Question

A singly linked list is maintained with both head and tail pointers. Which of the following operations cannot be performed in O(1) time?

A Insert a node at the front
B Insert a node at the end
C Delete the first node
D Delete the last node
E Check whether the list is empty
Practice Next

Hey! Ask a query

🎓
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
  • 200 Questions with Detailed Solutions
  • Section-wise Coverage (GA, English, Quant & Reasoning)