[Link] https://www.acmicpc.net/problem/10868
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import java.util.*;
import java.io.*;
public class Main {
static BufferedReader br;
static StringBuilder sb = new StringBuilder();
static int[] seg;
static int n;
public static void main(String[] args) throws IOException {
br = new BufferedReader(new InputStreamReader(System.in));
sb = new StringBuilder();
int[] line = getArr();
n = line[0];
int m = line[1];
int[] arr = new int[n];
for(int i = 0; i < n; i++) arr[i] = toi(br.readLine());
seg = new int[n << 1];
init(arr);
while(m-- > 0) {
line = getArr();
int a = line[0] - 1, b = line[1];
sb.append(get(a, b)).append("\n");
}
print(sb);
}
public static void init(int[] arr) {
for(int i = 0; i < n; i++) seg[i + n] = arr[i];
for(int i = n - 1; i > 0; i--) seg[i] = Math.min(seg[i<<1], seg[i<<1|1]);
}
public static int get(int l, int r) {
int ans = Integer.MAX_VALUE;
for(l += n, r += n; l < r; l >>= 1, r >>= 1) {
if((l & 1) != 0) ans = Math.min(ans, seg[l++]);
if((r & 1) != 0) ans = Math.min(ans, seg[--r]);
}
return ans;
}
static int toi(String s) { return Integer.parseInt(s); }
static long tol(String s) { return Long.parseLong(s); }
static String[] getLine() throws IOException { return br.readLine().split(" "); }
static int[] getArr() throws IOException { return Arrays.stream(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray(); }
static <T> void print(T s) { System.out.print(s); }
static <T> void println(T s) { System.out.println(s); }
}