oj.uz

답안 #532872

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
532872 2022-03-04T06:58:00 Z Koosha_mv Meetings 2 (JOI21_meetings2) C++14
100 / 100
 625 ms 28204 KB 
#include <bits/stdc++.h>
using namespace std;
#define dbgv(v) cout<<#v<<" = "; f(i,0,v.size()) cout<<v[i]<<" "; cout<<endl
#define dbga(a,x,y) cout<<#a<<" = "; f(i,x,y) cout<<a[i]<<" "; cout<<endl
#define erorp(x) cout<<#x<<"={"<<(x.F)<<" , "<<x.S<<"}"<<endl
#define eror(x) cout<<#x<<'='<<(x)<<endl
#define f_(i,a,b) for(int i=a;i>=b;i--)
#define f(i,a,b) for(int i=a;i<b;i++)
#define nb(x) __builtin_popcount(x)
#define all(v) v.begin(),v.end()
#define bit(n,k) (((n)>>(k))&1)
#define Add(x,y) x=(x+y)%mod
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define lst(x) x[x.size()-1]
#define sz(x) int(x.size())
#define mp make_pair
#define ll long long
#define pb push_back
#define S second
#define F first

const int N=2e5+99;

int n,t,prt,a[N],b[N],sz[N],mark[N],ans[N];
vector<int> g[N];

void dfs1(int u,int p,int s,int &cent){
	sz[u]=1;
	for(auto v : g[u]){
		if(v==p || mark[v]) continue ;
		dfs1(v,u,s,cent);
		sz[u]+=sz[v];
	}
	if(sz[u]>=s && (cent==0 || sz[u]<sz[cent])){
		cent=u;
	}
}
void dfs2(int u,int p,int h){
	maxm(a[sz[u]],h);
	for(auto v : g[u]){
		if(v==p || mark[v]) continue ;
		dfs2(v,u,h+1);
	}
}
void solve(int rt,int m=n){
	if(m==1) return ;
	int cent=0;
	dfs1(rt,rt,(m+1)/2,cent);
	dfs1(cent,cent,0,prt);
	mark[cent]=1;
	f(i,1,sz[cent]+1) b[i]=-N;
	for(auto v : g[cent]){
		if(mark[v]) continue ;
		f(i,1,sz[v]+1) a[i]=-N;
		dfs2(v,v,1);
		f_(i,sz[v]-1,1) maxm(a[i],a[i+1]);
		//cout<<v<<" : "<<endl;
		//dbga(a,1,sz[v]+1);
		f(i,1,sz[v]+1){
			maxm(ans[i],a[i]+b[i]+1);
			maxm(b[i],a[i]);
			//cout<<i<<" -> "<<sz[v]<<endl;
			if(i<=m-sz[v]){
				maxm(ans[i],b[i]+1);
			}
		}
	}
	for(auto v : g[cent]){
		if(mark[v]) continue ;
		solve(v,sz[v]);
	}
}
main(){
	ios:: sync_with_stdio(0), cin.tie(0), cout.tie(0);
	cin>>n;
	f(i,1,n){
		int u,v;
		cin>>u>>v;
		g[u].pb(v);
		g[v].pb(u);
	}	
	solve(1);
	f(i,1,n+1){
		if(i&1) cout<<1<<'\n';
		else{
			cout<<max(1,ans[i/2])<<'\n';
		}
	}
}

Compilation message

meetings2.cpp:74:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   74 | main(){
      | ^~~~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 2 ms 5000 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 3 ms 4940 KB Output is correct
8 Correct 3 ms 4940 KB Output is correct
9 Correct 2 ms 4940 KB Output is correct
10 Correct 3 ms 4940 KB Output is correct
11 Correct 3 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 3 ms 5024 KB Output is correct
21 Correct 2 ms 4940 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 2 ms 5000 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 3 ms 4940 KB Output is correct
8 Correct 3 ms 4940 KB Output is correct
9 Correct 2 ms 4940 KB Output is correct
10 Correct 3 ms 4940 KB Output is correct
11 Correct 3 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 3 ms 5024 KB Output is correct
21 Correct 2 ms 4940 KB Output is correct
22 Correct 6 ms 5168 KB Output is correct
23 Correct 5 ms 5164 KB Output is correct
24 Correct 6 ms 5172 KB Output is correct
25 Correct 6 ms 5168 KB Output is correct
26 Correct 6 ms 5168 KB Output is correct
27 Correct 5 ms 5196 KB Output is correct
28 Correct 6 ms 5196 KB Output is correct
29 Correct 6 ms 5196 KB Output is correct
30 Correct 6 ms 5196 KB Output is correct
31 Correct 6 ms 5196 KB Output is correct
32 Correct 9 ms 5324 KB Output is correct
33 Correct 7 ms 5452 KB Output is correct
34 Correct 6 ms 5228 KB Output is correct
35 Correct 6 ms 5196 KB Output is correct
36 Correct 6 ms 5196 KB Output is correct
37 Correct 5 ms 5196 KB Output is correct
38 Correct 6 ms 5324 KB Output is correct

Subtask #3
80.0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 2 ms 5000 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 3 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 3 ms 4940 KB Output is correct
8 Correct 3 ms 4940 KB Output is correct
9 Correct 2 ms 4940 KB Output is correct
10 Correct 3 ms 4940 KB Output is correct
11 Correct 3 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 3 ms 4940 KB Output is correct
15 Correct 3 ms 4940 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 3 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 3 ms 5024 KB Output is correct
21 Correct 2 ms 4940 KB Output is correct
22 Correct 6 ms 5168 KB Output is correct
23 Correct 5 ms 5164 KB Output is correct
24 Correct 6 ms 5172 KB Output is correct
25 Correct 6 ms 5168 KB Output is correct
26 Correct 6 ms 5168 KB Output is correct
27 Correct 5 ms 5196 KB Output is correct
28 Correct 6 ms 5196 KB Output is correct
29 Correct 6 ms 5196 KB Output is correct
30 Correct 6 ms 5196 KB Output is correct
31 Correct 6 ms 5196 KB Output is correct
32 Correct 9 ms 5324 KB Output is correct
33 Correct 7 ms 5452 KB Output is correct
34 Correct 6 ms 5228 KB Output is correct
35 Correct 6 ms 5196 KB Output is correct
36 Correct 6 ms 5196 KB Output is correct
37 Correct 5 ms 5196 KB Output is correct
38 Correct 6 ms 5324 KB Output is correct
39 Correct 421 ms 17208 KB Output is correct
40 Correct 399 ms 17004 KB Output is correct
41 Correct 389 ms 17260 KB Output is correct
42 Correct 397 ms 17348 KB Output is correct
43 Correct 377 ms 17348 KB Output is correct
44 Correct 399 ms 17348 KB Output is correct
45 Correct 625 ms 23320 KB Output is correct
46 Correct 477 ms 28204 KB Output is correct
47 Correct 185 ms 17020 KB Output is correct
48 Correct 89 ms 16384 KB Output is correct
49 Correct 315 ms 18124 KB Output is correct
50 Correct 124 ms 17636 KB Output is correct
51 Correct 279 ms 26944 KB Output is correct