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#include <bits/stdc++.h>
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int n,m,dp[17][1<<17],lg[1<<17];
int main()
{ f>>n>>m;
for(int i=1; i<=n; i++)
f>>dp[0][i];
for(int i=2; i<=n; i++)
lg[i]=lg[i/2]+1;
for(int i=1; i<=lg[n]; i++)
for(int j=1; j<=n-(1<<(i-1)); j++)
dp[i][j]=min(dp[i-1][j],dp[i-1][j+(1<<(i-1))]);
for(int x,y; f>>x>>y;)
{ int z=lg[y-x];
g<<min(dp[z][x],dp[z][y-(1<<z)+1])<<'\n';
}
g.close(); return 0;
}