oj.uz

답안 #703139

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
703139 2023-02-26T08:25:25 Z browntoad Cat in a tree (BOI17_catinatree) C++14
100 / 100
 161 ms 36720 KB 
#include <bits/stdc++.h>
using namespace std;

const int maxn = 2e5+5;
int n, d;
vector<int> graph[maxn], dp(maxn);
multiset<int> pen[maxn]; // pending
multiset<int> ::iterator it, it2;
void dfs(int x, int dep){
    for (int i=0; i<graph[x].size(); i++){
        dfs(graph[x][i], dep+1);
        dp[x]+=dp[graph[x][i]];
        if (pen[graph[x][i]].size() > pen[x].size()) swap(pen[x], pen[graph[x][i]]);
        for (int j:pen[graph[x][i]]) pen[x].insert(j);
    }
    while(pen[x].size()>=1 && (*prev(pen[x].end()))>=dep+d) {
        dp[x]++;
        pen[x].erase(prev(pen[x].end()));
    }
    while(pen[x].size()>=2){
        it=pen[x].begin();
        it2=next(it);
        if ((*it)-dep+(*it2)-dep < d){
            pen[x].erase(it);
        }
        else break;
    }
    if (pen[x].size()==0) pen[x].insert(dep);
}

int main(){
    cin>>n>>d;
    for (int i=2; i<=n; i++){
        int x; cin>>x;
        graph[x+1].push_back(i);
    }
    dfs(1, 0);
    cout<<dp[1]+pen[1].size()<<endl;
}

Compilation message

catinatree.cpp: In function 'void dfs(int, int)':
catinatree.cpp:10:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |     for (int i=0; i<graph[x].size(); i++){
      |                   ~^~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 15132 KB Output is correct
2 Correct 8 ms 15188 KB Output is correct
3 Correct 8 ms 15188 KB Output is correct
4 Correct 7 ms 15188 KB Output is correct
5 Correct 8 ms 15188 KB Output is correct
6 Correct 8 ms 15060 KB Output is correct
7 Correct 9 ms 15192 KB Output is correct
8 Correct 9 ms 15104 KB Output is correct
9 Correct 8 ms 15188 KB Output is correct
10 Correct 8 ms 15196 KB Output is correct
11 Correct 9 ms 15188 KB Output is correct
12 Correct 10 ms 15176 KB Output is correct
13 Correct 8 ms 15080 KB Output is correct
14 Correct 8 ms 15188 KB Output is correct
15 Correct 8 ms 15188 KB Output is correct
16 Correct 8 ms 15188 KB Output is correct
17 Correct 8 ms 15192 KB Output is correct
18 Correct 9 ms 15092 KB Output is correct
19 Correct 8 ms 15188 KB Output is correct
20 Correct 7 ms 15188 KB Output is correct

Subtask #2
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 15132 KB Output is correct
2 Correct 8 ms 15188 KB Output is correct
3 Correct 8 ms 15188 KB Output is correct
4 Correct 7 ms 15188 KB Output is correct
5 Correct 8 ms 15188 KB Output is correct
6 Correct 8 ms 15060 KB Output is correct
7 Correct 9 ms 15192 KB Output is correct
8 Correct 9 ms 15104 KB Output is correct
9 Correct 8 ms 15188 KB Output is correct
10 Correct 8 ms 15196 KB Output is correct
11 Correct 9 ms 15188 KB Output is correct
12 Correct 10 ms 15176 KB Output is correct
13 Correct 8 ms 15080 KB Output is correct
14 Correct 8 ms 15188 KB Output is correct
15 Correct 8 ms 15188 KB Output is correct
16 Correct 8 ms 15188 KB Output is correct
17 Correct 8 ms 15192 KB Output is correct
18 Correct 9 ms 15092 KB Output is correct
19 Correct 8 ms 15188 KB Output is correct
20 Correct 7 ms 15188 KB Output is correct
21 Correct 8 ms 15324 KB Output is correct
22 Correct 8 ms 15188 KB Output is correct
23 Correct 8 ms 15188 KB Output is correct
24 Correct 8 ms 15188 KB Output is correct
25 Correct 9 ms 15188 KB Output is correct
26 Correct 10 ms 15172 KB Output is correct
27 Correct 8 ms 15188 KB Output is correct
28 Correct 8 ms 15200 KB Output is correct
29 Correct 8 ms 15188 KB Output is correct
30 Correct 8 ms 15188 KB Output is correct
31 Correct 8 ms 15184 KB Output is correct
32 Correct 9 ms 15276 KB Output is correct
33 Correct 9 ms 15188 KB Output is correct
34 Correct 8 ms 15212 KB Output is correct
35 Correct 8 ms 15268 KB Output is correct
36 Correct 8 ms 15188 KB Output is correct
37 Correct 8 ms 15188 KB Output is correct
38 Correct 9 ms 15184 KB Output is correct
39 Correct 9 ms 15276 KB Output is correct
40 Correct 10 ms 15324 KB Output is correct

