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Which of the following is not true about comparison-based sorting algorithms.

  1. The minimum possible time complexity of a comparison-based sorting algorithm is O(N log N) for a random input array.
  2. Any comparison-based sorting algorithm can be made stable by using the position as a criteria when two elements are compared.
  3. Counting Sort is not a comparison-based sorting algorithm.
  4. Heap Sort is not a comparison-based sorting algorithm.


Choose the correct option.

  1. 1,2.
  2. 2,4.
  3. 4.
  4. 2.
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