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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#265907#7869. 建设终末树grass8cow0 1409ms719696kbC++174.7kb2023-11-25 22:19:532023-11-25 22:19:53

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你现在查看的是最新测评结果

  • [2023-11-25 22:19:53]
  • 评测
  • 测评结果:0
  • 用时:1409ms
  • 内存:719696kb
  • [2023-11-25 22:19:53]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
int n,m,q,N,O;
#define pb push_back
int ans[4010000];
struct DSU{
	int fa[2010],sz[2010];
	inline void build(){for(int i=1;i<=m;i++)fa[i]=i,sz[i]=1;}
	int F(int x){if(x==fa[x])return x;return fa[x]=F(fa[x]);}
	inline void mer(int u,int v){u=F(u),v=F(v);if(u==v)return;if(sz[u]<sz[v])swap(u,v);fa[v]=u,sz[u]+=sz[v];}
}wc[2010],fz[2010];
void ad(DSU &a,DSU b){for(int i=1;i<=m;i++)if(b.fa[i]!=i)a.mer(b.fa[i],i);}
namespace SAT2{
	int hd[16010000],nxt[44010000],to[44010000],sta[16010010],col[16001000],cn,scc;
	int dfn[16001000],low[16001000],top;bool vis[16001000];
	void add(int u,int v){nxt[++cn]=hd[u],to[cn]=v,hd[u]=cn;}
	void dfs(int x){
		dfn[x]=low[x]=++dfn[0],sta[++top]=x,vis[x]=1;
		for(int i=hd[x];i;i=nxt[i]){
			int v=to[i];
			if(!dfn[v])dfs(v),low[x]=min(low[x],low[v]);
			else if(vis[v])low[x]=min(low[x],dfn[v]);
		}
		if(dfn[x]==low[x]){
			col[x]=++scc,vis[x]=0;
			while(sta[top]!=x)col[sta[top]]=scc,vis[sta[top]]=0,top--;
			top--;
		}
	}
	void sol(){
		for(int i=1;i<=O;i++)if(!dfn[i])dfs(i);
		for(int i=1;i<=N;i++){
			if(col[i]==col[i+N]){puts("-1");exit(0);}
			ans[i]=(col[i]<col[i+N])?0:1;
		}
	}
}
int id[2010][2010];
vector<int>g[2010];int jr[2010];
int gg[500100][70],sg[501000];
struct ed{int u,v,i;};
vector<ed>T[20];
namespace Tree{
	int f[2010][20],d[2010],bel[2010];
	void dfs(int x){
		bel[++bel[0]]=x;
		for(int v:g[x])if(v!=jr[x]){
			jr[v]=f[v][0]=x;for(int i=1;i<20;i++)f[v][i]=f[f[v][i-1]][i-1];
			d[v]=d[x]+1,dfs(v);
		}
	}
	int lca(int u,int v){
		if(d[u]<d[v])swap(u,v);int a=d[u]-d[v];
		for(int i=10;i>=0;i--)if((a>>i)&1)
		u=f[u][i];if(u==v)return u;
		for(int i=10;i>=0;i--)if(f[u][i]!=f[v][i])u=f[u][i],v=f[v][i];
		return f[u][0];
	}
	int sz[2010];
	void pf(int o){
		memset(sz,0,sizeof(sz));int ii,uu;scanf("%d",&ii);for(int i=0;i<ii;i++)
		scanf("%d",&uu),sz[uu]=1;
		for(int i=n;i>=2;i--)sz[jr[bel[i]]]+=sz[bel[i]];
		for(int i=2;i<=n;i++){
			if(!sz[i])SAT2::add(id[i][o],id[i][o]+N);
			if(sz[i]==ii)SAT2::add(id[i][o]+N,id[i][o]);
		}
		for(int i=1;i<=n;i++){
			int hm=(int)g[i].size();
			if(hm==1)continue;
			for(int j=0;j+1<hm;j++){
				int v=g[i][j];
				O++,SAT2::add(O,(v!=jr[i])?(id[v][o]+N):id[i][o]);
				int v2=g[i][j+1];
				SAT2::add((v2!=jr[i])?id[v2][o]:(id[i][o]+N),O);
				if(j)SAT2::add(O,O-1);
			}
			for(int j=hm-1;j;j--){
				int v=g[i][j];
				O++,SAT2::add(O,(v!=jr[i])?(id[v][o]+N):id[i][o]);
				int v2=g[i][j-1];
				SAT2::add((v2!=jr[i])?id[v2][o]:(id[i][o]+N),O);
				if(j!=hm-1)SAT2::add(O,O-1);
			}
		}
	}
}
namespace DFZ{
	bool vis[2010];int sz[2010],fa[2010];
	int S,rt,mx;
	void dfs(int x,int f){
		sz[x]=1;int mm=-1;
		for(int v:g[x])if(v!=f&&!vis[v])dfs(v,x),sz[x]+=sz[v],mm=max(mm,sz[v]);
		mm=max(mm,S-sz[x]);
		if(mm<mx)mx=mm,rt=x;
	}
	int d[2010],f[2010][20],D,be[2010][20],sg[20];
	void dfs2(int x){
		sg[D]++,be[sg[D]][D]=x,sz[x]=1;
		for(int v:g[x])if(v!=f[x][D]&&!vis[v])f[v][D]=x,dfs2(v),sz[x]+=sz[v];
	}
	void so(int u){
		D=d[u],vis[u]=1;
		dfs2(u);
		for(int v:g[u])if(!vis[v])S=sz[v],mx=S+1,rt=-1,dfs(v,0),fa[rt]=u,d[rt]=d[u]+1,so(rt);
	}
	void ptsd(int u,int v,int w){
		int a=u,b=v;while(a!=b){if(d[a]<d[b])swap(a,b);a=fa[a];}
		T[d[a]].push_back((ed){u,v,w});
	}
	void build(){memset(vis,0,sizeof(vis)),S=n,mx=n+1,dfs(1,0);so(rt);}
	void push(){
		for(int i=0;i<13;i++)if(!T[i].empty()){
			for(int j=1;j<=n;j++)fz[j].build();
			for(ed t:T[i]){
				int w=t.i,fi=gg[w][1];
				for(int j=2;j<=sg[w];j++)fz[t.u].mer(fi,gg[w][j]),fz[t.v].mer(fi,gg[w][j]);
			}
			for(int j=sg[i];j>=1;j--){
				int u=be[j][i];
				if(f[u][i]&&f[u][i]!=u){
					ad(fz[f[u][i]],fz[u]);
					ad(wc[(jr[u]==f[u][i])?u:f[u][i]],fz[u]);
				}
			}
		}
	}
}
int va[60];
bool np[2010];
int main(){
	scanf("%d%d%d",&n,&m,&q);
	for(int i=2;i<=n;i++)for(int j=1;j<=m;j++)id[i][j]=(i-2)*m+j;
	for(int i=1,u,v;i<n;i++){
		scanf("%d%d",&u,&v);
		g[u].push_back(v),g[v].push_back(u);
	}
	Tree::dfs(1),DFZ::build();
	N=(n-1)*m;O=N*2;
	for(int i=1;i<=m;i++)Tree::pf(i);
	for(int i=2;i<=n;i++)wc[i].build();
	for(int i=1,st;i<=q;i++){
		scanf("%d",&st);for(int j=1;j<=st;j++)scanf("%d",&va[j]);
		scanf("%d",&sg[i]);
		for(int j=1;j<=sg[i];j++)scanf("%d",&gg[i][j]);
		for(int j=2;j<=st;j++)DFZ::ptsd(va[1],va[j],i);
	}
	DFZ::push();
	for(int i=2;i<=n;i++)for(int j=1;j<=m;j++)if(wc[i].fa[j]!=j){
		int u=id[i][j],v=id[i][wc[i].fa[j]];
		SAT2::add(u,v),SAT2::add(v,u);
		SAT2::add(u+N,v+N),SAT2::add(v+N,u+N);
	}
	SAT2::sol();
	for(int i=1;i<=m;i++){
		memset(np,0,sizeof(np));
		for(int j=2;j<=n;j++){if(ans[id[j][i]])np[j]=1;else np[jr[j]]=1;}
		int rt=-1;
		for(int j=1;j<=n;j++)if(!np[j])rt=j;
		printf("%d ",rt);
	}
	return 0;
}

