Which data structure has the fastest insertion procedure


Which data structure has the fastest insertion procedure?
A) Binary search tree
B) Ordered array
C) Heap
D) Unordered linked list
E) Ordered linked list

Ravi Garg edited question
    Vaibhav Srivastava (anonymous)

    Satyajit.. its a) .. it is binary search tree not binary tree

    Vaibhav Srivastava answered
      Satyajit Bhadange (anonymous)

      Complexity of A can be O(n) if skew tree
      Complexity of B will be O(n)
      Complexity of Heap O(log n)
      Complexity of D O(1)
      Complexity of E O(n)

      Satyajit Bhadange answered
        Anupriya Anu (anonymous)

        its a

        Anupriya Anu answered
          Satyajit Bhadange (anonymous)

          A cant be the answer…on an average insertion in binary tree takes log n time…and in worst case it will take n comparisons….Correct ans is D as in unordered list element can be inserted anywhere…even at the start of the list…so it will take constant time to insert…

          Satyajit Bhadange answered
            Satyajit Bhadange (anonymous)

            @vaibhav please check here the complexities of all operations on BST


            Satyajit Bhadange answered
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