Language: C++

/* package codechef; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Codechef
{
public static int findXORofRange(int  m,int n) {
    int[] patternTracker;

    if(m % 2 == 0)
        patternTracker = new int[] {n, 1, n^1, 0};
    else
        patternTracker = new int[] {m, m^n, m-1, (m-1)^n};

    return patternTracker[(n-m) % 4];
}


	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		Scanner sc=new Scanner(System.in);
		int a=sc.nextInt();
		int b=sc.nextInt();
		int c=findXORofRange(a,b);
		System.out.println(c);
	}
}


Compiler output:
a.cc:3:1: error: 'import' does not name a type
    3 | import java.util.*;
      | ^~~~~~
a.cc:3:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:1: error: 'import' does not name a type
    4 | import java.lang.*;
      | ^~~~~~
a.cc:4:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:5:1: error: 'import' does not name a type
    5 | import java.io.*;
      | ^~~~~~
a.cc:5:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:10:7: error: expected ':' before 'static'
   10 | public static int findXORofRange(int  m,int n) {
      |       ^~~~~~~
      |       :
a.cc:22:15: error: expected ':' before 'static'
   22 |         public static void main (String[] args) throws java.lang.Exception
      |               ^~~~~~~
      |               :
a.cc:22:34: error: 'String' has not been declared
   22 |         public static void main (String[] args) throws java.lang.Exception
      |                                  ^~~~~~
a.cc:22:43: error: expected ',' or '...' before 'args'
   22 |         public static void main (String[] args) throws java.lang.Exception
      |                                           ^~~~
a.cc:22:47: error: expected ';' at end of member declaration
   22 |         public static void main (String[] args) throws java.lang.Exception
      |                                               ^
      |                                                ;
a.cc:22:49: error: 'throws' does not name a type
   22 |         public static void main (String[] args) throws java.lang.Exception
      |                                                 ^~~~~~
a.cc:31:2: error: expected ';' after class definition
   31 | }
      |  ^
      |  ;
a.cc: In static member function 'static int Codechef::findXORofRange(int, int)':
a.cc:11:8: error: structured binding declaration cannot have type 'int'
   11 |     int[] patternTracker;
      |        ^~
a.cc:11:8: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
a.cc:11:8: error: empty structured binding declaration
a.cc:11:11: error: expected initializer before 'patternTracker'
   11 |     int[] patternTracker;
      |           ^~~~~~~~~~~~~~
a.cc:14:9: error: 'patternTracker' was not declared in this scope
   14 |         patternTracker = new int[] {n, 1, n^1, 0};
      |         ^~~~~~~~~~~~~~
a.cc:16:9: error: 'patternTracker' was not declared in this scope
   16 |         patternTracker = new int[] {m, m^n, m-1, (m-1)^n};
      |         ^~~~~~~~~~~~~~
a.cc:18:12: error: 'patternTracker' was not declared in this scope
   18 |     return patternTracker[(n-m) % 4];
      |            ^~~~~~~~~~~~~~