#include #include using namespace std; using namespace atcoder; typedef long long int ll; typedef long double ld; #define FOR(i,l,r) for(ll i=l;i=l;i--) #define RREP(i,n) RFOR(i,0,n) #define ALL(x) x.begin(),x.end() #define P pair #define F first #define S second #define BS(A,x) binary_search(ALL(A),x) #define LB(A,x) (ll)(lower_bound(ALL(A),x)-A.begin()) #define UB(A,x) (ll)(upper_bound(ALL(A),x)-A.begin()) #define COU(A,x) (UB(A,x)-LB(A,x)) templateusing min_priority_queue=priority_queue,greater>; //using mint=modint1000000007; using mint=modint998244353; void chmax(ll&a,ll b){a=max(a,b);} void chmin(ll&a,ll b){a=min(a,b);} signed main(){ ll T;cin>>T; while(T--){ ll N;cin>>N; vectorA(N),B(N); REP(i,N)cin>>A[i];REP(i,N)cin>>B[i]; setS;REP(i,N)S.insert(A[i]); bool x=1; REP(i,N)x=x&&count(ALL(S),B[i])&&A[i]<=B[i]; vector>M(N);dsu D(N); REP(i,N)M[i][A[i]]++; REP(i,N-1)if(B[i]==B[i+1]){ ll u=D.leader(i),v=D.leader(i+1),r=D.merge(u,v); if(r==u)for(auto[key,val]:M[v])M[u][key]+=val; else for(auto[key,val]:M[u])M[v][key]+=val; } vector>X(N+1); REP(i,N)if(i==0||B[i-1]!=B[i])X[B[i]].emplace_back(i); RREP(v,N+1){ for(auto i:X[v]){ ll l=i,r=N-1; while(l!=r){ ll m=(l+r+1)/2;if(D.same(i,m))l=m;else r=m-1; } if(i&&B[i-1]>B[i]){ ll u=D.leader(i-1),v=D.leader(i),r=D.merge(u,v); if(r==u)for(auto[key,val]:M[v])M[u][key]+=val; else for(auto[key,val]:M[u])M[v][key]+=val; } if(lB[l]){ ll u=D.leader(l+1),v=D.leader(l),r=D.merge(l,l+1); if(r==u)for(auto[key,val]:M[v])M[u][key]+=val; else for(auto[key,val]:M[u])M[v][key]+=val; } //cout<