#include <fstream>

using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int a[100001][20],lg[100001],n,m,i,j,x,y,l;
int main()
{
    f>>n>>m;
    for (i=1;i<=n;i++)
      f>>a[i][0];
    lg[1]=0;
    for (i=2;i<=n;i++)
      lg[i]=lg[i/2]+1;
    for (j=1;(1<<j)<=n;j++)
        for (i=1;i+(1<<(j-1))<=n;i++)
        a[i][j]=min(a[i][j-1],a[i+(1<<(j-1))][j-1]);
    for (i=1;i<=m;i++)
    {
      f>>x>>y;
      l=y-x+1;
      l=lg[l];
      g<<min(a[x][l],a[x+y-(1<<l)][l])<<'\n';
    }
    return 0;
}