Optimize deck reveal using deque reverse simulation (short & easy)

[hamzanazir27]

• Implemented a combined approach for the deck revealing problem.
• Sorted the deck to get the desired increasing reveal order.
• Used a deque for reverse simulation:
  • Start from the largest card and work backwards.
  • Move last element to front (simulating forward 'move top to bottom').
  • Insert current card at front.
• Converts deque to vector for final output.
• This merges the intuitive forward simulation concept with an optimized reverse simulation.
• Time Complexity: O(n log n), Space Complexity: O(n)
• Clean, efficient, and easy to explain in interviews.