LeetCode problem (unidentified: “lc刘霸凌” + follow-up)

Incomplete prompt: only “lc刘霸凌 - followup k次加油加油” is provided, so the exact LeetCode problem and the follow-up requirement cannot be identified. Please share the LeetCode id/title or the full statement (input, output, constraints, examples), and clarify what the follow-up with k means.