#include #define rep(i,n) for(int i=0;i<(n);i++) using namespace std; template class segment_tree{ int sz; vector seg; public: segment_tree(){} segment_tree(int n){ build(n); } template segment_tree(const vector& a){ build(a); } void build(int n){ for(sz=1;sz void build(const vector& a){ int n=a.size(); build(n); rep(i,n) seg[sz+i]=a[i]; for(int i=sz-1;i>0;i--){ seg[i]=seg[2*i]*seg[2*i+1]; } } const M& operator[](int i)const{ return seg[sz+i]; } void update(int i,const M& x){ i+=sz; seg[i]=x; for(i>>=1;i>0;i>>=1) seg[i]=seg[2*i]*seg[2*i+1]; } M get(int l,int r)const{ M lcum,rcum; for(int a=l+sz,b=r+sz;a>=1,b>>=1){ if(a&1) lcum=lcum*seg[a++]; if(b&1) rcum=seg[--b]*rcum; } return lcum*rcum; } template N query(int l,int r,const F& f){ N lcum,rcum; for(int a=l+sz,b=r+sz;a>=1,b>>=1){ if(a&1) lcum=lcum*f(seg[a++]); if(b&1) rcum=f(seg[--b])*rcum; } return lcum*rcum; } }; template class max_monoid{ T a; public: max_monoid():a(numeric_limits::min()){} max_monoid(const T& val):a(val){} max_monoid operator*(const max_monoid& x)const{ return max(a,x.a); } T& get(){ return a; } const T& get()const{ return a; } }; template class add_monoid{ T a; public: add_monoid():a(){} add_monoid(const T& val):a(val){} add_monoid operator*(const add_monoid& x)const{ return a+x.a; } T& get(){ return a; } const T& get()const{ return a; } }; template class sequence_monoid{ vector a; public: sequence_monoid(){} sequence_monoid(const T& val):a(1,val){} sequence_monoid(const vector& x):a(x){ sort(a.begin(),a.end()); } sequence_monoid operator*(const sequence_monoid& x)const{ vector res; merge(a.begin(),a.end(),x.a.begin(),x.a.end(),back_inserter(res)); return res; } int f(int t){ return lower_bound(a.begin(),a.end(),t)-a.begin(); } }; const int INF=1<<29; int main(){ int n,q; scanf("%d%d",&n,&q); vector a(n+1); a[0]=INF; rep(i,n) scanf("%d",&a[i+1]); vector pos(n); segment_tree> S1(a); rep(i,n){ int lo=0,hi=i+1; while(hi-lo>1){ int mi=(lo+hi)/2; if(S1.get(mi,i+1).get()>a[i+1]) lo=mi; else hi=mi; } pos[i]=lo-1; } segment_tree> S2(pos); rep(_,q){ int l,r; scanf("%*d%d%d",&l,&r); l--; auto ans=S2.query>(l,r,[&](sequence_monoid& x)->add_monoid{ return x.f(l); }); printf("%d\n",ans.get()); } return 0; }