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Solution: Maximum Number of Visible Points

Explore the method to calculate the maximum number of visible points from a fixed location on a 2D plane given a viewing angle. Understand how to convert points to angles, sort and duplicate these angles to handle circular visibility, and use the two-pointer approach to find the largest subset visible within the field of view. This lesson helps you implement an efficient algorithm involving geometry and array manipulation to solve visibility problems commonly encountered in coding interviews.

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}] ...