Details

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Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 0
Wrong Answer
time: 1409ms
memory: 719696kb

input:

1999 1998 27199
1368 233
233 617
233 388
233 1127
1905 233
907 233
233 40
233 1325
233 1940
1739 233
501 233
233 33
735 233
233 283
233 1427
1992 233
233 632
233 685
1188 233
648 233
233 344
233 1321
986 233
848 233
770 233
256 233
164 233
936 233
1206 233
53 233
1054 233
1430 233
1714 233
86 233
11...

output:

-1

result:

wrong answer jury find the answer, but you don't.

Subtask #2:

score: 0
Wrong Answer

Test #8:

score: 0
Wrong Answer
time: 0ms
memory: 22100kb

input:

10 10 8
4 2
2 9
6 9
8 7
4 10
7 2
5 2
2 1
5 3
3 10 7 2
2 10 2
2 4 10
2 10 4
2 8 2
2 4 10
1 8
2 2 10
1 1
1 10
2 10 9
3 10 3 4
2 7 1
3 10 6 3
2 4 8
2 3 2
4 2 9 4 6
2 5 7
2 3 9
2 2 1
4 10 6 8 5
4 10 6 1 2
2 1 4
2 7 5
2 5 3
2 8 3

output:

2 2 10 10 2 4 8 2 1 10 

result:

wrong answer restrict 3 is not satisfied.

Subtask #3:

score: 0
Wrong Answer

Test #19:

score: 0
Wrong Answer
time: 83ms
memory: 80844kb

input:

500 498 5000
60 409
462 125
461 410
42 178
133 372
137 265
358 27
450 294
45 454
76 405
132 118
333 331
365 230
114 218
112 377
49 429
60 299
488 95
85 362
89 33
426 308
427 198
468 481
289 363
195 430
61 21
162 55
12 487
395 85
79 475
391 215
244 351
331 43
452 186
247 271
224 390
206 347
447 165
9...

output:

-1

result:

wrong answer jury find the answer, but you don't.

Subtask #4:

score: 0
Skipped

Dependency #2:

0%

Subtask #5:

score: 0
Skipped

Dependency #3:

0%

Subtask #6:

score: 0
Skipped

Dependency #1:

0%