Elements to be added so that all elements of a range are present in the array

Elements to be added so that all elements of a range are present in the array is a DSA topic. In plain words you use it for a short Elements to be added so that all elements of a range are present in the array example in a short dry-run on paper. Don’t start with a slogan — start with that picture.

Smallest example: the smallest Elements to be added so that all elements of a range are present in the array example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Elements to be added so that all elements of a range are present in the array.

From the example next to this theory: Elements to be added so that all elements of a range are present in the array — arrays give O(1) index access; matrices are arrays of arrays.

Trap: only saying “Elements to be added so that all elements of a range are present in the array” with no example. Fix that before you talk about advanced DSA.

Viva: what is Elements to be added so that all elements of a range are present in the array? Then show the smallest Elements to be added so that all elements of a range are present in the array example you can type. Then name the trap.

Diagram

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

Exam tip

What is Elements to be added so that all elements of a range are present in the array? Show this: the smallest Elements to be added so that all elements of a range are present in the array example you can type. Trap: only saying “Elements to be added so that all elements of a range are present in the 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

Elements to be added so that all elements of a range are present in the array — arrays give O(1) index access; matrices are arrays of arrays.

Short notes

DefElements to be added so that all elements of a range are present in the array — a short Elements to be added so that all elements of a range are present in the array example in a short dry-run on paper.
Rulethe smallest Elements to be added so that all elements of a range are present in the array example you can type
Traponly saying “Elements to be added so that all elements of a range are present in the array” with no example
Usea short dry-run on paper

Elements to be added so that all elements of a range are present in the array

From the example next to this theory: Elements to be added so that all elements of a range are present in the array — arrays give O(1) index access; matrices are arrays of arrays.

Trap: only saying “Elements to be added so that all elements of a range are present in the array” with no example. Fix that before you talk about advanced DSA.

Diagram

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

Exam tip

Elements to be added so that all elements of a range are present in the array

Example

Short notes

Questions

Elements to be added so that all elements of a range are present in the array

Example

Short notes

Questions