Find maximum value of Sum(i*arr[i]) with only rotations on given array allowed

Find maximum value of Sum(i*arr[i]) with only rotations on given array allowed is a DSA topic. In plain words you use it for a short Find maximum value of Sumi*arr[i] with only rotations on given array allowed example in a short dry-run on paper. Don’t start with a slogan — start with that picture.

Smallest example: the smallest Find maximum value of Sumi*arr[i] with only rotations on given array allowed example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Find maximum value of Sum(i*arr[i]) with only rotations on given array allowed.

From the example next to this theory: Find maximum value of Sum(i*arr[i]) with only rotations on given array allowed — arrays give O(1) index access; matrices are arrays of arrays.

Trap: only saying “Find maximum value of Sumi*arr[i] with only rotations on given array allowed” with no example. Fix that before you talk about advanced DSA.

Viva: what is Find maximum value of Sum(i*arr[i]) with only rotations on given array allowed? Then show the smallest Find maximum value of Sumi*arr[i] with only rotations on given array allowed example you can type. Then name the trap.

Diagram

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

Exam tip

What is Find maximum value of Sum(i*arr[i]) with only rotations on given array allowed? Show this: the smallest Find maximum value of Sumi*arr[i] with only rotations on given array allowed example you can type. Trap: only saying “Find maximum value of Sumi*arr[i] with only rotations on given array allowed” 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 maximum value of Sum(i*arr[i]) with only rotations on given array allowed — arrays give O(1) index access; matrices are arrays of arrays.

Short notes

DefFind maximum value of Sum(i*arr[i]) with only rotations on given array allowed — a short Find maximum value of Sumi*arr[i] with only rotations on given array allowed example in a short dry-run on paper.
Rulethe smallest Find maximum value of Sumi*arr[i] with only rotations on given array allowed example you can type
Traponly saying “Find maximum value of Sumi*arr[i] with only rotations on given array allowed” with no example
Usea short dry-run on paper

Find maximum value of Sum(i*arr[i]) with only rotations on given array allowed

From the example next to this theory: Find maximum value of Sum(i*arr[i]) with only rotations on given array allowed — arrays give O(1) index access; matrices are arrays of arrays.

Trap: only saying “Find maximum value of Sumi*arr[i] with only rotations on given array allowed” with no example. Fix that before you talk about advanced DSA.

Diagram

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

Exam tip

Find maximum value of Sum(i*arr[i]) with only rotations on given array allowed

Example

Short notes

Questions

Find maximum value of Sum(i*arr[i]) with only rotations on given array allowed

Example

Short notes

Questions