📢 본 포스팅에 활용되는 기본 문제 및 자료 출처는 리트코드 Problems / https://leetcode.com/problemset/all/ 임을 밝힙니다. ■ 문제 https://leetcode.com/problems/classes-more-than-5-students/description/ Classes More Than 5 Students - LeetCode Can you solve this real interview question? Classes More Than 5 Students - Table: Courses +-------------+---------+ | Column Name | Type | +-------------+---------+ | student | varchar | | c..
