#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define ar array
#define vt vector
#define pq priority_queue
#define pu push
#define pub push_back
#define em emplace
#define emb emplace_back
#define all(x) x.begin(), x.end()
#define allr(x) x.rbegin(), x.rend()
#define allp(x, l, r) x.begin() + l, x.begin() + r
#define len(x) (int)x.size()
using namespace std;
using namespace __gnu_pbds;
using ll = long long;
using ld = long double;
using ull = unsigned long long;
template <class T, size_t N>
void re(array <T, N>& x);
template <class T>
void re(vt <T>& x);
template <class T>
void re(T& x) {
cin >> x;
}
template <class T, class... M>
void re(T& x, M&... args) {
re(x); re(args...);
}
template <class T>
void re(vt <T>& x) {
for(auto& it : x)
re(it);
}
template <class T, size_t N>
void re(array <T, N>& x) {
for(auto& it : x)
re(it);
}
template <class T, size_t N>
void wr(array <T, N> x);
template <class T>
void wr(vt <T> x);
template <class T>
void wr(T x) {
cout << x;
}
template <class T, class ...M> void wr(T x, M... args) {
wr(x), wr(args...);
}
template <class T>
void wr(vt <T> x) {
for(auto it : x)
wr(it, ' ');
}
template <class T, size_t N>
void wr(array <T, N> x) {
for(auto it : x)
wr(it, ' ');
}
inline void Open(const string Name) {
#ifndef ONLINE_JUDGE
(void)!freopen((Name + ".in").c_str(), "r", stdin);
(void)!freopen((Name + ".out").c_str(), "w", stdout);
#endif
}
void solve() {
const int INF = 1e9;
const int K = 17;
int n, q; re(n, q);
vt <int> v(n); re(v);
vt <vt <int>> st(K, vt <int>(n));
/* To precompute the answer and answer the queries in constant time we will use a sparse table:
We divide an interval n into different intervals whose lengths are powers of 2. To better understand let's take the following example:
For the array [1, 5, 6, 4, 3] we will store the values in the spare table as such:
i = 0 -> [1, 5, 6, 4, 3]
i = 1 -> [1, 5, 6, 4, 3] -> [min{1, 5}, min{5, 6}, min{6, 4}, min{4, 3}] -> [1, 5, 4, 3]
i = 2 -> [1, 5, 4, 3] -> [min{1, 4}, min{5, 3}] -> [1, 3]
*/
st[0] = v;
for (int i = 1; i < K; ++i)
for (int j = 0; j + (1 << (i - 1)) < n; ++j) {
st[i][j] = min(st[i - 1][j], st[i - 1][j + (1 << (i - 1))]);
}
for (int i = 0; i < q; ++i) {
int l, r; re(l, r);
int ans = INF;
--l, --r;
/* iterative better for sum queries
for (int j = K - 1; j >= 0; --j)
if (l + (1 << j) - 1 <= r) {
ans = min(ans, st[j][l]);
l += (1 << j);
}
*/
/* optimized better for overlapping functions such as gcd, min, max, ... */
int k = 31 - __builtin_clz(r - l + 1);
ans = min(st[k][l], st[k][r - (1 << k) + 1]);
wr(ans, '\n');
}
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
Open("rmq");
int t = 1;
for(;t;t--) {
solve();
}
return 0;
}