#include <fstream>
#include <iostream>
//#include <cstring>

using namespace std;

ifstream fin("rmq.in");
ofstream fout("rmq.out");
#define NMax 100002

long long i,j,k,m,n,nr,v[20][1000002],x,y,dif,dis,l,ram[100001];
//char sir1[5000],sir2[5000];

int main()
{
    fin>>n>>m;
    for(i=1;i<=n;i++)
    {
        fin>>v[0][i];
    }
    ram[1]=0;
    for(i=2;i<=n;i++)
    {
        ram[i]=ram[i/2]+1;
    }
    for(i=1;(1<<i)<=n;i++)
    {
        for(j=1;j<=n-(1<<i)+1;j++)
        {
            v[i][j]=min(v[i-1][j],v[i-1][j+1]);
        }
    }
    for(i=1;i<=m;i++)
    {
        fin>>x>>y;
        dif=y-x+1;
        l=ram[dif];
        k=dif-(1<<l);
        fout<<min(v[l][x],v[l][x+k])<<"\n";
    }
    return 0;
}