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RE: [Question] Mathematics × Programming Competition #4 [問題] 數學 × 程式編寫比賽 (第四回)
I guess, it is end of the contest? Here are my detailed solutions to this puzzle. Thanks for the interesting question: https://steemit.com/cn/@justyy/software-engineer-interview-question-how-many-ways-from-a-to-c-via-b-a-b-c
yup it's the end, I am waiting the approval of the @steemstem team :) as they will sponsor some of the prizes