Math Problem Statement
Có bao nhiêu xâu gồm n ký tự (n ≥ 1) với các ký tự 0,1,2 sao cho không có hai ký tự 0 nào đứng cạnh nhau
Solution
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Math Problem Analysis
Mathematical Concepts
Combinatorics
Recurrence Relations
Formulas
Recursive formula for counting strings without adjacent '0's
Theorems
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Suitable Grade Level
Advanced High School
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