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2023年6月19日
Climbing Stairs
摘要： You are climbing a staircase. It takes n steps to reach the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb 阅读全文
posted @ 2023-06-19 11:59 Artwalker 阅读(16) 评论(0) 推荐(0)
Sqrt(x)
摘要： Given a non-negative integer x, return the square root of x rounded down to the nearest integer. The returned integer should be non-negative as well. 阅读全文
posted @ 2023-06-19 10:16 Artwalker 阅读(25) 评论(0) 推荐(0)
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