5112 KB Output is correct
10 Correct 6 ms 5112 KB Output is correct
11 Correct 8 ms 5112 KB Output is correct
12 Correct 6 ms 5112 KB Output is correct
13 Correct 8 ms 5112 KB Output is correct
14 Correct 6 ms 5112 KB Output is correct
15 Correct 8 ms 5112 KB Output is correct
16 Correct 6 ms 5112 KB Output is correct
17 Correct 6 ms 5112 KB Output is correct
18 Correct 6 ms 5112 KB Output is correct
19 Correct 8 ms 5112 KB Output is correct
20 Correct 8 ms 5112 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5112 KB Output is correct
2 Correct 6 ms 5112 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 5112 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 5112 KB Output is correct
9 Correct 6 ms 5112 KB Output is correct
10 Correct 6 ms 5112 KB Output is correct
11 Correct 8 ms 5112 KB Output is correct
12 Correct 6 ms 5112 KB Output is correct
13 Correct 8 ms 5112 KB Output is correct
14 Correct 6 ms 5112 KB Output is correct
15 Correct 8 ms 5112 KB Output is correct
16 Correct 6 ms 5112 KB Output is correct
17 Correct 6 ms 5112 KB Output is correct
18 Correct 6 ms 5112 KB Output is correct
19 Correct 8 ms 5112 KB Output is correct
20 Correct 8 ms 5112 KB Output is correct
21 Correct 9 ms 5244 KB Output is correct
22 Correct 6 ms 5084 KB Output is correct
23 Correct 6 ms 5112 KB Output is correct
24 Correct 6 ms 5116 KB Output is correct
25 Correct 7 ms 5112 KB Output is correct
26 Correct 7 ms 5112 KB Output is correct
27 Correct 7 ms 5112 KB Output is correct
28 Correct 7 ms 5240 KB Output is correct
29 Correct 7 ms 5240 KB Output is correct
30 Correct 7 ms 5112 KB Output is correct
31 Correct 8 ms 5240 KB Output is correct
32 Correct 6 ms 5112 KB Output is correct
33 Correct 8 ms 5144 KB Output is correct
34 Correct 7 ms 5240 KB Output is correct
35 Correct 7 ms 5240 KB Output is correct
36 Correct 8 ms 5144 KB Output is correct
37 Correct 7 ms 5112 KB Output is correct
38 Correct 6 ms 5240 KB Output is correct
39 Correct 7 ms 5240 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 6 ms 5112 KB Output is correct
2 Correct 6 ms 5112 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 5112 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 5112 KB Output is correct
9 Correct 6 ms 5112 KB Output is correct
10 Correct 6 ms 5112 KB Output is correct
11 Correct 8 ms 5112 KB Output is correct
12 Correct 6 ms 5112 KB Output is correct
13 Correct 8 ms 5112 KB Output is correct
14 Correct 6 ms 5112 KB Output is correct
15 Correct 8 ms 5112 KB Output is correct
16 Correct 6 ms 5112 KB Output is correct
17 Correct 6 ms 5112 KB Output is correct
18 Correct 6 ms 5112 KB Output is correct
19 Correct 8 ms 5112 KB Output is correct
20 Correct 8 ms 5112 KB Output is correct
21 Correct 9 ms 5244 KB Output is correct
22 Correct 6 ms 5084 KB Output is correct
23 Correct 6 ms 5112 KB Output is correct
24 Correct 6 ms 5116 KB Output is correct
25 Correct 7 ms 5112 KB Output is correct
26 Correct 7 ms 5112 KB Output is correct
27 Correct 7 ms 5112 KB Output is correct
28 Correct 7 ms 5240 KB Output is correct
29 Correct 7 ms 5240 KB Output is correct
30 Correct 7 ms 5112 KB Output is correct
31 Correct 8 ms 5240 KB Output is correct
32 Correct 6 ms 5112 KB Output is correct
33 Correct 8 ms 5144 KB Output is correct
34 Correct 7 ms 5240 KB Output is correct
35 Correct 7 ms 5240 KB Output is correct
36 Correct 8 ms 5144 KB Output is correct
37 Correct 7 ms 5112 KB Output is correct
38 Correct 6 ms 5240 KB Output is correct
39 Correct 7 ms 5240 KB Output is correct
40 Correct 7 ms 5112 KB Output is correct
41 Correct 100 ms 15436 KB Output is correct
42 Correct 81 ms 10480 KB Output is correct
43 Correct 68 ms 10604 KB Output is correct
44 Correct 62 ms 10608 KB Output is correct
45 Correct 64 ms 10496 KB Output is correct
46 Correct 146 ms 16044 KB Output is correct
47 Correct 208 ms 16056 KB Output is correct
48 Correct 149 ms 16040 KB Output is correct
49 Correct 148 ms 16052 KB Output is correct
50 Correct 46 ms 10864 KB Output is correct
51 Correct 47 ms 10864 KB Output is correct
52 Correct 48 ms 10864 KB Output is correct
53 Correct 90 ms 16432 KB Output is correct
54 Correct 94 ms 16460 KB Output is correct
55 Correct 95 ms 16484 KB Output is correct
56 Correct 7 ms 5240 KB Output is correct
57 Correct 14 ms 6392 KB Output is correct
58 Correct 45 ms 10988 KB Output is correct
59 Correct 127 ms 16356 KB Output is correct
60 Correct 108 ms 15524 KB Output is correct
61 Correct 134 ms 15284 KB Output is correct