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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#532849#7477. 梦断 SCOI2017Crysfly0 0ms0kbC++175.6kb2024-08-25 13:18:412024-08-25 13:18:41

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  • [2024-08-25 13:18:41]
  • 评测
  • 测评结果:0
  • 用时:0ms
  • 内存:0kb
  • [2024-08-25 13:18:41]
  • 提交

answer

#include<bits/stdc++.h>
#define For(i,a,b) for(register int i=(a);i<=(b);++i)
#define Rep(i,a,b) for(register int i=(a);i>=(b);--i)
using namespace std;
inline int read()
{
	char c=getchar();int x=0;bool f=0;
	for(;!isdigit(c);c=getchar())f^=!(c^45);
	for(;isdigit(c);c=getchar())x=(x<<1)+(x<<3)+(c^48);
	if(f)x=-x;return x;
}

#define fi first
#define se second
#define pb push_back
#define mkp make_pair
typedef pair<int,int>pii;
typedef vector<int>vi;

#define N 200005
#define inf 0x3f3f3f3f

const int A=(1u<<31)-1;
int n,m,c[N],pa[N],l[N],r[N],dep[N];
int anc[N][18];
vi e[N];

int pre[N],suf[N],mn[N],mx[N],sz[N],tou[N];
int ch[N][2],fa[N],tag[N],col[N],ctag[N],stag[N];
#define ls(p) ch[p][0]
#define rs(p) ch[p][1]
void up(int u){
	if(!u)return;
	int l=ls(u),r=rs(u);
	pre[u]=l?pre[l]:u;
	suf[u]=r?suf[r]:u;
	sz[u]=sz[l]+sz[r]+1;
	mx[u]=mn[u]=dep[u];
	if(l) mx[u]=max(mx[u],mx[l]),mn[u]=min(mn[u],mn[l]);
	if(r) mx[u]=max(mx[u],mx[r]),mn[u]=min(mn[u],mn[r]);
	stag[u]=stag[l]|stag[r]|ctag[u];
}
void pt(int u,int c){if(u)tag[u]=c,col[u]=c;}
void down(int u){if(tag[u])pt(ls(u),tag[u]),pt(rs(u),tag[u]),tag[u]=0;}
bool chk(int x){return ch[fa[x]][1]==x;}
void rot(int x){
	int y=fa[x],z=fa[y],k=chk(x),s=ch[x][!k];
	down(z),down(y);
	if(z)ch[z][chk(y)]=x; fa[x]=z;
	ch[y][k]=s; if(s)fa[s]=y;
	ch[x][!k]=y; fa[y]=x; up(y),up(x);
}
void splay(int x,int to=0){
    if(!x)assert(!to);
    int qwq=0;
	while(fa[x]!=to){
		if(fa[fa[x]]!=to)rot(chk(x)^chk(fa[x])?x:fa[x]);
		rot(x);
		++qwq;
		if(qwq>n)exit(-1);
	}//up(x);
}
void cut(int x){
	if(!x)return;
	ch[fa[x]][chk(x)]=0,up(fa[x]),fa[x]=0;
}

void ins(int x,int y){
	if(!x||!y)return;
//	cout<<"ins "<<tou[x]<<" "<<tou[y]<<endl;
	splay(x),splay(y);
	if(!ls(x))return ls(x)=y,fa[y]=x,splay(y);
	x=ls(x);
	while(down(x),x){
		if(!rs(x))return rs(x)=y,fa[y]=x,splay(y);
		x=rs(x);
	}
}
void add(int x,int y){
	if(!x||!y)return;
//	cout<<"add "<<tou[x]<<' '<<tou[y]<<endl;
	splay(x),splay(y);
	int p=suf[x];
	if(!rs(p))return rs(p)=y,fa[y]=p,splay(y);
	p=rs(p);
	while(down(p),p){
		if(ls(p))p=ls(p);
		else return ls(p)=y,fa[y]=p,splay(y);
	} 
}

