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#include <iostream>
#include <fstream>
#include <algorithm>
#include <queue>
#include <cstring>
#include <vector>
#include <climits>
#include <bitset>
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int n,m,nr,lg[100010],rmq[20][100010],x,y,l,diff;
vector<int>vec;
int main()
{
int i;
f>>n>>m;
lg[1]=0;
f>>rmq[0][1];
for(i=2;i<=n;i++){
f>>rmq[0][i];
lg[i]=lg[i/2]+1;
}
i=0;
for(i=1;i<=lg[n];i++)
{
for(int j=1;j<=n-(1<<i)+1;j++)
{
rmq[i][j]=min(rmq[i-1][j],rmq[i-1][j+(1<<(i-1))]);
}
}
for(i=1;i<=m;i++)
{
f>>x>>y;
diff=y-x+1;
g<<min(rmq[lg[l]][x],rmq[lg[l]][y-(1<<lg[l])+1])<<'\n';
}
}