#include <bits/stdc++.h>
#define DIM 100001
using namespace std;

ifstream fin("rmq.in");

ofstream fout("rmq.out");

const int LOG = 20;

int n,a,b,q;

int E[DIM];

int rmq[DIM][LOG];

int Query(int st, int dr){

    int e = E[dr-st+1];

    int len = (1<<e);

    return min(rmq[st][e],rmq[dr-len+1][e]);

}

int main(){

    fin >> n >> q;

    for(int i=1;i<=n;i++){

        fin >> rmq[i][0];

    }

    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]);

    E[1] = 0;

    for(int i=2;i<=n;i++)

        E[i] = 1 + E[i/2];

    while(q--){

        fin >> a >> b;

        fout << Query(a,b) << '\n';

    }

    return 0;
}