#include <vector>
#include <iostream>
#include <fstream>
#include <cstring>
#include <cstdlib>
#include <string>
using namespace std;

#define INFILE "rmq.in" 
#define OUTFILE "rmq.out"
#define NMAX 100010
#define LOGMAX 20

ifstream fin(INFILE);
ofstream fout(OUTFILE);

int n, m, rmq[NMAX][LOGMAX];

int main() {
   fin >> n >> m;
   for(int i=0; i<n; i++)
      fin >> rmq[i][0];

   for(int j=1; (1<<j)<=n; j++) 
   for(int i=0; i+(1<<j)<=n; i++)
         rmq[i][j] = min(rmq[i][j-1], rmq[i+(1<<(j-1))][j-1]);

   int a, b, l, nr2;
   for(int i=0; i<m; i++)
   {
      fin >> a >> b;
      a--;
      b--;
      l = b-a+1;
      nr2 = -1;
      while(l) {
         nr2++;
         l>>=1;
      }
      fout << min(rmq[a][nr2], rmq[b-(1<<nr2)+1][nr2]) << '\n';
   }
   return 0;
}