#include <cstdio>
#include <iostream>
using namespace std;

//ifstream fin("rmq.in");
//ofstream fout("rmq.out");

FILE * fin=fopen("rmq.in", "r");
FILE * fout=fopen("rmq.out", "w");

int n,m,i,j,p,v[20][100001];
char buff[100000];
int pp;

int numar(){
    int val=0;

    while(!(buff[pp]>='0' && buff[pp]<='9')){
        pp++;
        if(pp==100000){
            fread(buff,1,100000,fin);
            pp=0;
        }
    }

    while(buff[pp]>='0' && buff[pp]<='9'){
        val=val*10+buff[pp]-'0';

        pp++;
        if(pp==100000){
            fread(buff,1,100000,fin);
            pp=0;
        }
    }

    return val;
}

int main(){

    n=numar();
    m=numar();

    ///cout<<n<<"\n";
    for(i=1;i<=n;i++){
        v[0][i]=numar();
    }

    for(i=1;(1<<i)<=n;i++){
        for(j=1;j<=n;j++){
            v[i][j]=v[i-1][j];
            if(j+(1<<(i-1))<=n)
                v[i][j]=min(v[i][j],v[i-1][j+(1<<(i-1))]);
        }
    }

    for(;m;m--){
        i=numar();
        j=numar();

        p=0;
        while((1<<p)<=j-i+1)
            p++;
        p--;

        fprintf(fout,"%d\n",min(v[p][i],v[p][j-(1<<p)+1]));
        ///fprintf(fout,"\n");
    }

    return 0;
}