Subtask #3
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 15132 KB Output is correct
2 Correct 8 ms 15188 KB Output is correct
3 Correct 8 ms 15188 KB Output is correct
4 Correct 7 ms 15188 KB Output is correct
5 Correct 8 ms 15188 KB Output is correct
6 Correct 8 ms 15060 KB Output is correct
7 Correct 9 ms 15192 KB Output is correct
8 Correct 9 ms 15104 KB Output is correct
9 Correct 8 ms 15188 KB Output is correct
10 Correct 8 ms 15196 KB Output is correct
11 Correct 9 ms 15188 KB Output is correct
12 Correct 10 ms 15176 KB Output is correct
13 Correct 8 ms 15080 KB Output is correct
14 Correct 8 ms 15188 KB Output is correct
15 Correct 8 ms 15188 KB Output is correct
16 Correct 8 ms 15188 KB Output is correct
17 Correct 8 ms 15192 KB Output is correct
18 Correct 9 ms 15092 KB Output is correct
19 Correct 8 ms 15188 KB Output is correct
20 Correct 7 ms 15188 KB Output is correct
21 Correct 8 ms 15324 KB Output is correct
22 Correct 8 ms 15188 KB Output is correct
23 Correct 8 ms 15188 KB Output is correct
24 Correct 8 ms 15188 KB Output is correct
25 Correct 9 ms 15188 KB Output is correct
26 Correct 10 ms 15172 KB Output is correct
27 Correct 8 ms 15188 KB Output is correct
28 Correct 8 ms 15200 KB Output is correct
29 Correct 8 ms 15188 KB Output is correct
30 Correct 8 ms 15188 KB Output is correct
31 Correct 8 ms 15184 KB Output is correct
32 Correct 9 ms 15276 KB Output is correct
33 Correct 9 ms 15188 KB Output is correct
34 Correct 8 ms 15212 KB Output is correct
35 Correct 8 ms 15268 KB Output is correct
36 Correct 8 ms 15188 KB Output is correct
37 Correct 8 ms 15188 KB Output is correct
38 Correct 9 ms 15184 KB Output is correct
39 Correct 9 ms 15276 KB Output is correct
40 Correct 10 ms 15324 KB Output is correct
41 Correct 88 ms 25788 KB Output is correct
42 Correct 59 ms 19672 KB Output is correct
43 Correct 62 ms 19688 KB Output is correct
44 Correct 58 ms 19592 KB Output is correct
45 Correct 57 ms 19656 KB Output is correct
46 Correct 161 ms 24800 KB Output is correct
47 Correct 126 ms 24212 KB Output is correct
48 Correct 125 ms 24208 KB Output is correct
49 Correct 135 ms 24228 KB Output is correct
50 Correct 73 ms 20660 KB Output is correct
51 Correct 60 ms 20700 KB Output is correct
52 Correct 56 ms 20704 KB Output is correct
53 Correct 119 ms 26312 KB Output is correct
54 Correct 128 ms 26296 KB Output is correct
55 Correct 129 ms 26316 KB Output is correct
56 Correct 9 ms 15328 KB Output is correct
57 Correct 15 ms 18404 KB Output is correct
58 Correct 47 ms 30284 KB Output is correct
59 Correct 118 ms 36720 KB Output is correct
60 Correct 87 ms 25276 KB Output is correct
61 Correct 108 ms 23196 KB Output is correct