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Arrays: Time Complexity

What is the time complexity of the main array operations?

Answer
  • Access by index: \(O(1)\)

  • Search: \(O(n)\)

  • Insert: \(O(n)\). Inserting an element requires shifting the elements to the right to make room.

  • Delete: \(O(n)\). Deleting an element requires shifting the elements to the left to close the gap.

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