#include <bits/stdc++.h>

using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int n,m,rmq[100005][20],i,nr,j,x,y,k;
int main()
{
    f>>n>>m;
    for (i=1;i<=n;i++)
    {
        f>>rmq[i][0];
    }
    nr=log2(n);
    for (i=1;i<=nr;i++)
    {
        for (j=1;j<=n-(1<<i)+1;j++)
        {
            rmq[j][i]=min(rmq[j][i-1],rmq[j+(1<<(i-1))][i-1]);
        }
    }
    for (i=1;i<=m;i++)
    {
        f>>x>>y;
        if (x>y)
        {
            swap(x,y);
        }
        if (x==y)
        {
            g<<rmq[x][0]<<'\n';
        }
        k=log2(y-x);
        g<<min(rmq[x][k],rmq[y-(1<<k)+1][k])<<'\n';
    }
    return 0;
}