Efficient Delivery Route Planner

Develop an algorithm that receives M points, each described by coordinates and a required arrival time, and calculates the order of visiting them that minimizes the total travel time and the number of delays.

Input:

• M — the number of points;
• For each point: coordinates (x, y) and the time by which it must be reached.

Output:

• A sequence of points that ensures the minimal total travel time and the minimal number of delays.

Constraints:

• 1 ≤ M ≤ 10^5;
• Coordinates and times are integers.

Note: This problem belongs to the class of route optimization problems (a variant of the Traveling Salesman Problem with time windows).