creative codes

 //finding An equilibrium index is a position in the array where the sum of elements to the left = sum of elements to the right.

// Online Java Compiler

// Use this editor to write, compile and run your Java code online


class Main {

    public static void main(String[] args) {

        int[] arr = {3, 4, 8, -9, 20, 6};

        int n = arr.length;

        int sum=0;

        boolean found=false;

         for(int i=0; i<n;i++)  sum+=arr[i];

         int left_sum=0;

         

         for(int i=0;i<n;i++){

             int right_sum=sum-left_sum-arr[i];

             if(left_sum==right_sum){

                 found=true;

                 System.out.print(sum+"-"+left_sum+"(left)"+"-"+arr[i]+"="+right_sum+"(right)");

                 System.out.println();

                 System.out.println(left_sum+"(left)"+"="+right_sum+"(right)");

                 System.out.println("Equilibrium at index " + i);

                 break;

             }

            left_sum+=arr[i];

         }

          if(!found) System.out.print("no");

    }

}

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