#include<bits/stdc++.h>
using namespace std;
ifstream in("rmq.in");
ofstream out("rmq.out");
int n,m,d[100002][20],x,y;
int main()
{in>>n>>m;
for(int i=1;i<=n;i++)
    in>>d[i][0];
for(int j=1;(1<<j)<=n;j++)
    for(int i=1;i+(1<<j)-1<=n;i++)
        d[i][j]=min(d[i][j-1],d[i+(1<<(j-1))][j-1]);
for(int i=1;i<=m;i++)
    {in>>x>>y;
    int p=log2(y-x+1);
    out<<min(d[x][p],d[y-(1<<p)+1][p])<<'\n';
    }
return 0;
}