#include<fstream>
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int n,d,l,m,x,y,i,j,k,lg[100100],a[100100][20];
int main()
{
    f>>n>>m;
    for(i=1;i<=n;++i)
    f>>a[i][0];
    for(i=2;i<=n;++i)
    lg[i]=lg[i>>1]+1;
    for(k=1;(1<<k)<=n;++k)
    {
        for(j=1;j<=n-(1<<k)+1;++j)
        a[j][k]=min(a[j][k-1],a[j+(1<<(k-1))][k-1]);
    }
    for(;m;--m)
    {
        f>>x>>y;
        d=y-x+1;
        l=lg[d];
        g<<min(a[x][l],a[x+d-(1<<l)][l])<<'\n';
    }
    return 0;
}