int top(int x){return x?splay(x),pre[x]:0;}
int nd[N],tp;
void dfs(int x,int c){
	down(x);
	if(ctag[x]>>c&1)nd[++tp]=tou[x],ctag[x]^=(1<<c);
	if(ls(x)&&(stag[ls(x)]>>c&1))dfs(ls(x),c);
	if(rs(x)&&(stag[rs(x)]>>c&1))dfs(rs(x),c);
	up(x);
}
int findrt(int x){
	int tp=top(l[x]);
	Rep(i,17,0)if(top(l[anc[x][i]])==tp)x=anc[x][i];
	return x;
}
void split(int l,int r){
	splay(l),splay(r,l);
	down(l),down(r);
}

int son[N][32];

void mdf1(int u,int c){
	int p=findrt(u);
	split(l[u],r[u]);
	if(col[l[u]]==c)return;
	int L=ls(l[u]),R=rs(r[u]),lstc=col[l[u]];
	cut(L),cut(R),add(L,R);
	up(r[u]),up(l[u]),splay(l[u]);
	
	int f=pa[u],rt=pa[p];
	splay(l[f]);
	if(f){
		splay(l[rt]);
		if(col[l[rt]]!=lstc){
			if(L) son[rt][lstc]=L;
			else if(R) son[rt][lstc]=R;
			else son[rt][lstc]=0,splay(l[rt]),ctag[l[rt]]&=(A^(1<<c)),up(l[rt]);
		}
	}
	
	int t=ls(r[u]);
	if(t) son[u][lstc]=t,ctag[l[u]]|=(1<<lstc),cut(t),up(r[u]),up(l[u]);
	col[l[u]]=col[r[u]]=c;
	if(son[u][c]) ctag[l[u]]&=(A^(1<<c)),ins(r[u],son[u][c]),son[u][c]=0;
	if(f){
		splay(l[f]);
		if(son[f][c]) add(son[f][c],l[u]);
		else son[f][c]=l[u],splay(l[f]),splay(r[f],l[f]),ctag[l[f]]|=(1<<c),up(l[f]);
		if(col[l[f]]==c) ctag[l[f]]&=(A^(1<<c)),son[f][c]=0,ins(r[f],l[u]);
	}
}

void mdf2(int u,int c){
	u=findrt(u); split(l[u],r[u]);
	if(col[l[u]]==c)return;
	int L=ls(l[u]),R=rs(r[u]),lstc=col[l[u]];
	cut(L),cut(R),add(L,R),splay(l[u]);
	int f=pa[u];
	splay(l[f]);
	if(f && col[l[f]]!=lstc){
		if(L) son[f][lstc]=L;
		else if(R) son[f][lstc]=R;
		else son[f][lstc]=0,splay(l[f]),ctag[l[f]]&=(A^(1<<lstc));
	}
	tp=0;
	splay(l[u]),dfs(l[u],c),pt(l[u],c);
	For(i,1,tp){
		int v=nd[i];
		ins(r[v],son[v][c]),son[v][c]=0;
	}
	if(f){
		splay(l[f]);
		if(son[f][c]) add(son[f][c],l[u]);
		else son[f][c]=l[u],splay(l[f]),splay(r[f],l[f]),ctag[l[f]]|=(1<<c),splay(l[f]);
		if(col[l[f]]==c) ctag[l[f]]&=(A^(1<<c)),son[f][c]=0,ins(r[f],l[u]);
	}
}

void output(int u){
	if(!u)return;
	output(ls(u));
	cout<<"u: "<<tou[u]<<" "<<dep[u]<<" "<<col[u]<<' '<<mx[u]<<" "<<mn[u]<<endl;
	down(u);
	output(rs(u));
	up(u);
}

void ask(int u){
	u=findrt(u); split(l[u],r[u]);
	int a=col[l[u]];
	int b=sz[ls(r[u])]/2+1;
	int c=max(mx[ls(r[u])],dep[l[u]])-min(mn[ls(r[u])],dep[l[u]])+1;
//	printf("a,b,c %d %d %d %d\n",u,a,b,c);
	printf("%d %d %d\n",a,b,c);
}

