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| #include<bits/stdc++.h>
#define MAXN 3005
#define REG register
using namespace std;
inline void read(int& x){
static char c;
while(!isdigit(c=getchar()));x=c^48;
while(isdigit(c=getchar()))x=(x*10)+(c^48);
}
int n;
struct Edge{int v,nxt;}ed[MAXN<<1];
int head[MAXN],cnt;
inline void adde(int u,int v){ed[++cnt]=(Edge){v,head[u]},head[u]=cnt;}
inline void add(int u,int v){adde(u,v),adde(v,u);}
#define FORE(i,Now) for(REG int i=head[Now];i;i=ed[i].nxt)
int A[MAXN];
int Win[MAXN];
void dfs(int Now,int Fa){
int Min=1000000001;
FORE(i,Now){
int v=ed[i].v;
if(v==Fa) continue;
dfs(v,Now);
if(Win[v]) continue;
Min=A[v]<Min?A[v]:Min;
}
if(Min>=A[Now]) Win[Now]=0;
else Win[Now]=1;
}
inline void Work(){
read(n);
for(REG int i=1;i<=n;++i) read(A[i]);
for(REG int i=1;i<n;++i){int u,v;read(u),read(v),add(u,v);}
for(REG int i=1;i<=n;++i){
memset(Win,0,sizeof Win);
dfs(i,i);
if(Win[i]) printf("%d ",i);
}
}
int main(){Work();}
|
