14_xoring-and-clearing.java

// User function Template for Java
class Solution {
  // Print the array
  public void printArr(int n, int arr[]) {
    for (int i = 0; i < n; i++) {
      System.out.print(arr[i] + " ");
    }
    System.out.println();
  }

  // Set element to zero
  public void setToZero(int n, int arr[]) {
    for (int i = 0; i < n; i++) {
      arr[i] = 0;
    }
  }

  // XOR elements with its i
  public void xor1ToN(int n, int arr[]) {
    for (int i = 0; i < n; i++) {
      arr[i] = arr[i] ^ i; // XOR Operation
    }
  }
}

//{ Driver Code Starts
import java.util.*;

public class GFG {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int t      = sc.nextInt();
    while (t-- > 0) {
      int n     = sc.nextInt();
      int arr[] = new int[n];
      for (int i = 0; i < n; i++) {
        arr[i] = sc.nextInt();
      }
      Solution obj = new Solution();
      obj.xor1ToN(n, arr);
      obj.printArr(n, arr);
      obj.setToZero(n, arr);
      obj.printArr(n, arr);
    }
    sc.close();
  }
}

// } Driver Code Ends