https://leetcode.com/problems/human-traffic-of-stadium/description/ Human Traffic of Stadium - LeetCode Human Traffic of Stadium - Table: Stadium +---------------+---------+ | Column Name | Type | +---------------+---------+ | id | int | | visit_date | date | | people | int | +---------------+---------+ visit_date is the primary key for this table. Each row leetcode.com 사실 솔루션 참고함 ^^.. 전에 빅데이터팀에..