#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
ifstream fin("rmq.in");
ofstream fout("rmq.out");
const int nMax=2e5+5,MOD=1e9+7,lg=20;

int t,n,m,x,y,z,a,b,c,d,k,ans,rez,poz,cnt,len,l,r,e,f;
ll v[nMax],Xor[nMax],sum[nMax],sqSum[nMax],xor1[nMax],sum1[nMax],sqSum1[nMax],rmq[lg][nMax],E[nMax];


int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0),cout.tie(0);
    fin>>n>>t;
    for(int i=1; i<=n; ++i)
        fin>>rmq[0][i];
    for(int bit=1; bit<lg; ++bit)
        for(int i=1; i<=n; ++i)
        {
            x=i;
            y=min(n,x+(1<<(bit-1)));
            rmq[bit][i]=min(rmq[bit-1][x],rmq[bit-1][y]);
        }
    E[1]=0;
    for(int i=2; i<=n; ++i)
        E[i]=E[i/2]+1;
    while(t--)
    {
        fin>>l>>r;
        len=r-l+1;
        e=E[len];
        x=min(rmq[e][l],rmq[e][r-(1<<e)+1]);
        fout<<x<<'\n';
    }

}