#include<fstream>
#include<math.h>
#define lim 100001
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int n,m,A[22][lim],pr[lim],i,j,x,y,t;
int min(int a,int b){
	if(a<b)
		return a;
	return b;
}
void  rmq(){
	for(i=2;i<=n;i++)
		pr[i]=pr[i/2]+1;
	for(i=1;(1<<i)<=n ;i++){
		
		for(j=1; j+(1<<i)-1<=n;j++){
			
			A[i][j]=min(  A[i-1][j],A[i-1][j+(1<<(i-1))] );
		}
		
	}
	for(i=1;i<=m;i++){
		f>>x>>y;
		t=pr[y-x+1];
		g<<min(A[t][x] , A[t][y+1-(1<<t)])<<"\n";
	}
	
}
int main (){
	f>>n>>m;
	for(i=1;i<=n;i++)
		f>>A[0][i];
	rmq();
	return 0;
}