Compitative programming problem with visualizer.

Each task have four files:

• solution_n.py: This file contains the actual code to solve the task.
• test_n.py: It includes unit test cases that help ensure the correctness of the result.
• presentation_n.ipynb: This file contains the code responsible for displaying states.
• presentation_n.html: It exports the visualized result from the Jupyter notebook.

Example 1 Find the bourdery of list number

Example 2 The famous water trapping problem https://leetcode.com/problems/trapping-rain-water/

Example 3 longest common substring