#include<fstream>
using namespace std;
int v[400020],n,m,i,op,x,y,q,mx=999999;
void change(int nod,int st,int dr)
{
    if(st==dr)
    {
        v[nod]=y;
        return;
    }
        int mij=(st+dr)/2;
        if(x<=mij) change(2*nod,st,mij);
        else change(2*nod+1,mij+1,dr);
        v[nod]=min(v[nod*2],v[nod*2+1]);
}
void minim(int nod,int st,int dr)
{
    if(st>=x&&dr<=y)
    {
        if(v[nod]<mx) mx=v[nod];
        return;
    }
    else
    {
        int mij=(st+dr)/2;
        if(x<=mij) minim(2*nod,st,mij);
        if(y>mij)  minim(2*nod+1,mij+1,dr);
    }
}
int main()
{
    freopen("rmq.in","r",stdin);
    freopen("rmq.out","w",stdout);
    scanf("%d", &n);
    scanf("%d", &q);
    for(i=1;i<=n;++i)
    {
        scanf("%d", &y); x=i;
        change(1,1,n);
    }
    //for(i=1;i<=n;++i) printf("%d \n", v[i]);
    for(i=1;i<=q;++i)
    {
        mx=999999;
        scanf("%d", &x);
        scanf("%d", &y);
        minim(1,1,n);
        printf("%d \n", mx);
    }
    return 0;
}