Can't be more simple than this one
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n Describe your approach to solving the problem. \ngrup by and count\n\n# 
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n<!-- Describe your approach to solving the problem. -->\ngrup by and count\n\n# Code\n```\n# Write your MySQL query statement below\n\nselect actor_id,director_id from (select actor_id , director_id , count(director_id) as tt from ActorDirector group by actor_id,director_id) t where t.tt>=3;\n```
['MySQL']