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Solution: Maximum Number of Visible Points

Explore how to calculate the maximum number of visible points from a fixed position on the plane by analyzing angles formed with points. Learn to use sorting, angle duplication, and the two-pointer method to efficiently find the largest subset within a field of view. Understand handling coincident points and optimizing complexity.

Statement

You are provided with an array, points, an integer angle, and your location, where points[i] = [xi, yi] and location = [posx, posy], both representing integer coordinatesInteger coordinates refer to points on a plane where x and y values are whole numbers. on the X-Y plane.

You initially face directly east from your fixed location and cannot move. In other words, posx and posy cannot be changed. However, you can rotate to adjust your viewing direction. Your field of view, measured in degrees, is specified by the angle, representing the width of visibility. If you rotate counterclockwise by an angle dd, your visible field spans the inclusive range of angles [dangle2,d+angle2][d-\frac{angle}{2}, d+\frac{angle}{2}] ...