#include using namespace std; typedef signed long long ll; #undef _P #define _P(...) (void)printf(__VA_ARGS__) #define FOR(x,to) for(x=0;x<(to);x++) #define FORR(x,arr) for(auto& x:arr) #define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++) #define ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) //------------------------------------------------------- int N; int A[202020],B[202020]; int ID[202020],IDnum[202020],IDs[202020]; int num[202020]; ll dp[202020]; int V[202020]; ll mo=1000000007; template class BIT { public: V bit[1< bt; void solve() { int i,j,k,l,r,x,y; string s; cin>>N; V[0]=-1<<30; FOR(i,N) V[i+1]=1<<30; int ma=0; FOR(i,N) { cin>>A[i]; x=lower_bound(V,V+N+1,A[i])-V; ID[i]=x; ma=max(ma,x); IDnum[i]=++num[x]; V[x]=A[i]; } IDs[1]=1; for(i=2;i<=ma;i++) IDs[i]=IDs[i-1]+num[i-1]; B[0]=-1<<30; FOR(i,N) B[IDs[ID[i]]+num[ID[i]]-IDnum[i]]=A[i]; ll ret=0; bt.add(0,1); FOR(i,N) { x=lower_bound(B+IDs[ID[i]-1],B+IDs[ID[i]],A[i]+1)-B; x--; dp[i]=(bt(x)-bt(IDs[ID[i]-1]-1)+mo)%mo; if(ID[i]==ma) ret+=dp[i]; bt.add(IDs[ID[i]]+num[ID[i]]-IDnum[i],dp[i]); } cout<