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DSA · Theory

How do you know if an array is bitonic

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Theory

729/810

How do you know if an array is bitonic

How do you know if an array is bitonic is a DSA topic. In plain words you use it for a short How do you know if an array is bitonic example in a short dry-run on paper. Don’t start with a slogan — start with that picture.

Smallest example: the smallest How do you know if an array is bitonic example you can type. Type it, run it, and say what you see. If you can do that from memory, you know How do you know if an array is bitonic.

From the example next to this theory: How do you know if an array is bitonic — arrays give O(1) index access; matrices are arrays of arrays.

Trap: only saying “How do you know if an array is bitonic” with no example. Fix that before you talk about advanced DSA.

Viva: what is How do you know if an array is bitonic? Then show the smallest How do you know if an array is bitonic example you can type. Then name the trap.

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

What is How do you know if an array is bitonic? Show this: the smallest How do you know if an array is bitonic example you can type. Trap: only saying “How do you know if an array is bitonic” with no example.

Example

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

How do you know if an array is bitonic — arrays give O(1) index access; matrices are arrays of arrays.

Short notes

  • DefHow do you know if an array is bitonic — a short How do you know if an array is bitonic example in a short dry-run on paper.
  • Rulethe smallest How do you know if an array is bitonic example you can type
  • Traponly saying “How do you know if an array is bitonic” with no example
  • Usea short dry-run on paper

Questions

1

What is How do you know if an array is bitonic?

2

Give one small example of How do you know if an array is bitonic.

3

What mistake do beginners make with How do you know if an array is bitonic?

4

Where do you use How do you know if an array is bitonic?

729 / 810

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