#include<cstdio>
#include<fstream>
using namespace std;
int nr[18][100100],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);
	ofstream g("rmq.out");
	int n,m,i,j,x,y;
	scanf("%d%d",&n,&m);
	scanf("%d",&nr[0][1]);
	for(i=2;i<=n;++i){
		scanf("%d",&nr[0][i]);
		log[i]=log[i>>1]+1;
	}
	for(j=1;(1<<j)<=n+1;++j){
		for(i=1;i+(1<<j)<=n+1;++i){
			nr[j][i]=min(nr[j-1][i],nr[j-1][i+(1<<(j-1))]);
		}
	}
	for(i=0;i<m;++i){
		scanf("%d%d",&x,&y);
		j=log[y-x+1];
		g<<min(nr[j][x],nr[j][y-(1<<j)+1])<<'\n';
	}
	
	fclose(stdin);
	fclose(stdout);
	return 0;
}