oj.uz

답안 #970274

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
970274 2024-04-26T10:05:38 Z vjudge1 Meetings 2 (JOI21_meetings2) C++17
100 / 100
 306 ms 19024 KB 
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
 
// #define int long long
#define pb push_back
 
#define endl '\n'
#define fastIO ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
#define setmin(x,y) x=min((x),(y))
#define setmax(x,y) x=max((x),(y))
#define fi first
#define se second
 
// mt19937 hdp(chrono::high_resolution_clock::now().time_since_epoch().count());
// int rand(int l,int r){return l+((hdp()%(r-l+1))+r-l+1)%(r-l+1);}
 
const int N = 2e5+5;
const int mod = 998244353;
const int SQ = 450;
 
vector<int> g[N];
int n,k,ans[N],a1[N],a2[N],sz[N],mx;
bool b[N];
 
int dfs(int u,int p=0)
{
    sz[u]=1;
    for(auto v:g[u]) if(v!=p&&!b[v]) sz[u]+=dfs(v,u);
    return sz[u];
}
 
int find(int u,int s,int p=0)
{
    for(auto v:g[u]) if(!b[v]&&v!=p&&sz[v]*2>s) return find(v,s,u);
    return u;
}
 
void add(int u,int p,int l=2)
{
    setmax(a2[sz[u]],l);
    for(auto v:g[u]) if(!b[v]&&v!=p) add(v,u,l+1);
}
 
void solve(int u)
{
    u=find(u,dfs(u));
    dfs(u);
    for(int i=1;i<=sz[u];i++) a1[i]=1;
    for(auto v:g[u]) if(!b[v]) 
    {
        add(v,u);
        int cur=0;
        for(int i=sz[v];i>=1;i--)
        {
            setmax(cur,a2[i]);
            setmax(ans[2*i],cur+a1[i]-1);
        }
        cur=0;
        for(int i=sz[v];i>=1;i--)
        {
            setmax(cur,a2[i]);
            a2[i]=0;
            setmax(a1[i],cur);
        }
    }
    b[u]=1;
    for(auto v:g[u]) if(!b[v]) solve(v);
}
 
signed main()
{
    fastIO
    cin>>n;
    for(int i=1;i<=n;i++) ans[i]=1;
    for(int i=1;i<n;i++)
    {
        int u,v;
        cin>>u>>v;
        g[u].pb(v);
        g[v].pb(u);
    }
    solve(1);
    for(int i=1;i<=n;i++) cout<<ans[i]<<endl;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8280 KB Output is correct
2 Correct 2 ms 8284 KB Output is correct
3 Correct 2 ms 8284 KB Output is correct
4 Correct 2 ms 8284 KB Output is correct
5 Correct 2 ms 8284 KB Output is correct
6 Correct 2 ms 8284 KB Output is correct
7 Correct 3 ms 8284 KB Output is correct
8 Correct 2 ms 8284 KB Output is correct
9 Correct 2 ms 8284 KB Output is correct
10 Correct 2 ms 8284 KB Output is correct
11 Correct 2 ms 8284 KB Output is correct
12 Correct 2 ms 8284 KB Output is correct
13 Correct 2 ms 8284 KB Output is correct
14 Correct 2 ms 8284 KB Output is correct
15 Correct 3 ms 8284 KB Output is correct
16 Correct 2 ms 8136 KB Output is correct
17 Correct 2 ms 8284 KB Output is correct
18 Correct 2 ms 8284 KB Output is correct
19 Correct 2 ms 8284 KB Output is correct
20 Correct 2 ms 8116 KB Output is correct
21 Correct 2 ms 8284 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8280 KB Output is correct
2 Correct 2 ms 8284 KB Output is correct
3 Correct 2 ms 8284 KB Output is correct
4 Correct 2 ms 8284 KB Output is correct
5 Correct 2 ms 8284 KB Output is correct
6 Correct 2 ms 8284 KB Output is correct
7 Correct 3 ms 8284 KB Output is correct
8 Correct 2 ms 8284 KB Output is correct
9 Correct 2 ms 8284 KB Output is correct
10 Correct 2 ms 8284 KB Output is correct
11 Correct 2 ms 8284 KB Output is correct
12 Correct 2 ms 8284 KB Output is correct
13 Correct 2 ms 8284 KB Output is correct
14 Correct 2 ms 8284 KB Output is correct
15 Correct 3 ms 8284 KB Output is correct
16 Correct 2 ms 8136 KB Output is correct
17 Correct 2 ms 8284 KB Output is correct
18 Correct 2 ms 8284 KB Output is correct
19 Correct 2 ms 8284 KB Output is correct
20 Correct 2 ms 8116 KB Output is correct
21 Correct 2 ms 8284 KB Output is correct
22 Correct 4 ms 8284 KB Output is correct
23 Correct 5 ms 8284 KB Output is correct
24 Correct 5 ms 8284 KB Output is correct
25 Correct 4 ms 8284 KB Output is correct
26 Correct 4 ms 8284 KB Output is correct
27 Correct 5 ms 8280 KB Output is correct
28 Correct 4 ms 8284 KB Output is correct
29 Correct 4 ms 8284 KB Output is correct
30 Correct 4 ms 8284 KB Output is correct
31 Correct 4 ms 8428 KB Output is correct
32 Correct 5 ms 8284 KB Output is correct
33 Correct 4 ms 8540 KB Output is correct
34 Correct 3 ms 8284 KB Output is correct
35 Correct 3 ms 8280 KB Output is correct
36 Correct 4 ms 8536 KB Output is correct
37 Correct 3 ms 8284 KB Output is correct
38 Correct 4 ms 8284 KB Output is correct

