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Submission #732117

# Submission time Handle Problem Language Result Execution time Memory
732117 2023-04-28T13:13:36 Z Trunkty Cat in a tree (BOI17_catinatree) C++14
100 / 100
 83 ms 25192 KB 
#include <bits/extc++.h>
using namespace std;
typedef long long ll;
#define int ll

int n,d;
vector<int> roads[200005];
int dp[200005],mini[200005];

void dfs(int x){
    vector<int> v;
    for(int i:roads[x]){
        dfs(i);
        dp[x] += dp[i];
        v.push_back(mini[i]);
    }
    if(v.size()==0){
        dp[x]++;
    }
    else{
        sort(v.begin(),v.end(),greater<int>());
        while(v.size()>=2){
            int a = v.back();
            v.pop_back();
            if(a+v.back()+2LL<d){
                dp[x]--;
                continue;
            }
            else{
                v.push_back(a);
                break;
            }
        }
        if(v.back()+1LL<d){
            mini[x] = v.back()+1LL;
        }
        else{
            dp[x]++;
        }
    }
}

signed main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
    cin >> n >> d;
    for(int i=1;i<=n-1;i++){
        int a;
        cin >> a;
        roads[a].push_back(i);
    }
    dfs(0);
    cout << dp[0] << "\n";
	return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5024 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 5028 KB Output is correct
8 Correct 3 ms 5020 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 5024 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 5024 KB Output is correct
16 Correct 3 ms 5024 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 5024 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5024 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 5028 KB Output is correct
8 Correct 3 ms 5020 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 5024 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 5024 KB Output is correct
16 Correct 3 ms 5024 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 5024 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 5204 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5020 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 4 ms 5028 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 3 ms 5076 KB Output is correct
29 Correct 3 ms 5076 KB Output is correct
30 Correct 4 ms 5076 KB Output is correct
31 Correct 3 ms 5076 KB Output is correct
32 Correct 3 ms 5076 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 3 ms 4948 KB Output is correct
35 Correct 3 ms 4948 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct
37 Correct 3 ms 5076 KB Output is correct
38 Correct 3 ms 5028 KB Output is correct
39 Correct 3 ms 5076 KB Output is correct
40 Correct 3 ms 5204 KB Output is correct

Subtask #3
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 5024 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 5028 KB Output is correct
8 Correct 3 ms 5020 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 5024 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 3 ms 5024 KB Output is correct
16 Correct 3 ms 5024 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 5024 KB Output is correct
19 Correct 3 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 5204 KB Output is correct
22 Correct 3 ms 4948 KB Output is correct
23 Correct 3 ms 5020 KB Output is correct
24 Correct 3 ms 4948 KB Output is correct
25 Correct 3 ms 4948 KB Output is correct
26 Correct 4 ms 5028 KB Output is correct
27 Correct 3 ms 4948 KB Output is correct
28 Correct 3 ms 5076 KB Output is correct
29 Correct 3 ms 5076 KB Output is correct
30 Correct 4 ms 5076 KB Output is correct
31 Correct 3 ms 5076 KB Output is correct
32 Correct 3 ms 5076 KB Output is correct
33 Correct 3 ms 5076 KB Output is correct
34 Correct 3 ms 4948 KB Output is correct
35 Correct 3 ms 4948 KB Output is correct
36 Correct 3 ms 4948 KB Output is correct
37 Correct 3 ms 5076 KB Output is correct
38 Correct 3 ms 5028 KB Output is correct
39 Correct 3 ms 5076 KB Output is correct
40 Correct 3 ms 5204 KB Output is correct
41 Correct 41 ms 13496 KB Output is correct
42 Correct 25 ms 8148 KB Output is correct
43 Correct 28 ms 8984 KB Output is correct
44 Correct 29 ms 8892 KB Output is correct
45 Correct 32 ms 8952 KB Output is correct
46 Correct 73 ms 12956 KB Output is correct
47 Correct 83 ms 12980 KB Output is correct
48 Correct 75 ms 13032 KB Output is correct
49 Correct 79 ms 12960 KB Output is correct
50 Correct 14 ms 7284 KB Output is correct
51 Correct 14 ms 7340 KB Output is correct
52 Correct 14 ms 7308 KB Output is correct
53 Correct 25 ms 9612 KB Output is correct
54 Correct 26 ms 9556 KB Output is correct
55 Correct 27 ms 9500 KB Output is correct
56 Correct 3 ms 5204 KB Output is correct
57 Correct 8 ms 8492 KB Output is correct
58 Correct 30 ms 21072 KB Output is correct
59 Correct 65 ms 25192 KB Output is correct
60 Correct 43 ms 13888 KB Output is correct
61 Correct 52 ms 13200 KB Output is correct