Nested Loop for 2D Array | Dataford Interview Questions

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Problem

Samsung Semiconductor represents a wafer inspection area as a rectangular two-dimensional grid. Given the number of rows and cols, return a matrix filled with consecutive integers starting at 0, ordered from left to right and then top to bottom.

Implement the function using a single Python return statement with a nested list comprehension. The inner comprehension must create each row, and the outer comprehension must create the matrix.

Formal Specification

Input: two integers, rows and cols.
Output: a list containing rows lists, where each inner list contains cols integers.
The value at position [r][c] must be r * cols + c.
The original inputs must not be modified.

Constraints

1 <= rows <= 100
1 <= cols <= 100
The output must contain exactly rows rows.
Every row must contain exactly cols values.
Rows must be independent list objects.

Function Signature

def build_inspection_grid(rows, cols):