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Problem 873 | Project Euler | #875

Open sx349 opened 8 months ago

sx349 commented 8 months ago

https://pe-cn.github.io/873/

Problem 873 Words with GapsLet $W(p,q,r)$ be the number of words that can be formed using the letter A $p$ times, the letter B $q$ times and the letter C $r$ times with the condition that every A is