#include <fstream>
#include <iostream>
#include <vector>
#include <bitset>
#include <string.h>
#include <algorithm>
#include <iomanip>
#include <math.h>
#include <time.h>
#include <stdlib.h>
#include <set>
#include <map>
#include <string>
#include <queue>
#include <deque>

using namespace std;

const char infile[] = "rmq.in";
const char outfile[] = "rmq.out";

ifstream fin(infile);
ofstream fout(outfile);

const int MAXN = 100005;
const int MAXLG = 20;
const int oo = 0x3f3f3f3f;

typedef vector<int> Graph[MAXN];
typedef vector<int> :: iterator It;

const inline int min(const int &a, const int &b) { if( a > b ) return b;   return a; }
const inline int max(const int &a, const int &b) { if( a < b ) return b;   return a; }
const inline void Get_min(int &a, const int b)    { if( a > b ) a = b; }
const inline void Get_max(int &a, const int b)    { if( a < b ) a = b; }

int RMQ[MAXLG][MAXN];
int lg[MAXN];

int main() {
    int N, M;
    fin >> N >> M;
    for(int i = 2 ; i <= N ; ++ i)
        lg[i] = lg[i >> 1] + 1;
    for(int i = 1 ; i <= N ; ++ i)
        fin >> RMQ[0][i];
    for(int i = 1 ; (1 << i) <= N ; ++ i)
        for(int j = 1 ; j + (1 << i) - 1 <= N ; ++ j)
            RMQ[i][j] = min(RMQ[i-1][j], RMQ[i - 1][j + (1 << (i - 1))]);
    for(int i = 1 ; i <= M ; ++ i) {
        int a, b;
        fin >> a >> b;
        int diff = (b - a + 1);
        int _log = lg[diff];
        fout << min(RMQ[_log][a], RMQ[_log][b - (1 << _log) + 1]) << '\n';
    }
    fin.close();
    fout.close();
    return 0;
}