#include <bits/stdc++.h>
using namespace std;
int m,n,lg[100002],rmq[20][100002],x,y,lgg;
int main(){
    ifstream f("rmq.in");
    ofstream g("rmq.out");
    lg[1]=0;
    f>>n>>m;
    for(int i=2;i<=n;++i)
        lg[i]=1+lg[i/2];
    for(int i=1;i<=n;++i)
        f>>rmq[0][i];
    for(int i=1;i<=lg[n];++i)
        for(int j=1;j+(1<<i)<=n+1;++j)
            rmq[i][j]= min(rmq[i-1][j],rmq[i-1][j+(1<<(i-1))]);
    for(int i=1;i<=m;++i){
        f>>x>>y;
        lgg=lg[y-x+1];
        g<<min(rmq[lgg][x],rmq[lgg][y-(1<<lgg)+1])<<'\n';
    }
    return 0;
}