Shortest distance between two cells in a matrix or grid

Shortest distance between two cells in a matrix or grid is a DSA topic. In plain words you use it for a short Shortest distance between two cells in a matrix or grid example in a short dry-run on paper. Don’t start with a slogan — start with that picture.

Smallest example: the smallest Shortest distance between two cells in a matrix or grid example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Shortest distance between two cells in a matrix or grid.

From the example next to this theory: Shortest distance between two cells in a matrix or grid — arrays give O(1) index access; matrices are arrays of arrays.

Trap: only saying “Shortest distance between two cells in a matrix or grid” with no example. Fix that before you talk about advanced DSA.

Viva: what is Shortest distance between two cells in a matrix or grid? Then show the smallest Shortest distance between two cells in a matrix or grid example you can type. Then name the trap.

Exam tip

What is Shortest distance between two cells in a matrix or grid? Show this: the smallest Shortest distance between two cells in a matrix or grid example you can type. Trap: only saying “Shortest distance between two cells in a matrix or grid” with no example.

Example

arr = [10, 20, 30, 40]
print(arr[2], arr[-1])
matrix = [[1, 2], [3, 4]]
print(matrix[1][0])  # 3

Shortest distance between two cells in a matrix or grid — arrays give O(1) index access; matrices are arrays of arrays.

Short notes

DefShortest distance between two cells in a matrix or grid — a short Shortest distance between two cells in a matrix or grid example in a short dry-run on paper.
Rulethe smallest Shortest distance between two cells in a matrix or grid example you can type
Traponly saying “Shortest distance between two cells in a matrix or grid” with no example
Usea short dry-run on paper

Shortest distance between two cells in a matrix or grid

From the example next to this theory: Shortest distance between two cells in a matrix or grid — arrays give O(1) index access; matrices are arrays of arrays.

Trap: only saying “Shortest distance between two cells in a matrix or grid” with no example. Fix that before you talk about advanced DSA.

Viva: what is Shortest distance between two cells in a matrix or grid? Then show the smallest Shortest distance between two cells in a matrix or grid example you can type. Then name the trap.

Exam tip

Example

arr = [10, 20, 30, 40]
print(arr[2], arr[-1])
matrix = [[1, 2], [3, 4]]
print(matrix[1][0])  # 3

Shortest distance between two cells in a matrix or grid — arrays give O(1) index access; matrices are arrays of arrays.

Short notes

DefShortest distance between two cells in a matrix or grid — a short Shortest distance between two cells in a matrix or grid example in a short dry-run on paper.
Rulethe smallest Shortest distance between two cells in a matrix or grid example you can type
Traponly saying “Shortest distance between two cells in a matrix or grid” with no example
Usea short dry-run on paper

Shortest distance between two cells in a matrix or grid

Example

Short notes

Questions

Shortest distance between two cells in a matrix or grid

Example

Short notes

Questions