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About Ren Zhang
technology tutorials
Hey 👋 I just created a page here. You can now buy me a coffee!

Recent supporters

Shiang-ping Hao bought 3 Books.

Hi, Ren, Great Algo. videos - learning a lot from you. Thanks. Keep up the great work! -Daniel Hao

Vru bought 3 Books.

Zeyu Liu bought a Book.

Joanne Zhuo bought 2 Books.

Thanks for creating helpful leetcode tutorial videos!

Hi Joanne, Thank you!

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shailbenq bought a Book.

Thank you for explaining problem 410.

Thanks! appreciated!

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