bool cmpc(int u,int v){return c[u]<c[v];}
void init(int u,int d){
	dep[l[u]]=dep[r[u]]=d;
	For(i,1,17)anc[u][i]=anc[anc[u][i-1]][i-1];
	for(auto v:e[u])anc[v][0]=u,init(v,d+1);
	sz[l[u]]=sz[r[u]]=1,tou[l[u]]=tou[r[u]]=u,col[l[u]]=col[r[u]]=c[u];
	rs(l[u])=r[u],fa[r[u]]=l[u],up(r[u]),up(l[u]);
	auto vec=e[u];
	for(int v:e[u]) vec.pb(v);
	sort(vec.begin(),vec.end(),cmpc);
	int siz=vec.size();
	For(i,0,siz-1)
		if(c[vec[i]]!=c[u]&&(i==0||c[vec[i-1]]!=c[vec[i]]))
			ctag[l[u]]|=1<<c[vec[i]];
	For(i,0,siz-1)
		if(!son[u][c[vec[i]]]&&c[vec[i]]!=c[u]) son[u][c[vec[i]]]=l[vec[i]];
	For(i,1,siz-1)
		if(c[vec[i-1]]==c[vec[i]]) add(r[vec[i-1]],l[vec[i]]);
	For(i,0,siz-1)
		if(c[vec[i]]==c[u]){ins(r[u],l[vec[i]]);break;}
}

signed main()
{
	mx[0]=-inf,mn[0]=inf;
	n=read();
	For(i,1,n)e[pa[i]=read()].pb(i);
	For(i,1,n)c[i]=read(),l[i]=i*2-1,r[i]=i*2;
	init(1,1);
//	exit(0);
	m=read();
	For(_,1,m){
		int o=read(),x=read();
		if(o==1)mdf1(x,read());
		if(o==2)mdf2(x,read());
		if(o==3)ask(x);
	//	if(o<=2)For(x,1,n)ask(x);
	//	output(l[2]);
	}
    return 0;
}

詳細信息

Subtask #1:

score: 0
Runtime Error

Test #1:

score: 0
Runtime Error

input:

1000
0 1 1 2 1 3 3 7 2 1 1 5 9 1 10 4 9 13 4 13 9 16 5 21 11 22 17 14 24 8 24 19 7 13 1 9 12 22 8 35 39 4 9 34 19 28 40 8 34 4 50 39 6 32 4 1 31 25 31 37 46 44 60 12 54 48 25 43 15 69 1 38 2 23 12 73 59 39 75 7 36 9 27 73 2 43 37 81 53 58 58 83 10 86 17 89 82 52 10 14 40 46 25 4 56 61 16 96 21 70 14...

output:


result:


Subtask #2:

score: 0
Runtime Error

Test #2:

score: 0
Runtime Error

input:

100000
0 1 1 1 4 3 4 6 2 4 5 4 9 3 14 3 10 14 16 9 5 14 3 6 13 12 12 21 19 26 21 13 19 26 32 8 5 2 5 30 3 1 12 21 6 44 1 10 32 31 47 1 44 34 9 38 12 44 47 1 3 30 12 62 15 56 5 1 53 3 69 57 53 12 9 58 8 77 20 76 18 63 59 61 80 42 30 70 33 16 38 5 28 42 91 88 85 7 38 98 7 100 1 93 91 103 25 66 95 24 8...

output:


result:


Subtask #3:

score: 0
Runtime Error

Test #9:

score: 0
Runtime Error

input:

100000
0 1 1 1 2 4 3 6 5 5 9 10 8 12 10 13 15 14 16 16 19 17 21 19 21 21 22 23 24 26 29 29 29 30 31 31 34 35 36 37 37 37 40 40 42 42 45 46 45 48 48 49 50 51 51 52 54 56 57 55 58 58 60 62 60 61 65 63 65 65 66 67 68 71 72 74 72 75 77 78 78 77 80 80 80 83 82 84 85 87 87 90 88 92 92 92 92 93 96 96 96 99...

output:


result: