Check for possible paths in the 2D Matrix

Check for possible paths in the 2D Matrix is a DSA topic. In plain words you use it for a short Check for possible paths in the 2D Matrix example in a short dry-run on paper. Don’t start with a slogan — start with that picture.

Smallest example: the smallest Check for possible paths in the 2D Matrix example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Check for possible paths in the 2D Matrix.

From the example next to this theory: Check for possible paths in the 2D Matrix — arrays give O(1) index access; matrices are arrays of arrays.

Trap: only saying “Check for possible paths in the 2D Matrix” with no example. Fix that before you talk about advanced DSA.

Viva: what is Check for possible paths in the 2D Matrix? Then show the smallest Check for possible paths in the 2D Matrix example you can type. Then name the trap.

Exam tip

What is Check for possible paths in the 2D Matrix? Show this: the smallest Check for possible paths in the 2D Matrix example you can type. Trap: only saying “Check for possible paths in the 2D Matrix” with no example.

Example

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

Check for possible paths in the 2D Matrix — arrays give O(1) index access; matrices are arrays of arrays.

Short notes

DefCheck for possible paths in the 2D Matrix — a short Check for possible paths in the 2D Matrix example in a short dry-run on paper.
Rulethe smallest Check for possible paths in the 2D Matrix example you can type
Traponly saying “Check for possible paths in the 2D Matrix” with no example
Usea short dry-run on paper

Check for possible paths in the 2D Matrix

From the example next to this theory: Check for possible paths in the 2D Matrix — arrays give O(1) index access; matrices are arrays of arrays.

Trap: only saying “Check for possible paths in the 2D Matrix” with no example. Fix that before you talk about advanced DSA.

Viva: what is Check for possible paths in the 2D Matrix? Then show the smallest Check for possible paths in the 2D Matrix 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

Check for possible paths in the 2D Matrix — arrays give O(1) index access; matrices are arrays of arrays.

Short notes

DefCheck for possible paths in the 2D Matrix — a short Check for possible paths in the 2D Matrix example in a short dry-run on paper.
Rulethe smallest Check for possible paths in the 2D Matrix example you can type
Traponly saying “Check for possible paths in the 2D Matrix” with no example
Usea short dry-run on paper

Check for possible paths in the 2D Matrix

Example

Short notes

Questions

Check for possible paths in the 2D Matrix

Example

Short notes

Questions