← Pointer Manipulation

Micro-Drill #7 — Flatten 2D to 1D

Pointer Manipulation Target: 10s

Flattening linearizes grid traversal and simplifies nested iterations.

flat = [x for row in grid for x in row]

Type it from memory. Go.

Practice Problems

• 341. Flatten Nested List Iterator
• 2022. Convert 1D Array Into 2D Array