Exercise 22.3 Let \(\pi_1: \mathbb{R} \times \mathbb{R} \rightarrow \mathbb{R}\) be projection on the first coordinate. Let \(A\) be the subspace of \ ...
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2019-02-09 19:13:55
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Given n non-negative integers a1, a2, ..., an , where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endp ...
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2019-01-25 16:01:28
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算法描述： Given n non-negative integers a1, a2, ..., an , where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the tw ...
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2019-01-25 13:40:24
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Given n non-negative integers a1, a2, ..., an , where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endp ...
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2019-01-22 21:46:34
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On a 2D plane, we place stones at some integer coordinate points. Each coordinate point may have at most one stone. Now, a move consists of removing a ...
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2019-01-21 01:13:10
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Given the coordinates of four points in 2D space, return whether the four points could construct a square. The coordinate (x,y) of a point is represen ...
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2019-01-16 17:23:28
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hasattr() 函数用于判断对象是否包含对应的属性。（has attribute） 参数 object -- 对象。 name -- 字符串，属性名。 class Coordinate: x = 10 y = -5 z = 0 point1 = Coordinate() print(hasatt ...
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编程语言 时间：
2019-01-10 20:51:08
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234
An image is represented by a 2-D array of integers, each integer representing the pixel value of the image (from 0 to 65535). Given a coordinate (sr, ...
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2019-01-02 10:45:09
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Given n non-negative integers a1, a2, ..., an , where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endp ...
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2018-12-31 14:43:58
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179
Theorem 18.4 in James Munkres “Topology” states that if a function \(f : A \rightarrow X \times Y\) is continuous, its coordinate functions \(f_1 : A ...
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2018-12-18 22:38:34
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