description: You are given an array consisting of all integers from [l, r] inclusive. For example, if l = 2 and r = 5, the array would be [2, 3, 4, 5]. What's the minimum number of elements you can delete to make the [bitwise AND](https://en.wikipedia.org/wiki/Bitwise_operation#AND) of the array non-zero?
  
  A bitwise AND is a binary operation that takes two equal-length binary representations and performs the AND operation on each pair of the corresponding bits.
  
  Input
  
  The first line contains one integer t (1 ≤ t ≤ 10^4) — the number of test cases. Then t cases follow.
  
  The first line of each test case contains two integers l and r (1 ≤ l ≤ r ≤ 2 ⋅ 10^5) — the description of the array.
  
  Output
  
  For each test case, output a single integer — the answer to the problem.
  
  Example
  
  Input
  
  
  5
  1 2
  2 8
  4 5
  1 5
  100000 200000
  
  
  Output
  
  
  1
  3
  0
  2
  31072
  
  Note
  
  In the first test case, the array is [1, 2]. Currently, the bitwise AND is 0, as 1\ \& \ 2 = 0. However, after deleting 1 (or 2), the array becomes [2] (or [1]), and the bitwise AND becomes 2 (or 1). This can be proven to be the optimal, so the answer is 1.
  
  In the second test case, the array is [2, 3, 4, 5, 6, 7, 8]. Currently, the bitwise AND is 0. However, after deleting 4, 5, and 8, the array becomes [2, 3, 6, 7], and the bitwise AND becomes 2. This can be proven to be the optimal, so the answer is 3. Note that there may be other ways to delete 3 elements.
solution: import java.io.*;
  import java.util.*;
  import static java.lang.Math.*;
  
  public class B{
  	
  	public static void main(String[] args) throws IOException{
  		// br = new BufferedReader(new FileReader(".in"));
  		// out = new PrintWriter(new FileWriter(".out"));
  		// new Thread(null, new (), "fisa balls", 1<<28).start();
  		
  		int[][] p = new int[(int)2e5+1][20];
  		
  		for (int i = 1; i < p.length; i++) {
  			for (int j = 0; j < 20; j++) {
  				p[i][j] += ((1<<j)&i) > 0 ? 1:0;
  				p[i][j] += p[i-1][j];
  			}
  		}
  		
  		int t= readInt();
  		while(t-->0) {
  			int l = readInt(), r = readInt();
  			int dist = r-l+1;
  			int max = 0;
  			for (int i = 0; i < 20; i++) max = max(max, p[r][i] - p[l-1][i]);
  			
  			out.println(dist-max);
  		}
  		
  		out.close();
  	}
  	
  	static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
  	static PrintWriter out = new PrintWriter(new BufferedOutputStream(System.out));
  	static StringTokenizer st = new StringTokenizer("");
  	static String read() throws IOException{
  		while (!st.hasMoreElements()) st = new StringTokenizer(br.readLine());
  		return st.nextToken();
  	}
  	public static int readInt() throws IOException{return Integer.parseInt(read());}
  	public static long readLong() throws IOException{return Long.parseLong(read());}
  }