Find whether an array is subset of another array

Find whether an array is subset of another array is a DSA topic. In plain words you use it for a short Find whether an array is subset of another array example in a short dry-run on paper. Don’t start with a slogan — start with that picture.

Smallest example: the smallest Find whether an array is subset of another array example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Find whether an array is subset of another array.

From the example next to this theory: Find whether an array is subset of another array — arrays give O(1) index access; matrices are arrays of arrays.

Trap: only saying “Find whether an array is subset of another array” with no example. Fix that before you talk about advanced DSA.

Viva: what is Find whether an array is subset of another array? Then show the smallest Find whether an array is subset of another array example you can type. Then name the trap.

Diagram

  index →  0    1    2
  array → [10,  20,  30]

Exam tip

What is Find whether an array is subset of another array? Show this: the smallest Find whether an array is subset of another array example you can type. Trap: only saying “Find whether an array is subset of another array” with no example.

Example

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

Find whether an array is subset of another array — arrays give O(1) index access; matrices are arrays of arrays.

Short notes

DefFind whether an array is subset of another array — a short Find whether an array is subset of another array example in a short dry-run on paper.
Rulethe smallest Find whether an array is subset of another array example you can type
Traponly saying “Find whether an array is subset of another array” with no example
Usea short dry-run on paper

Find whether an array is subset of another array

From the example next to this theory: Find whether an array is subset of another array — arrays give O(1) index access; matrices are arrays of arrays.

Trap: only saying “Find whether an array is subset of another array” with no example. Fix that before you talk about advanced DSA.

Viva: what is Find whether an array is subset of another array? Then show the smallest Find whether an array is subset of another array example you can type. Then name the trap.

Diagram

  index →  0    1    2
  array → [10,  20,  30]

Exam tip

Example

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

Find whether an array is subset of another array — arrays give O(1) index access; matrices are arrays of arrays.

Short notes

DefFind whether an array is subset of another array — a short Find whether an array is subset of another array example in a short dry-run on paper.
Rulethe smallest Find whether an array is subset of another array example you can type
Traponly saying “Find whether an array is subset of another array” with no example
Usea short dry-run on paper

Find whether an array is subset of another array

Example

Short notes

Questions

Find whether an array is subset of another array

Example

Short notes

Questions