Watch tutorials and explanations by expert teachers that walk through solving this problem.
NeetCode
Kevin Naughton Jr.
Frederik Müller
Nick White
Programming Live with Larry
Timothy H Chang
code Explainer
David Anuson
Nikash Kumar
Solve more problems to master this pattern
![LeetCode 182: Duplicate Emails [3 Solutions]](https://i.ytimg.com/vi/qK_PcMHUyY4/hq720.jpg?sqp=-oaymwEXCNAFEJQDSFryq4qpAwkIARUAAIhCGAE=&rs=AOn4CLBaA9pVxVbDhsF-Gp0Mtdm87ib5-g)
