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Submission #595691

# Submission time Handle Problem Language Result Execution time Memory
595691 2022-07-14T01:10:33 Z czhang2718 Meetings 2 (JOI21_meetings2) C++17
20 / 100
 4000 ms 16344 KB 
#include "bits/stdc++.h"
using namespace std;

const int N=2e5+1;
int n;
vector<int> adj[N];
bool vis[N];
int sz[N];
int ans[N];
int dist[N];
int root[N];

void dfs(int x){
    vis[x]=1;
    sz[x]=1;
    for(int k:adj[x]){
        if(!vis[k]){
            dist[k]=dist[x]+1;
            root[k]=(root[x]?root[x]:k);
            dfs(k);
            sz[x]+=sz[k];
        }
    }
}

void ckmx(int &a, int b){ a=max(a,b); }

int main(){
    cin.tie(0)->sync_with_stdio(0);

    cin >> n;
    for(int i=1; i<n; i++){
        int u,v; cin >> u >> v;
        adj[u].push_back(v);
        adj[v].push_back(u);
    }

    for(int i=1; i<=n; i++){
        for(int j=1; j<=n; j++) vis[j]=0;
        dist[i]=root[i]=0;
        dfs(i);

        for(int j=1; j<=n; j++){
            if(j==i) continue;
            ckmx(ans[2*min(sz[j], n-sz[root[j]])], dist[j]);
        }
    }

    for(int i=n; i>=1; i--) ans[i]=max(ans[i], ans[i+2]);

    for(int i=1; i<=n; i++){
        if(i&1) cout << "1\n";
        else cout << ans[i]+1 << "\n";
    }
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 4 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 5016 KB Output is correct
13 Correct 3 ms 5020 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 5024 KB Output is correct
17 Correct 3 ms 5024 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 4 ms 5028 KB Output is correct
20 Correct 3 ms 5024 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 4 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 5016 KB Output is correct
13 Correct 3 ms 5020 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 5024 KB Output is correct
17 Correct 3 ms 5024 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 4 ms 5028 KB Output is correct
20 Correct 3 ms 5024 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 365 ms 5252 KB Output is correct
23 Correct 386 ms 5256 KB Output is correct
24 Correct 351 ms 5260 KB Output is correct
25 Correct 361 ms 5244 KB Output is correct
26 Correct 362 ms 5324 KB Output is correct
27 Correct 367 ms 5256 KB Output is correct
28 Correct 375 ms 5264 KB Output is correct
29 Correct 378 ms 5252 KB Output is correct
30 Correct 386 ms 5248 KB Output is correct
31 Correct 378 ms 5324 KB Output is correct
32 Correct 367 ms 5392 KB Output is correct
33 Correct 331 ms 5500 KB Output is correct
34 Correct 336 ms 5204 KB Output is correct
35 Correct 237 ms 5264 KB Output is correct
36 Correct 291 ms 5288 KB Output is correct
37 Correct 234 ms 5272 KB Output is correct
38 Correct 290 ms 5452 KB Output is correct

Subtask #3
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 4 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 2 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 5016 KB Output is correct
13 Correct 3 ms 5020 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 3 ms 5024 KB Output is correct
17 Correct 3 ms 5024 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 4 ms 5028 KB Output is correct
20 Correct 3 ms 5024 KB Output is correct
21 Correct 3 ms 4948 KB Output is correct
22 Correct 365 ms 5252 KB Output is correct
23 Correct 386 ms 5256 KB Output is correct
24 Correct 351 ms 5260 KB Output is correct
25 Correct 361 ms 5244 KB Output is correct
26 Correct 362 ms 5324 KB Output is correct
27 Correct 367 ms 5256 KB Output is correct
28 Correct 375 ms 5264 KB Output is correct
29 Correct 378 ms 5252 KB Output is correct
30 Correct 386 ms 5248 KB Output is correct
31 Correct 378 ms 5324 KB Output is correct
32 Correct 367 ms 5392 KB Output is correct
33 Correct 331 ms 5500 KB Output is correct
34 Correct 336 ms 5204 KB Output is correct
35 Correct 237 ms 5264 KB Output is correct
36 Correct 291 ms 5288 KB Output is correct
37 Correct 234 ms 5272 KB Output is correct
38 Correct 290 ms 5452 KB Output is correct
39 Execution timed out 4049 ms 16344 KB Time limit exceeded
40 Halted 0 ms 0 KB -