Explainer Problem Intro

Problem-statement intro card. eyebrow + title + prompt + input/output slots + optional note + accent + CTA. Theme-safe color-mix ring/tint.

Preview
ProblemReverse a singly linked list

Given the head of a singly linked list, return the reversed list.

input1 → 2 → 3 → 4
output4 → 3 → 2 → 1

Aim for O(1) extra space.

Props

eyebrow, title, prompt, input, output, note, accent, cta.