#include <bits/stdc++.h>
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int n,m,l[100005];
int mat[40][100005];
int main()
{

    f>>n>>m;
    for(int i=1;i<=n;++i)
        f>>mat[0][i];
    l[0]=l[1]=0;
    for(int i=2;i<=n;++i)
        l[i]=l[i>>1]+1;
    for(int i=1;i<=l[n];++i)
        for(int j=1;j+(1<<(i-1))<=n;++j)
            mat[i][j]=min(mat[i-1][j],mat[i-1][j+(1<<(i-1))]);
    while(m--)
    {
        int x,y,l2;
        f>>x>>y;
        l2=l[y-x+1];
        g<<min(mat[l2][x],mat[l2][y-(1<<l2)+1])<<'\n';
    }
    g.close();
    f.close();
    return 0;
}