#include <bits/stdc++.h>

std::ifstream in("rmq.in");
std::ofstream out("rmq.out");

using namespace std;

const int MAX = 100005;
int RMQMatrix[25][MAX];
int Lg[MAX];
int N,Questions;
int M;
inline void scanDATA()
{
    in >> N >> M;
    for ( int i = 1; i <= N ; ++i)
        in >> RMQMatrix[0][i];
    for ( int i = 2; i <= N ; ++i)
        Lg[i] = Lg[i/2]+1;
}

void RMQ()
{
    for ( int i = 1 ; i <= Lg[N] ; ++i)
        for ( int j = 1; j <= N - ( 1 << (i-1)) ; ++j)
        RMQMatrix[i][j] = min(RMQMatrix[i-1][j] , RMQMatrix[i-1][j+(1<<(i-1))]);
}

void LCA(int x , int y)
{
    if(x>y) swap(x,y);
    int k = Lg[y-x+1];

    out<< min(RMQMatrix[k][x] , RMQMatrix[k][y-(1<<k)+1]) <<"\n";
}

int main()
{
    scanDATA();
    RMQ();
    for ( int i = 1; i <= M ; ++i)
    {
        int x,y;
        in >> x >> y;
        LCA(x,y);
    }
}