#include<bits/stdc++.h>
using namespace std;
const int maxn=1e5+10;
int n,m,a[maxn],f[maxn][30],y[maxn];
int themax(int x,int r){
    int mm=y[r-x];
    return max(f[x][mm],f[r-(1<<mm)+1][mm]);
}
inline int read()
{
	int x=0,f=1;char ch=getchar();
	while (ch<'0'||ch>'9'){if (ch=='-') f=-1;ch=getchar();}
	while (ch>='0'&&ch<='9'){x=x*10+ch-48;ch=getchar();}
	return x*f;
}
int main(){
    n=read(),m=read();
    for(int i=1;i<=n;i++){a[i]=read();f[i][0]=a[i];}
    for(int i=2;i<=n;i++){
        y[i]=y[i>>1]+1;
    }
    for(int j=1;(1<<j)<=n;j++){
        for(int i=1;i<=n-(1<<j)+1;i++){
            f[i][j]=max(f[i][j-1],f[i+(1<<(j-1))][j-1]);
        }
    }
    while(m--){
        int dx,dy;
        dx=read(),dy=read();
        cout<<themax(dx,dy)<<endl;
    }
    return 0;
}