#include <fstream>
using namespace std;
int n,m,i,arb[200005],x,a,b;
int main()
{
ifstream f("rmq.in");
ofstream g("rmq.out");
 f>>n>>m;
  for(i=0;i<n;i++)
  f>>arb[i+n];
  for(i=n-1;i>0;i--)
    arb[i]=min(arb[i*2],arb[i*2+1]);
for(i=1;i<=m;i++)
{
      f>>a>>b;a+=n-1;b+=n-1;
       x=200000000;
        for(;a<=b;)
        { x=min(x,min(arb[a],arb[b]));
            b=(b-1)/2;
            a=(a+1)/2;
        }
        g<<x<<'\n';
}
}