/* 
 * File:   main.cpp
 * Author: petru
 *
 * Created on September 9, 2010, 1:31 PM
 */

#include <cstdio>
#define  DN 100002
#define DL 18
#define p2(i) 1<<(i)
#include <iostream>
using namespace std;

int rmq[DL][DN],lg[DN];

/*
 * 
 */

int query(int x,int y){
    int dif=y-x+1,l=lg[dif],d=dif-p2(l);
    return min(rmq[l][x],rmq[l][d+x]);

}

int main() {
    int n,m,i,j,l,x,y;
    freopen("rmq.in", "r", stdin);
    freopen("rmq.out", "w", stdout);
    scanf("%d %d",&n,&m);
    for(i=1; i<=n;++i) scanf("%d",&rmq[0][i]);
    for(lg[1]=0,i=2;i<=n;++i) lg[i]=lg[i/2]+1;
    for(i=1; p2(i)<=n;++i)
        for(j=1; j<=n-p2(i)+1;++j){
            l=p2(i-1);
            rmq[i][j]=min(rmq[i-1][j],rmq[i-1][j+l]);
        }
    for(i=1; i<=m; ++i) {
        scanf("%d %d",&x,&y);
        printf("%d\n",query(x,y));
    }
    return 0;
}