Watch tutorials and explanations by expert teachers that walk through solving this problem.
Everyday Data Science
![LeetCode 1355: Activity Participants [SQL]](https://i.ytimg.com/vi/dgBqVE9CtbI/hq720.jpg?sqp=-oaymwEXCNAFEJQDSFryq4qpAwkIARUAAIhCGAE=&rs=AOn4CLBV1t2VOAsjMs5dKgJS-PaTGR3mQg)
Frederik Müller
The Codebender
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Everyday Data Science
Tech Timeout
![LeetCode 1729: Find Followers Count [SQL]](https://i.ytimg.com/vi/QtXRe4Ybm0k/hq720.jpg?sqp=-oaymwEXCNAFEJQDSFryq4qpAwkIARUAAIhCGAE=&rs=AOn4CLB3eockP02NrQaewdOr-Sk4cm7AvA)
Frederik Müller
![626. Exchange Seats - LeetCode SQL Solution [MEDIUM]](https://i.ytimg.com/vi/yNpZBNEvIw8/hq720.jpg?sqp=-oaymwEXCNAFEJQDSFryq4qpAwkIARUAAIhCGAE=&rs=AOn4CLCDZ6057pxObNehmqoFl-LTY3gi5A)
Code with Carter
![MLV Prasad - LeetCode SQL [ MEDIUM ] | 0614 | " Second Degree Follower " |](https://i.ytimg.com/vi/pCBYKVsEYSI/hq720.jpg?sqp=-oaymwEXCNAFEJQDSFryq4qpAwkIARUAAIhCGAE=&rs=AOn4CLBPD6WqxLKI5KsQr_rUoIxkJQytmA)
Data Science University - MLV Prasad
