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Solution: Minimum Time Visiting All Points

Understand how to determine the minimum time to visit all points in a specific order on a 2D plane by leveraging diagonal and straight movement calculations. Explore the use of coordinate differences and geometric principles to optimize travel time, and implement a linear time complexity solution.

Statement

You are given an array of nn points with integer coordinates on a 2D plane, points, where points[i] = [xi, yi]. Your task is to determine the minimum time in seconds required to visit all the points in the given order.

Movement rules:

  1. In one second, you can perform any one of the following:

    1. Move vertically by one unit.

    2. Move horizontally by one unit.

    3. Move diagonally (1 unit vertically and 1 unit horizontally in 1 second).

  2. You must visit the points in the exact sequence listed in the array.

  3. You may pass through points that appear later in the order, but they will not count as visits.

Constraints:

  • points.length =n= n

  • 1n 1021 \leq n \leq 10^2 ...