Given a list of non-overlapping axis-aligned rectangles rects, write a function pick which randomly and uniformily picks an integer point in the space covered by the rectangles.
Note:
An integer point is a point that has integer coordinates. A point on the perimeter of a rectangle is included in the space covered by the rectangles. ith rectangle = rects[i] = [x1,y1,x2,y2], where [x1, y1] are the integer coordinates of the bottom-left corner, and [x2, y2] are the integer coordinates of the top-right corner. length and width of each rectangle does not exceed 2000. 1 <= rects.length <= 100 pick return a point as an array of integer coordinates [p_x, p_y] pick is called at most 10000 times. Example 1:
The input is two lists: the subroutines called and their arguments. Solution’s constructor has one argument, the array of rectangles rects. pick has no arguments. Arguments are always wrapped with a list, even if there aren’t any.