DSA · Theory

When building a Heap, is the structure of the Heap unique

Theory

774/810

When building a Heap, is the structure of the Heap unique

Don’t start When building a Heap, is the structure of the Heap unique with jargon. Start with next patient. That is the whole point.

When building a Heap, is the structure of the Heap unique on the board: heapify + extract. Then say what next patient looks like after.

When building a Heap, is the structure of the Heap unique exists so Arun can keep next patient correct in a clinic.

When building a Heap, is the structure of the Heap unique shows up in a clinic. Name next patient, not “a real-world scenario”.

When building a Heap, is the structure of the Heap unique miss: min-heap vs max-heap mix-up. Fix it before you talk about advanced DSA.

After When building a Heap, is the structure of the Heap unique, Arun should still remember min-heap vs max-heap mix-up.

One breath for When building a Heap, is the structure of the Heap unique, then next patient, then min-heap vs max-heap mix-up. Sit down.

Exam tip

Board: next patient. Dry-run When building a Heap, is the structure of the Heap unique. Name the trap: min-heap vs max-heap mix-up.

Example

import heapq

def heap_sort(arr):
    h = arr[:]
    heapq.heapify(h)
    return [heapq.heappop(h) for _ in range(len(h))]

print(heap_sort([5, 1, 4, 2]))

When building a Heap, is the structure of the Heap unique — heap sort uses a binary heap to repeatedly extract the minimum.

Short notes

DefWhen building a Heap, is the structure of the Heap unique — Arun uses it for next patient in a clinic.
RuleWhen building a Heap, is the structure of the Heap unique → heapify + extract.
RememberWhen building a Heap, is the structure of the Heap unique + Big-O (a clinic).
UseWhen building a Heap, is the structure of the Heap unique in a clinic (next patient).
TrapWhen building a Heap, is the structure of the Heap unique — min-heap vs max-heap mix-up.
ExWhen building a Heap, is the structure of the Heap unique → next patient.

DSA · Theory

When building a Heap, is the structure of the Heap unique

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Theory

774/810

When building a Heap, is the structure of the Heap unique

Don’t start When building a Heap, is the structure of the Heap unique with jargon. Start with next patient. That is the whole point.

When building a Heap, is the structure of the Heap unique on the board: heapify + extract. Then say what next patient looks like after.

When building a Heap, is the structure of the Heap unique exists so Arun can keep next patient correct in a clinic.

When building a Heap, is the structure of the Heap unique shows up in a clinic. Name next patient, not “a real-world scenario”.

When building a Heap, is the structure of the Heap unique miss: min-heap vs max-heap mix-up. Fix it before you talk about advanced DSA.

After When building a Heap, is the structure of the Heap unique, Arun should still remember min-heap vs max-heap mix-up.

One breath for When building a Heap, is the structure of the Heap unique, then next patient, then min-heap vs max-heap mix-up. Sit down.

Exam tip

Board: next patient. Dry-run When building a Heap, is the structure of the Heap unique. Name the trap: min-heap vs max-heap mix-up.

Example

import heapq

def heap_sort(arr):
    h = arr[:]
    heapq.heapify(h)
    return [heapq.heappop(h) for _ in range(len(h))]

print(heap_sort([5, 1, 4, 2]))

When building a Heap, is the structure of the Heap unique — heap sort uses a binary heap to repeatedly extract the minimum.

Short notes

DefWhen building a Heap, is the structure of the Heap unique — Arun uses it for next patient in a clinic.
RuleWhen building a Heap, is the structure of the Heap unique → heapify + extract.
RememberWhen building a Heap, is the structure of the Heap unique + Big-O (a clinic).
UseWhen building a Heap, is the structure of the Heap unique in a clinic (next patient).
TrapWhen building a Heap, is the structure of the Heap unique — min-heap vs max-heap mix-up.
ExWhen building a Heap, is the structure of the Heap unique → next patient.

When building a Heap, is the structure of the Heap unique

Example

Short notes

Questions

When building a Heap, is the structure of the Heap unique

Example

Short notes

Questions