#include <cstdio>

using namespace std;
const int N=100005;
const int M=18;
int rmq[M][N];
int v[N],lg[N];
int min1(int x,int y)
{
    if(x==0)
        x=9999999;
    if(y==0)
        y=9999999;
    if(x<y)
        return x;
    else
        return y;
}
int main()
{
    FILE *in,*out;
    in=fopen("rmq.in","r");
    out=fopen("rmq.out","w");
    int n,m,i,pow,j,k,x,y,l,dif,ras;
    fscanf(in,"%d %d",&n,&m);
    for(i=1;i<=n;i++)
    {
        fscanf(in,"%d",&rmq[0][i]);
        lg[i]=lg[i/2]+1;
    }
    for(i=1;(1<<i)<=n;i++)
    {
        pow=1<<i;
        for(j=pow;j<=n;j++)
        {
            rmq[i][j]=min1(rmq[i-1][j],rmq[i-1][j-pow/2]);
        }
    }
    for(k=1;k<=m;k++)
    {
        fscanf(in,"%d%d",&x,&y);
        dif=y-x;
        l=lg[dif];
        ras=min1(rmq[l-1][y],rmq[l-1][x+l-1]);
        fprintf(out,"%d\n",ras);
    }
    return 0;
}