#include <fstream>
using namespace std;
int n,m,v[100010],rmq[100010][32],x,y,pmax,p,mn,log2[100010];
int main() {
   ifstream f ("rmq.in");
   ofstream g ("rmq.out");
   f >> n >> m;
   while((1<<(pmax+1))<=n) pmax++;
   for(int i=1; i<=n; i++) {
      f >> v[i];
      rmq[i][0]=v[i];
   }
   for(int j=1; (1<<j)<=n; j++)
      for(int i=1; i<=n-(1<<j)+1; i++)
         rmq[i][j]=min(rmq[i][j-1],rmq[i+(1<<(j-1))][j-1]);
   for(int i=2;i<=n;i++){
      log2[i]=log2[i/2]+1;
   }
   for(int i=1; i<=m; i++) {
      f >> x >> y;
      g << min(rmq[x][log2[y-x+1]],rmq[y-(1<<log2[y-x+1])+1][log2[y-x+1]])<<"\n";
   }
   return 0;
}