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Remove Target Values from a Linked List
Problem Description
Given the head of a singly linked list and an integer target, your task is to remove all nodes whose value equals target.
Constraints
- The
targetvalue may appear zero, one, or multiple times within the list. - The modification must be performed in place; you are not allowed to create a new linked list.
- Return the head of the modified list.
AI interview prep
Core dilemma
Robustly handling pointer manipulation for in-place node removal, especially when the head node itself needs to be removed, while maintaining O(1) space complexity.
Mid-level signals3
Senior signals3
Red flags3
1 tradeoff and 3 stress tests locked
Interview prep
Unlock the interviewer X-Ray rubric, tradeoff matrix, stress tests, clarifying questions, and key concepts.
Remove Target Values from a Linked List
Problem Description
Given the head of a singly linked list and an integer target, your task is to remove all nodes whose value equals target.
Constraints
- The
targetvalue may appear zero, one, or multiple times within the list. - The modification must be performed in place; you are not allowed to create a new linked list.
- Return the head of the modified list.