#include<fstream>
using namespace std;
int nr[100100][18],log[100100];
inline int min(int a,int b){
	return a<b?a:b;
}
int main(){
	//freopen("rmq.in","r",stdin);
	//freopen("rmq.out","w",stdout);
	ifstream f("rmq.in");
	ofstream g("rmq.out");
	int n,m,i,j,lung,x,y;
	//scanf("%d%d",&n,&m);
	//scanf("%d",&v[1]);
	f>>n>>m;
	f>>nr[1][0];
	for(i=2;i<=n;++i){
		//scanf("%d",&v[i]);
		f>>nr[i][0];
		log[i]=log[i>>1]+1;
	}
	for(lung=0;(1<<lung)<=n;++lung);
	for(i=n;i;--i){
		for(j=1;i+(1<<j)<=n;++j)
			nr[i][j]=min(nr[i][j-1],nr[i+(1<<(j-1))][j-1]);
	}
	
	for(i=0;i<m;++i){
		//scanf("%d%d",&x,&y);
		f>>x>>y;
		j=log[y-x+1];
		//printf("%d\n",min(nr[x][j],nr[y-(1<<j)+1][j]));
		g<<min(nr[x][j],nr[y-(1<<j)+1][j])<<'\n';
	}
	
	fclose(stdin);
	fclose(stdout);
	return 0;
}