[2356#_EASY] Number of Unique Subjects Taught by Each Teacher
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[2339#_EASY] All the Matches of the League
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[2329#_EASY] Product Sales Analysis V
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[1398#_MEDIUM] Customers Who Bought Products A and B but Not C
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[1393_MEDIUM] Capital Gain/Loss
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Capital Gain/Loss - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com Table: Stocks +---------------+---------+ | Column Name | Type | +---------------+---------+ | stock_name | varchar | | operation | enum | | operation_day | int | | price | int | +---------------+---------+ (stock_..
[2082#_EASY] The Number of Rich Customers
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[2072#_EASY] The Winner University
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[2026#_EASY] Low-Quality Problems
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