Subtask #3
80.0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 8280 KB Output is correct
2 Correct 2 ms 8284 KB Output is correct
3 Correct 2 ms 8284 KB Output is correct
4 Correct 2 ms 8284 KB Output is correct
5 Correct 2 ms 8284 KB Output is correct
6 Correct 2 ms 8284 KB Output is correct
7 Correct 3 ms 8284 KB Output is correct
8 Correct 2 ms 8284 KB Output is correct
9 Correct 2 ms 8284 KB Output is correct
10 Correct 2 ms 8284 KB Output is correct
11 Correct 2 ms 8284 KB Output is correct
12 Correct 2 ms 8284 KB Output is correct
13 Correct 2 ms 8284 KB Output is correct
14 Correct 2 ms 8284 KB Output is correct
15 Correct 3 ms 8284 KB Output is correct
16 Correct 2 ms 8136 KB Output is correct
17 Correct 2 ms 8284 KB Output is correct
18 Correct 2 ms 8284 KB Output is correct
19 Correct 2 ms 8284 KB Output is correct
20 Correct 2 ms 8116 KB Output is correct
21 Correct 2 ms 8284 KB Output is correct
22 Correct 4 ms 8284 KB Output is correct
23 Correct 5 ms 8284 KB Output is correct
24 Correct 5 ms 8284 KB Output is correct
25 Correct 4 ms 8284 KB Output is correct
26 Correct 4 ms 8284 KB Output is correct
27 Correct 5 ms 8280 KB Output is correct
28 Correct 4 ms 8284 KB Output is correct
29 Correct 4 ms 8284 KB Output is correct
30 Correct 4 ms 8284 KB Output is correct
31 Correct 4 ms 8428 KB Output is correct
32 Correct 5 ms 8284 KB Output is correct
33 Correct 4 ms 8540 KB Output is correct
34 Correct 3 ms 8284 KB Output is correct
35 Correct 3 ms 8280 KB Output is correct
36 Correct 4 ms 8536 KB Output is correct
37 Correct 3 ms 8284 KB Output is correct
38 Correct 4 ms 8284 KB Output is correct
39 Correct 198 ms 15012 KB Output is correct
40 Correct 188 ms 14916 KB Output is correct
41 Correct 189 ms 15080 KB Output is correct
42 Correct 168 ms 15192 KB Output is correct
43 Correct 182 ms 15188 KB Output is correct
44 Correct 209 ms 15428 KB Output is correct
45 Correct 306 ms 17236 KB Output is correct
46 Correct 246 ms 19024 KB Output is correct
47 Correct 80 ms 15564 KB Output is correct
48 Correct 71 ms 15864 KB Output is correct
49 Correct 159 ms 15696 KB Output is correct
50 Correct 70 ms 15900 KB Output is correct
51 Correct 166 ms 18640 KB Output is correct