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Description
Combinatorial Prob in Math'l(v4)This book focuses on combinatorial problems in mathematical competitions. It provides basic knowledge on how to solve combinatorial problems in mathematical competitions, and also introduces important solutions to combinatorial problems and some typical problems with often used solutions. Some enlightening and novel examples and exercises are well chosen in this book. With this book, readers can explore, analyze and summarize the ideas and methods of
This book focuses on combinatorial problems in mathematical competitions. It provides basic knowledge on how to solve combinatorial problems in mathematical competitions, and also introduces important solutions to combinatorial problems and some typical problems with often-used solutions. Some enlightening and novel examples and exercises are well chosen in this book.With this book, readers can explore, analyze and summarize the ideas and methods of solving combinatorial problems. Their mathematical culture and ability will be improved remarkably after reading this book.Shipping Notes
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★★★★★ 2
Not great
I bought these pillows based on customer reviews. I got them and let them poof out after opening... But they are awful. They're soft but there's nothing to them. Very flat and not supportive. I'm literally buying different pillows tomorrow.
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Excellent
Extremely comfortable pillows. I would highly recommend
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Pillows
I love the comfort and quality of the pillows.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
So comfy
These pillows are great! So comfy, no neck or back pain. I highly recommend them!
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Best pillow ever
Color: White, Size: Queen Size Set of 2
These pillows are soft, comfortable, and feel like true hotel-quality bedding. They stay cool throughout the night, provide great medium support, and the cotton cover feels smooth and luxurious. Perfect for a restful sleep!
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Reviewed in the United States on May 21, 2026
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