#include<bits/stdc++.h>
#define rs now<<1|1
#define ls now<<1

using namespace std;

inline int read(){
	int x=0,f=0;
	char c=getchar();
	while(c<'0'||c>'9'){f|=(c=='-');c=getchar();}
	while(c>='0'&&c<='9'){x=(x<<3)+(x<<1)+c-'0';c=getchar();}
	return f?-x:x;
}

const int N=3e5+10;
const int Max=3e5+10;
struct edge{
	int to,ne,id;
	edge(int to=0,int ne=0,int id=0):
		to(to),ne(ne),id(id){;}
}a[Max<<1];
int h[N],cnt=1,tot,dfn[N],idx,low[N],stk[N],col[N],ans[N],res;
int top,n,m,T,bel[N],fr[N],to[N],siz[N],son[N],Son,ys[N],Tot;
vector < int > vec[N];

struct SegmentTree{
	int maxx[N<<2];
	void pushup(int now){maxx[now]=max(maxx[ls],maxx[rs]);};
	void build(int now,int l,int r){
		maxx[now]=0;
		if(l==r) return ;
		int mid=(l+r)>>1;
		build(ls,l,mid);
		build(rs,mid+1,r);
	}
	void update(int now,int l,int r,int to,int v){
		if(l==r) {
			maxx[now]+=v;
			return ;
		}
		int mid=(l+r)>>1;
		if(mid>=to) update(ls,l,mid,to,v);
		else update(rs,mid+1,r,to,v);
		pushup(now);
	}
	int get(){return maxx[1];}
	void clear(){build(1,1,Tot+5);}
	void change(int to,int v){update(1,1,Tot+5,to,v);}
}val,rev;

void Clear(vector < int > &v){
	vector < int > tmp;
	swap(tmp,v);
}

void clear(){
	val.clear();rev.clear();
	for(int i=1;i<=m;++i) ans[i]=0;
	for(int i=1;i<=cnt;++i) a[i]=edge();
	for(int i=1;i<=tot;++i) Clear(vec[i]);
	for(int i=1;i<=n+tot;++i) stk[i]=bel[i]=dfn[i]=low[i]=h[i]=siz[i]=son[i]=0;
	cnt=1;Tot=idx=top=tot=res=Son=0;
}

void Add(int x,int y,int z){
	if(cnt>=(Max<<1)) exit(0);
	a[++cnt]=edge(y,h[x],z);
	h[x]=cnt;
}

void tarjan(int x,int las){
	dfn[x]=low[x]=++idx;
	if(top>=N) exit(0);
	stk[++top]=x;
	for(int i=h[x];i;i=a[i].ne){
		if((las^1)==i) continue;
		if(!dfn[a[i].to]) {
			tarjan(a[i].to,i);
			low[x]=min(low[x],low[a[i].to]);
		}else low[x]=min(low[x],dfn[a[i].to]);
	}
	if(dfn[x]==low[x]){
		++tot;
		if(tot>=N) exit(0);
		while(stk[top+1]!=x) vec[tot].emplace_back(stk[top--]);
	}
}

void dfs1(int x,int y){
	siz[x]=vec[x-n].size();
	for(int i=h[x];i;i=a[i].ne) {
		if(a[i].to==y) continue;
		dfs1(a[i].to,x);
		siz[x]+=siz[a[i].to];
		son[x]=siz[son[x]]>siz[a[i].to]?son[x]:a[i].to;
	}
}

void ad(int x){val.change(x,1);rev.change(x,-1);}
void del(int x){val.change(x,-1);rev.change(x,1);}

void adds(int x,int y,int opt){
	for(auto i:vec[x-n]) 
		if(opt) ad(col[i]);
		else del(col[i]);
	for(int i=h[x];i;i=a[i].ne) if(a[i].to!=y&&a[i].to!=Son) adds(a[i].to,x,opt);
}

void dfs2(int x,int y,int opt,int down){
	int fa=0;
	for(int i=h[x];i;i=a[i].ne) {
		if(a[i].to!=son[x]&&a[i].to!=y) dfs2(a[i].to,x,0,down);
		else if(a[i].to==y) fa=a[i].id;
	}
	if(son[x]){
		dfs2(son[x],x,1,down);
		Son=son[x];
	}
	adds(x,y,1);
	ans[fa]=val.get()+rev.get()-down;
	if(!opt){Son=0;adds(x,y,0);}
}

void dfs3(int x,int y,int opt){
	for(auto i:vec[x-n]) {
		int tmp=col[i];
		if(opt) rev.change(tmp,1);
		else rev.change(tmp,-1);
	}
	for(int i=h[x];i;i=a[i].ne) if(a[i].to!=y) dfs3(a[i].to,x,opt);
}

int main(){
	T=read();
	while(T--){
		n=read();m=read();
		for(int i=1;i<=n;++i) {
			if(Tot>=n) return 0;
			ys[++Tot]=col[i]=read();
		}
		sort(ys+1,ys+1+Tot);Tot=unique(ys+1,ys+1+Tot)-ys-1;
		for(int i=1;i<=n;++i) col[i]=lower_bound(ys+1,ys+1+Tot,col[i])-ys;
		for(int i=1,x,y;i<=m;++i){
			fr[i]=x=read();
			to[i]=y=read();
			Add(x,y,i);
			Add(y,x,i);
		}
		for(int i=1;i<=n;++i) if(!dfn[i]) tarjan(i,cnt<<2);
		for(int i=1;i<=tot;++i) for(auto j:vec[i]) bel[j]=i+n;
		for(int i=1;i<=m;++i) 
			if(bel[fr[i]]!=bel[to[i]]) {
				if(!bel[fr[i]]||!bel[to[i]]) return 0;
				Add(bel[fr[i]],bel[to[i]],i);
				Add(bel[to[i]],bel[fr[i]],i);
			}
		for(int i=n+1;i<=n+tot;++i) 
			if(!siz[i]) {
				dfs1(i,0);
 				dfs3(i,0,1);
				int tmp=rev.get();
				res+=tmp;
				dfs2(i,0,0,tmp);
				dfs3(i,0,0);
			}
		for(int i=1;i<=m;++i) {
			printf("%d",ans[i]+res);
			if(i!=m) putchar(' ');
		}
		if(T) putchar('\n');
		clear(); 
	}
	return 0;
}