#include <fstream>
#define Nmax 100001
using namespace std;
ifstream fin("rmq.in");
ofstream fout("rmq.out");
int n,m,dp[21][Nmax],x;
int main()
{
    int i,j,a,b;
    fin>>n>>m;
    for (i=1; i<=n; i++)
        fin>>dp[0][i];
    while ((1<<x)<=n)
        x++;
    for (i=1; i<x; i++)
    {
        for (j=1; j<=n-(1<<i)+1; j++)
        {
            dp[i][j]=min(dp[i-1][j],dp[i-1][j+(1<<(i-1))]);
        }
    }
    for (i=1; i<=m; i++)
    {
        fin>>a>>b;
        int l=b-a+1;
        x=0;
        while ((1<<x)<=l)
            x++;
        x--;
        fout<<min(dp[x][a],dp[x][b-(1<<x)+1])<<"\n";
    }
    return 0;
}