#include<cstdio>
#include<cmath>
#include<algorithm>

using namespace std;

int k,x,y,n,m,r[18][100002],i,j,loga[100002];

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