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[Leetcode]Students & Examinations, Percentage of Users Attended a contest, Product Sales Analysis 3
1. Students and Examinations - https://leetcode.com/problems/students-and-examinations/ Students and Examinations - LeetCode Can you solve this real interview question? Students and Examinations - Table: Students +---------------+---------+ | Column Name | Type | +---------------+---------+ | student_id | int | | student_name | varchar | +---------------+---------+ student_id is leetcode.com Q. ..
[LeetCode]1661.Average Time of~, 1251.Average Selling Price , 1141. User Activity for the Past 30 Days I
Q. 1661 Average Time of Process per Machine Average Time of Process per Machine - LeetCode Can you solve this real interview question? Average Time of Process per Machine - Table: Activity +----------------+---------+ | Column Name | Type | +----------------+---------+ | machine_id | int | | process_id | int | | activity_type | enum | | timestam leetcode.com Table: Views +---------------+-------..