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| #include<bits/stdc++.h> #define re register typedef long long ll; template<class T> inline void read(T &x) { x=0; char ch=getchar(),t=0; while(ch<'0'||ch>'9') t|=ch=='-',ch=getchar(); while(ch>='0'&&ch<='9') x=(x<<3)+(x<<1)+(ch^48),ch=getchar(); if(t) x=-x; } template<class T,class ...T1> inline void read(T &x,T1 &...x1){ read(x),read(x1...); } template<class T> inline void write(T x) { if(x<0) putchar('-'),x=-x; if(x>9) write(x/10); putchar(x%10+'0'); } template<> inline void write(bool x){ std::cout<<x; } template<> inline void write(char c){ putchar(c); } template<> inline void write(char *s){ while(*s!='\0') putchar(*s++); } template<> inline void write(const char *s){ while(*s!='\0') putchar(*s++); } template<class T,class ...T1> inline void write(T x,T1 ...x1){ write(x),write(x1...); } template<class T> inline bool checkMax(T &x,T y){ return x<y?x=y,1:0; } template<class T> inline bool checkMin(T &x,T y){ return x>y?x=y,1:0; } const int MAXN=1e6+10; int N,T,L,R; int main() { freopen("star.in","r",stdin); freopen("star.out","w",stdout); read(N,T); for(int i=1;i<=N;++i) read(a[i].pos),a[i].id=i; for(int i=1;i<=T;++i) read(Ai[i].x,Ai[i].y,Ai[i].z); std::sort(a+1,a+N+1); read(L,R); int l=1,r=N,res=1; while(l<=r) { int mid=(l+r)>>1; if(check(mid)>=L) res=mid,r=mid-1; else l=mid+1; } int ansl=res; l=1,r=N,res=N; while(l<=r) { int mid=(l+r)>>1; if(check(mid)<=R) res=mid,l=mid+1; else r=mid-1; } l=ansl,r=res; write(std::max(0,r-l+1),'\n'); for(int i=l;i<=r;++i) ans.push_back(a[i].id); std::sort(ans.begin(),ans.end()); for(int x:ans) write(x,' '); return 0; }
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