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How to Create a Symmetric Array in Python

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 Here's a Python program that says to write a Symmetric array transformation. A top interview question. Symmetric Array Transformation Problem: Write a Python function that transforms a given array into a symmetric array by mirroring it around its center. For example: Input: [1, 2, 3] Output: [1, 2, 3, 2, 1] Hints: Use slicing for the reverse part. Concatenate the original array with its mirrored part. Example def symmetric_array(arr):     """     Transforms the input array into a symmetric array by mirroring it around its center.     Parameters:     arr (list): The input array.     Returns:     list: The symmetric array.     """     # Mirror the array by concatenating the original with its reverse (excluding the last element to avoid duplication)     return arr + arr[-2::-1] # Example usage input_array = [1, 2, 3] symmetric_result = symmetric_array(input_array) print("Input Array:", input_arr...
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10 Top Blockchain Advantages for Finance Projects

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In the business world, the transactions are — orders, payments, account tracking and much more. Often, each participant has his or her own ledger — and, thus, a version of the truth that may differ from other participants.


blockchain

Top Blockchain Features 


You can avoid fraud... These multiple ledgers can be a recipe for error, fraud, and inefficiency. But because members on a blockchain share a common view of the truth, it’s now possible to see all details of a transaction end-to-end, reducing those vulnerabilities.


Ordinary ledger Vs Shared Ledger

Each participant has his own, separate ledger — increasing the possibility of human error or fraud. Reliance on intermediaries for validation creates inefficiencies. Can become a paper-laden process, resulting in frequent delays and potential losses for all stakeholders.


How to Avoid the Complexity

  • Single, shared, tamper-evident ledger — once recorded, transactions cannot be altered.
  • All parties must give consensus before a new transaction is added to the network.
  • Eliminates or reduces paper processes, speeding up transaction times and increasing efficiencies

Advantages of Blockchain 

  1. Reduce fraud
  2. Increase performance
  3. Avoid redundancy
  4. Security
  5. Scalability
  6. Less complex
  7. More reliable
  8. Paperless process
  9. Increase satisfaction to stakeholders
  10. Good transparency in transactions

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