제출 #595691

#제출 시각아이디문제언어결과실행 시간메모리
595691czhang2718Meetings 2 (JOI21_meetings2)C++17
20 / 100
4049 ms16344 KiB
#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";
    }
}
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...