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#include <bits/stdc++.h>
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int d[100001][20];
int n,m,x,y;
int main()
{
f>>n>>m;
for(int i=1;i<=n;i++)
f>>d[i][0];
for(int j=1;(1<<j)<=n;j++)
for(int i=1;i+(1<<j)-1<=n;i++)
d[i][j]=min(d[i][j-1],d[i+(1<<(j-1))][j-1]);
for(int i=1;i<=m;i++)
{
f>>x>>y;
int p=log2(y-x+1);
g<<min(d[x][p],d[y-(1<<p)+1][p])<<'\n';
}
return 0;
}