oj.uz

답안 #970273

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
970273 2024-04-26T10:05:22 Z Thanhs Meetings 2 (JOI21_meetings2) C++14
100 / 100
 332 ms 21584 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 5 ms 8284 KB Output is correct
2 Correct 4 ms 8280 KB Output is correct
3 Correct 2 ms 8284 KB Output is correct
4 Correct 3 ms 8284 KB Output is correct
5 Correct 4 ms 8284 KB Output is correct
6 Correct 2 ms 8284 KB Output is correct
7 Correct 4 ms 8540 KB Output is correct
8 Correct 2 ms 8284 KB Output is correct
9 Correct 2 ms 8284 KB Output is correct
10 Correct 3 ms 8284 KB Output is correct
11 Correct 2 ms 8268 KB Output is correct
12 Correct 3 ms 8284 KB Output is correct
13 Correct 2 ms 8280 KB Output is correct
14 Correct 2 ms 8284 KB Output is correct
15 Correct 2 ms 8280 KB Output is correct
16 Correct 2 ms 8284 KB Output is correct
17 Correct 2 ms 8308 KB Output is correct
18 Correct 2 ms 8284 KB Output is correct
19 Correct 3 ms 8284 KB Output is correct
20 Correct 2 ms 8228 KB Output is correct
21 Correct 3 ms 8284 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 8284 KB Output is correct
2 Correct 4 ms 8280 KB Output is correct
3 Correct 2 ms 8284 KB Output is correct
4 Correct 3 ms 8284 KB Output is correct
5 Correct 4 ms 8284 KB Output is correct
6 Correct 2 ms 8284 KB Output is correct
7 Correct 4 ms 8540 KB Output is correct
8 Correct 2 ms 8284 KB Output is correct
9 Correct 2 ms 8284 KB Output is correct
10 Correct 3 ms 8284 KB Output is correct
11 Correct 2 ms 8268 KB Output is correct
12 Correct 3 ms 8284 KB Output is correct
13 Correct 2 ms 8280 KB Output is correct
14 Correct 2 ms 8284 KB Output is correct
15 Correct 2 ms 8280 KB Output is correct
16 Correct 2 ms 8284 KB Output is correct
17 Correct 2 ms 8308 KB Output is correct
18 Correct 2 ms 8284 KB Output is correct
19 Correct 3 ms 8284 KB Output is correct
20 Correct 2 ms 8228 KB Output is correct
21 Correct 3 ms 8284 KB Output is correct
22 Correct 4 ms 8408 KB Output is correct
23 Correct 4 ms 8284 KB Output is correct
24 Correct 4 ms 8284 KB Output is correct
25 Correct 4 ms 8284 KB Output is correct
26 Correct 4 ms 8408 KB Output is correct
27 Correct 4 ms 8488 KB Output is correct
28 Correct 4 ms 8412 KB Output is correct
29 Correct 4 ms 8408 KB Output is correct
30 Correct 4 ms 8284 KB Output is correct
31 Correct 5 ms 8280 KB Output is correct
32 Correct 5 ms 8540 KB Output is correct
33 Correct 5 ms 8536 KB Output is correct
34 Correct 3 ms 8536 KB Output is correct
35 Correct 3 ms 8280 KB Output is correct
36 Correct 4 ms 8284 KB Output is correct
37 Correct 3 ms 8284 KB Output is correct
38 Correct 4 ms 8280 KB Output is correct

Subtask #3
80.0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 8284 KB Output is correct
2 Correct 4 ms 8280 KB Output is correct
3 Correct 2 ms 8284 KB Output is correct
4 Correct 3 ms 8284 KB Output is correct
5 Correct 4 ms 8284 KB Output is correct
6 Correct 2 ms 8284 KB Output is correct
7 Correct 4 ms 8540 KB Output is correct
8 Correct 2 ms 8284 KB Output is correct
9 Correct 2 ms 8284 KB Output is correct
10 Correct 3 ms 8284 KB Output is correct
11 Correct 2 ms 8268 KB Output is correct
12 Correct 3 ms 8284 KB Output is correct
13 Correct 2 ms 8280 KB Output is correct
14 Correct 2 ms 8284 KB Output is correct
15 Correct 2 ms 8280 KB Output is correct
16 Correct 2 ms 8284 KB Output is correct
17 Correct 2 ms 8308 KB Output is correct
18 Correct 2 ms 8284 KB Output is correct
19 Correct 3 ms 8284 KB Output is correct
20 Correct 2 ms 8228 KB Output is correct
21 Correct 3 ms 8284 KB Output is correct
22 Correct 4 ms 8408 KB Output is correct
23 Correct 4 ms 8284 KB Output is correct
24 Correct 4 ms 8284 KB Output is correct
25 Correct 4 ms 8284 KB Output is correct
26 Correct 4 ms 8408 KB Output is correct
27 Correct 4 ms 8488 KB Output is correct
28 Correct 4 ms 8412 KB Output is correct
29 Correct 4 ms 8408 KB Output is correct
30 Correct 4 ms 8284 KB Output is correct
31 Correct 5 ms 8280 KB Output is correct
32 Correct 5 ms 8540 KB Output is correct
33 Correct 5 ms 8536 KB Output is correct
34 Correct 3 ms 8536 KB Output is correct
35 Correct 3 ms 8280 KB Output is correct
36 Correct 4 ms 8284 KB Output is correct
37 Correct 3 ms 8284 KB Output is correct
38 Correct 4 ms 8280 KB Output is correct
39 Correct 190 ms 17636 KB Output is correct
40 Correct 177 ms 17292 KB Output is correct
41 Correct 198 ms 17692 KB Output is correct
42 Correct 177 ms 17744 KB Output is correct
43 Correct 196 ms 17720 KB Output is correct
44 Correct 171 ms 17824 KB Output is correct
45 Correct 332 ms 19712 KB Output is correct
46 Correct 252 ms 21584 KB Output is correct
47 Correct 72 ms 18116 KB Output is correct
48 Correct 56 ms 18120 KB Output is correct
49 Correct 157 ms 18384 KB Output is correct
50 Correct 99 ms 18376 KB Output is correct
51 Correct 143 ms 21176 KB Output is correct