DSA · Theory

Program for mean and median of an unsorted array

Theory

736/810

Program for mean and median of an unsorted array

Program for mean and median of an unsorted array is a DSA topic. In plain words you use it for names A→Z in the roll list. Don’t start with a slogan — start with that picture.

Smallest example: n log n vs n². Type it, run it, and say what you see. If you can do that from memory, you know Program for mean and median of an unsorted array.

From the example next to this theory: Program for mean and median of an unsorted array — arrays give O(1) index access; matrices are arrays of arrays.

Trap — unstable sort when equal keys matter. Fix that before you talk about advanced DSA.

Viva — what is Program for mean and median of an unsorted array? Then show n log n vs n². Then name the trap.

Diagram

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

Exam tip

What is Program for mean and median of an unsorted array? Show this: n log n vs n². Trap: unstable sort when equal keys matter.

Example

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

Program for mean and median of an unsorted array — arrays give O(1) index access; matrices are arrays of arrays.

Short notes

DefProgram for mean and median of an unsorted array — names A→Z in the roll list.
Rulen log n vs n²
Trapunstable sort when equal keys matter
Usethe roll list

DSA · Theory

Program for mean and median of an unsorted array

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Theory

736/810

Program for mean and median of an unsorted array

Program for mean and median of an unsorted array is a DSA topic. In plain words you use it for names A→Z in the roll list. Don’t start with a slogan — start with that picture.

Smallest example: n log n vs n². Type it, run it, and say what you see. If you can do that from memory, you know Program for mean and median of an unsorted array.

From the example next to this theory: Program for mean and median of an unsorted array — arrays give O(1) index access; matrices are arrays of arrays.

Trap — unstable sort when equal keys matter. Fix that before you talk about advanced DSA.

Viva — what is Program for mean and median of an unsorted array? Then show n log n vs n². Then name the trap.

Diagram

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

Exam tip

What is Program for mean and median of an unsorted array? Show this: n log n vs n². Trap: unstable sort when equal keys matter.

Example

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

Program for mean and median of an unsorted array — arrays give O(1) index access; matrices are arrays of arrays.

Short notes

DefProgram for mean and median of an unsorted array — names A→Z in the roll list.
Rulen log n vs n²
Trapunstable sort when equal keys matter
Usethe roll list

Program for mean and median of an unsorted array

Example

Short notes

Questions

Program for mean and median of an unsorted array

Example

Short notes

Questions