This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<stdio.h>
#include<algorithm>
using namespace std;
int N,M,QQ,P[200001],c,S[100001],Count[200001],T[1001],E2[200001][2],Q[200001];
int s[200001],l[200001],num[200001],End[200001],Save[100001],ord[200001];
struct stack{
int a,b;
}st[200001];
struct Edge{
int x,y,z;
bool operator <(const Edge &p)const{
return x!=p.x?x<p.x:y<p.y;
}
}E[400001];
bool connect[100001],v[200001];
void DFS()
{
int i,top=0,C=0;
st[++top].a=1,st[top].b=s[1],num[1]=++C;
v[1]=true;
while(1){
while(top){
while(st[top].b!=l[st[top].a]&&v[E[st[top].b].y])st[top].b++;
if(st[top].b!=l[st[top].a])break;
End[st[top].a]=C;
top--;
}
if(!top)break;
st[top+1].a=E[st[top].b++].y;
top++;
st[top].b=s[st[top].a];
num[st[top].a]=++C;
v[st[top].a]=true;
}
for(i=1;i<=N;i++)ord[num[i]]=i;
}
void BFS(int a)
{
int h=0,t=0,i,x;
Q[++t]=a,P[a]=a;
while(h<t)
{
x=Q[++h];
for(i=s[x];i<l[x];i++){
if(!P[E[i].y] && connect[E[i].z]){
Q[++t]=E[i].y;
P[E[i].y]=a;
Count[Q[t]]=Count[a];
}
}
}
}
void Do()
{
int i,j,cc=0,a,b;
for(i=0;i<c;i++){
T[cc++]=E2[S[i]][0];
T[cc++]=E2[S[i]][1];
}
for(i=0;i<c;i++){
a=T[i*2],b=T[i*2+1];
if(num[b]<num[a])swap(a,b);
connect[S[i]]=!connect[S[i]];
if(connect[S[i]])
{
Count[P[a]]=Count[P[a]]+Count[b]-Save[S[i]];
for(j=0;j<cc;j++){
if(P[T[j]]==P[a]||P[T[j]]==b)Count[T[j]]=Count[P[a]],P[T[j]]=P[a];
}
}
else
{
for(j=0;j<cc;j++){
if(P[T[j]]==P[a] && num[T[j]]>=num[b] && num[T[j]]<=End[b])P[T[j]]=b;
}
Save[S[i]]=Count[b];
}
}
for(i=1;i<=N;i++)P[i]=0;
for(i=1;i<=N;i++){
if(!P[ord[i]])BFS(ord[i]);
}
}
void init()
{
int i,t;
for(i=1;i<=N;i++)P[i]=i,Count[i]=1;
t=E[0].x;
for(i=1;i<c;i++){
if(E[i].x!=t){
s[E[i].x]=l[t]=i;
t=E[i].x;
}
}
l[t]=i;
DFS();
}
int main()
{
scanf("%d%d%d",&N,&M,&QQ);
int i;
c=0;
for(i=1;i<N;i++)
{
scanf("%d%d",&E[c].x,&E[c].y);
E2[i][0]=E[c].x,E2[i][1]=E[c].y;
E[c++].z=i;
E[c].x=E[c-1].y,E[c].y=E[c-1].x,E[c++].z=i;
}
sort(E,E+c);
init();
c=0;
while(M--){
scanf("%d",&S[c++]);
if(c==500){
Do();
c=0;
}
}
Do();
while(QQ--){
scanf("%d",&i);
printf("%d\n",Count[P[i]]);
}
}
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