摘要：
You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you c... 阅读全文
posted @ 2015-10-02 23:00
chaha
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摘要：
You are a product manager and currently leading a team to develop a new product. Unfortunately, the latest version of your product fails the quality c... 阅读全文
posted @ 2015-10-02 18:01
chaha
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