5.4 2D arrays — Module 5. Arrays & Lists

#	Task	Type
1	5.4 2D arrays — creating and indexing	Notebook with theory
2	5.4 2D arrays — element at [r][c]	Extended question with AI verification
3	5.4 2D arrays — dimensions and nested traversal	Notebook with theory
4	5.4 2D arrays — print grid	Extended question with AI verification
5	5.4 2D arrays — summing a 2D array	Notebook with theory
6	5.4 2D arrays — sum all 2D	Extended question with AI verification
7	5.4 2D arrays — column-major and diagonals	Notebook with theory
8	5.4 2D arrays — diagonal total	Extended question with AI verification
9	5.4 2D arrays — capstone: grid total	Programming task

Module: 5.4 2D arrays