Remove Linked List Elements
A easy-tier problem at 52% community acceptance, tagged with Linked List, Recursion. Reported in interviews at Arista Networks and 1 others.
Remove Linked List Elements is one of those problems that looks trivial until you hit it on a live assessment and freeze. Google and Arista Networks both ask it. The acceptance rate sits at 52%, which means half the candidates who see it get it wrong, usually because they overthink the edge cases or mess up pointer management. It's easy in name only. The trap is the head node: removing it requires different logic than removing middle nodes, and that's where most people crater. If you haven't drilled the pattern and blank during your OA, StealthCoder surfaces the clean solution in seconds, invisible to the proctor.
Companies that ask "Remove Linked List Elements"
Remove Linked List Elements is the kind of problem that decides whether you pass. StealthCoder reads the problem on screen and surfaces a working solution in under 2 seconds. Invisible to screen share. The proctor sees nothing. Made for the engineer who has done the work but might still blank with a webcam pointed at him.
Get StealthCoderThe problem asks you to remove all nodes with a specific value from a linked list. The trick is handling the head node separately because you can't just update a pointer to skip it the way you do with middle or tail nodes. Most candidates try a single-pass solution and get tangled in whether the head is being removed. The right move: use a dummy node pointing to the head. This unifies the logic for all nodes, even the real head. Then it's a straightforward single-pass traversal where you skip nodes by updating next pointers. Recursion is another valid path and appears in the topics, but it's typically slower and messier in a live setting. The iterative dummy-node approach is what you want to know cold. If you haven't seen this pattern before and hit it on your OA, StealthCoder handles the pointer logic and edge cases while you stay calm.
Pattern tags
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Make sure you actually pass it.
Remove Linked List Elements recycles across companies for a reason. It's easy-tier, and most candidates blank under the timer. StealthCoder is the hedge: an AI overlay invisible during screen share. It reads the problem and surfaces a working solution in under 2 seconds. Made for the engineer who has done the work but might still blank with a webcam pointed at him. Works on HackerRank, CodeSignal, CoderPad, and Karat.
Remove Linked List Elements interview FAQ
How hard is this really if it's marked EASY?+
The 52% acceptance rate tells you most people get this wrong under time pressure. The difficulty label is misleading. It's easy in concept but easy to mess up in execution. Head-node removal and pointer management trap candidates. Drill it before your OA.
Is this still asked at Google and Arista Networks?+
Yes, both companies report asking it. Google especially uses it as a filtering problem early in the interview loop. It's not fancy, but it's a reliable test of whether you understand linked-list pointer manipulation and edge-case handling.
Should I use recursion or iteration?+
Iteration with a dummy node is the safer bet in a live OA. It's clearer, faster to code, and easier to debug if something breaks. Recursion works but adds overhead and is harder to get right under pressure. Save recursion for the follow-up conversation.
What's the biggest gotcha?+
The head node. If the value to remove is at the head, you can't just skip it by updating a next pointer because there's no previous node. A dummy node fixes this instantly. Without it, you'll need special-case logic and you'll miss edge cases.
How does this relate to Linked List and Recursion topics?+
It tests your core linked-list skills: traversal, pointer updates, and edge cases. Recursion is listed as a valid approach but isn't necessary for a correct solution. The Linked List topic is the real focus. Master iteration first.
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