#include <cstdio>
#include <cstring>
#include <cmath>
#define min(a,b) a<b?a:b

int N,M,RMQ[100000][16]; // log(2,100000) ~= 16

int main()
{
 freopen("rmq.in","r",stdin);
 freopen("rmq.out","w",stdout);
 scanf("%d %d",&N,&M);
 memset(RMQ,127,sizeof RMQ);
 for(int i=0;i<N;++i)
        scanf("%d",&RMQ[i][0]);
 for(int k=1;(1<<k)<=N;++k)
        for(int i=0;i<N;++i)
          RMQ[i][k] = min(RMQ[i][k-1],RMQ[i+(1<<(k-1))][k-1]);
 for(int p1,p2,i=0;i<M;++i)
 {
        scanf("%d %d",&p1,&p2);
        p1--; p2--;
        int log2L = int(log(p2-p1+1));
        printf("%d\n",min(RMQ[p1][log2L],RMQ[p2+1-(1<<log2L)][log2L]));
 }
 return 0;
}