Clarify the significance of graphs in reasoning

Enhance K_{3,3} section in graphs.md

Modernize Python sorting algorithm implementations (#28)

Fix, modernize and improve all Python and C++ dynamic programming and backtracking examples (#27)

Fix, modernize and improve all Python graph examples (#26)

Modernize and improve C++ graph, collections, and brain teaser examples (#25)

Add cycle example in graphs documentation

Fix index table formatting in searching.md

Refine searching section for clarity

Refactor hash function output formatting

Enhance searching.md with algorithm details and examples

Refactor searching.md to streamline content

Fix formatting in searching.md

Fix table formatting in searching.md

Update sorting.md with stability sorting guidelines