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import java.io.BufferedReader;
import java.io.InputStreamReader;
 
import java.util.*;
 
 
// Warning: Printing unwanted or ill-formatted data to output will cause the test cases to fail
 
class Inverse 
{
 
    public static void main(String args[] ) throws Exception 
 
    {
    	Scanner sc = new Scanner(System.in);
 
    	System.out.println("Please enter the number of arrays");
    	int set = sc.nextInt();
    	for(int i =0;i<set;i++)
    	{
    	input(i);
    int x = 0;;
    if(x==1)
    {
    System.out.println("inverse");	
    }
    else
    {
    System.out.println("not inverse");	
    }
    	}
    }
 
    public static void input(int set)
    {
    Scanner sc = new Scanner(System.in);
    System.out.println("Please enter the length of the array");
    int len = sc.nextInt();
    int[] arr = new int[len];
    System.out.println("Please enter the digits of the array");
    for(int i = 0; i< len;i++)
    {
    arr[i]	= sc.nextInt();
    inverse(arr);
    }
    }
 
    }
 
    public static int inverse(int[] arr)
    {
    	int t = 1;
    	boolean in = true;;
    	int l = arr.length;
            for (int i = 0; i<l;i++)
            {
            	if(arr[i]==t)
            	{
            	 in = true;
            	}
            	else
            	{
            		in = false;
            		break;
            	}
            }
            if(in)
            {
            return 1;	
            }
            else
            {
            	return -1;
            }
    }
}

Main.java:50: error: class, interface, or enum expected
    public static int inverse(int[] arr)
                  ^
Main.java:53: error: class, interface, or enum expected
    	boolean in = true;;
    	^
Main.java:54: error: class, interface, or enum expected
    	int l = arr.length;
    	^
Main.java:55: error: class, interface, or enum expected
            for (int i = 0; i<l;i++)
            ^
Main.java:55: error: class, interface, or enum expected
            for (int i = 0; i<l;i++)
                            ^
Main.java:55: error: class, interface, or enum expected
            for (int i = 0; i<l;i++)
                                ^
Main.java:60: error: class, interface, or enum expected
            	}
            	^
Main.java:64: error: class, interface, or enum expected
            		break;
            		^
Main.java:65: error: class, interface, or enum expected
            	}
            	^
Main.java:70: error: class, interface, or enum expected
            }
            ^
Main.java:74: error: class, interface, or enum expected
            }
            ^
11 errors

Standard output is empty