#include <iostream>
#include <fstream>

using namespace std;

ifstream fin("rmq.in");
ofstream fout("rmq.out");


int n,m,i,x,y,l,k,j;
int rmq[100010][17];
int log[100010];

int main()
{
    fin>>n>>m;
    for(i=1;i<=n;++i) fin>>rmq[i][0];
    for(i=2;i<=n;++i) log[i]=log[i>>1]+1;

    for(k=1;(1<<k)<=n;++k)
        for(j=1;j+(1<<k)-1<=n;++j)
        {
            rmq[j][k]=min(rmq[j][k-1],rmq[j+(1<<(k-1))][k-1]);
        }

    for(;m;--m)
    {
        fin>>x>>y;
        l=log[y-x+1];
        fout<<min(rmq[x][l],rmq[x+1][l])<<'\n';
    }
    return 0;
}