Q:

Write a Java program to segregate all 0s on left side and all 1s on right side of a given array of 0s and 1s

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YasminRadwan26
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2022-05-11
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Write a Java program to segregate all 0s on left side and all 1s on right side of a given array of 0s and 1s

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YasminRadwan26
2022-05-11
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In this demo I have used NetBeans IDE 8.2 for debugging purpose. But you can use any java programming language compiler as per your availability..

import java.util.*;
import java.lang.*;
public class Javaexcercise
{
   public static void main (String[] args) 
    {  
        int nums[] = {1,1,0,1,0,1,1,1,0,0,0};
        int  nums_size = nums.length;
        int left = 0, right = nums_size - 1;
 
        System.out.println("Original Array : "+Arrays.toString(nums));  
 
        while (left < right) 
        {
 
            while (nums[left] == 0 && left < right)
               left++; 
 
            while (nums[right] == 1 && left < right)
                right--;
 
 
            if (left < right) 
            {
                nums[left] = 0;
                nums[right] = 1;
                left++;
                right--;
            }
        }
 
       System.out.println("Array after segregation is : "+Arrays.toString(nums));  
    }
}

Result:

Original Array : [1, 1, 0, 1,0, 1, 1, 1, 0, 0, 0]

Array after segregation is : [0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1]

 

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