#include <fstream>
#include <cstring>
#include <iostream>

using namespace std;  
int n, m;
int log2[100001], rmq[100001][18];

int main(){
  cin>>n>>m;
  for(int i=1; i<=n; i++)
    cin>>rmq[i][0];
  for(int j=1; (1<<j)<=n; j++){
    for(int i=1; i+(1<<j)-1<=n; i++)
      rmq[i][j]=min(rmq[i][j-1],rmq[i+1<<(j-1)][j-1]);
  }
  log2[1]=0;
  for(int i=2; i<=n; i++)
    log2[i]=log2[i/2]+1;
  int x,y,exp;  
  for( int i=1; i<=m; i++){ 
    cin>>x>>y;
    exp=log2[y-x+1];
    cout<<min(rmq[x][exp],rmq[y-(1<<exp)+1][exp])<<'\n';
  }  
   
return 0;
}