#include<bits/stdc++.h>

using namespace std;
ifstream fin("rmq.in");
ofstream fout("rmq.out");
int rmq[100002][22];

int n,k,x,y,z;
int main()
{
    fin>>n>>z;
    for(int i=1;i<=n;i++)
        {fin>>x;rmq[i][0]=x;}


    for(int j=1;(1<<j)<=n;j++)
    {
        for(int i=1;i+(1<<j)-1<=n;i++)
            rmq[i][j]=min(rmq[i][j-1] , rmq[i+(1<<(j-1))][j-1]);
    }

    for(int i=1;i<=z;i++)
    {
        fin>>x>>y;
        int k=log2(y-x+1);
        fout<<min(rmq[x][k] , rmq[y-(1<<k)+1][k])<<'\n';
    }
    return 0;
}