What is the worst-case time complexity of insertion in a singly linked list?

Practice Questions

Q1
What is the worst-case time complexity of insertion in a singly linked list?
  1. O(1)
  2. O(n)
  3. O(log n)
  4. O(n^2)

Questions & Step-by-Step Solutions

What is the worst-case time complexity of insertion in a singly linked list?
  • Step 1: Understand what a singly linked list is. It is a data structure where each element (node) points to the next one.
  • Step 2: Know that when we want to insert a new element, we need to find the right place to put it.
  • Step 3: In the worst case, we might have to look at every node in the list to find where to insert the new element.
  • Step 4: If there are 'n' nodes in the list, this means we could potentially check all 'n' nodes.
  • Step 5: Therefore, the time it takes to insert in the worst case is proportional to the number of nodes, which is expressed as O(n).
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