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2020-01-19 11:09:00
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#include<bits/stdc++.h>
namespace ZDY{
    #pragma GCC optimize(3)
    #define il __inline__ __attribute__ ((always_inline))
    #define register
    #define ll long long
    #define ull unsigned long long
    #define db double
    #define sht short
    #define MB template <class T>il
    #define Fur(i,x,y) for(int i(x);i<=y;++i)
    #define Fdr(i,x,y) for(int i(x);i>=y;--i)
    #define fl(i,x) for(int i(head[x]),to;to=e[i].to,i;i=e[i].nxt)
    #define clr(x,y) memset(x,y,sizeof(x))
    #define cpy(x,y) memcpy(x,y,sizeof(x))
    #define fin(s) freopen(s".in","r",stdin)
    #define fout(s) freopen(s".out","w",stdout)
    #define fcin ios::sync_with_stdio(false)
    #define l2(n) ((int)(log2(n)))
    #define inf 2122219134
    MB T ABS(T x){return x>0?x:-x;}
    MB T MAX(T x,T y){return x>y?x:y;}
    MB T MIN(T x,T y){return x<y?x:y;}
    MB T GCD(T x,T y){return y?GCD(y,x%y):x;}
    MB void SWAP(T &x,T &y){T t=x;x=y;y=t;}
}using namespace ZDY;using namespace std;
namespace IO{const int str=1<<20;static char in_buf[str],*in_s,*in_t;bool __=0;il char gc(){return (in_s==in_t)&&(in_t=(in_s=in_buf)+fread(in_buf,1,str,stdin)),in_s==in_t?__=1,EOF:*in_s++;}il void in(string &ch){ch.clear();if(__)return;char c;while((c=gc())!=EOF&&isspace(c));if(c==EOF){__=1;return;}ch+=c;while((c=gc())!=EOF&&!isspace(c))ch+=c;if(c==EOF)__=1;}il void in(char &ch){if(__)return;char c;while((c=gc())!=EOF&&isspace(c));if(c==EOF)__=1;else ch=c;}il void in(char *ch){*ch='\0';if(__)return;char c;while((c=gc())!=EOF&&isspace(c));if(c==EOF){__=1;return;}*ch=c;ch++;while((c=gc())!=EOF&&!isspace(c))*ch=c,ch++;if(c==EOF)__=1;*ch='\0';}template<typename T>il void in(T &x){if(__)return;char c=gc();bool f=0;while(c!=EOF&&(c<'0'||c>'9'))f^=(c=='-'),c=gc();if(c==EOF){__=1;return;}x=0;while(c!=EOF&&'0'<=c&&c<='9')x=x*10+c-48,c=gc();if(c==EOF)__=1;if(f)x=-x;}template<typename T,typename ... arr>il void in(T &x,arr & ... y){in(x),in(y...);}const char ln='\n';static char out_buf[str],*out_s=out_buf,*out_t=out_buf+str;il void flush(){fwrite(out_buf,1,out_s-out_buf,stdout);out_s=out_buf;}il void pt(char c){(out_s==out_t)?(fwrite(out_s=out_buf,1,str,stdout),*out_s++=c):(*out_s++=c);}il void out(const char* s){while(*s)pt(*s++);}il void out(char* s){while(*s)pt(*s++);}il void out(char c){pt(c);}il void out(string s){for(int i=0;s[i];i++)pt(s[i]);}template<typename T>il void out(T x){if(!x){pt('0');return;}if(x<0)pt('-'),x=-x;char a[50],t=0;while(x)a[t++]=x%10,x/= 10;while(t--)pt(a[t]+'0');}template<typename T,typename ... arr>il void out(T x,arr & ... y){out(x),out(y...);}}using namespace IO;
const int N=100011;
int n,m,bl[N],blk,a[N],ans[N],ANS[N],v[N],mx=0;
struct que{
    int l,r,a,b,id;
    il bool operator<(que t)const{
        return (bl[l]==bl[t.l])?((bl[l]&1)?(r<t.r):(r>t.r)):(l<t.l);
    }
}q[N];
struct bit{
    int s[N];
    il void add(int x,int v){
        for(int i=x;i<=mx;i+=i&-i)
            s[i]+=v;
    }
    il int get(int x){
        int res=0;
        for(int i=x;i;i-=i&-i)
            res+=s[i];
        return res;
    }
}A,B;
il void inc(int x){
    A.add(x,1);
    if(!v[x]++)B.add(x,1);
}
il void dec(int x){
    A.add(x,-1);
    if(!--v[x])B.add(x,-1);
}
int main(){
    in(n,m);blk=sqrt(n);
    Fur(i,1,n)in(a[i]),bl[i]=(i-1)/blk+1;
    Fur(i,1,m)in(q[i].l,q[i].r,q[i].a,q[i].b),q[i].id=i,mx=MAX(mx,q[i].b);
    sort(q+1,q+m+1);
    int l=1,r=0;
    Fur(i,1,m){
        while(l<q[i].l)dec(a[l++]);
        while(r<q[i].r)inc(a[++r]);
        while(l>q[i].l)inc(a[--l]);
        while(r>q[i].r)dec(a[r--]);
        ans[q[i].id]=A.get(q[i].b)-A.get(q[i].a-1);
        ANS[q[i].id]=B.get(q[i].b)-B.get(q[i].a-1);
    }
    Fur(i,1,m)out(ans[i]," ",ANS[i],ln);
    flush();
}
LG 4396 [AHOI2013]作业
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