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DSA · Theory

Counting Beautiful Numbers in a Specified Range

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Theory

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Counting Beautiful Numbers in a Specified Range

Counting Beautiful Numbers in a Specified Range sits in a viva board. Kabir’s job is Counting Beautiful Numbers in a Specified Range on Kabir's board. Write that first.

Counting Beautiful Numbers in a Specified Range on the board: one Counting Beautiful Numbers in a Specified Range step Kabir can write from memory. Then say what Counting Beautiful Numbers in a Specified Range on Kabir's board looks like after.

Without Counting Beautiful Numbers in a Specified Range, a viva board gets messy and Counting Beautiful Numbers in a Specified Range on Kabir's board is hard to trust.

Counting Beautiful Numbers in a Specified Range shows up in a viva board. Name Counting Beautiful Numbers in a Specified Range on Kabir's board, not “a real-world scenario”.

Counting Beautiful Numbers in a Specified Range miss: skipping the failure case for Counting Beautiful Numbers in a Specified Range. Fix it before you talk about advanced DSA.

Counting Beautiful Numbers in a Specified Range is not a lonely heading. Kabir ties it to Counting Beautiful Numbers in a Specified Range on Kabir's board.

One breath for Counting Beautiful Numbers in a Specified Range, then Counting Beautiful Numbers in a Specified Range on Kabir's board, then skipping the failure case for Counting Beautiful Numbers in a Specified Range. Sit down.

Exam tip

Say Counting Beautiful Numbers in a Specified Range in one breath, then one Counting Beautiful Numbers in a Specified Range step Kabir can write from memory, then skipping the failure case for Counting Beautiful Numbers in a Specified Range.

Example

# Counting Beautiful Numbers in a Specified Range
data = [4, 1, 3]
print("start", data)
if data[0] > data[1]:
    data[0], data[1] = data[1], data[0]
print("after one step", data)

Counting Beautiful Numbers in a Specified Range: dry-run [4, 1, 3]. Say the list after one step.

Short notes

  • DefCounting Beautiful Numbers in a Specified Range — Kabir uses it for Counting Beautiful Numbers in a Specified Range on Kabir's board in a viva board.
  • RuleCounting Beautiful Numbers in a Specified Range → one Counting Beautiful Numbers in a Specified Range step Kabir can write from memory.
  • RememberCounting Beautiful Numbers in a Specified Range + time vs memory (a viva board).
  • UseCounting Beautiful Numbers in a Specified Range in a viva board (Counting Beautiful Numbers in a Specified Range on Kabir's board).
  • TrapCounting Beautiful Numbers in a Specified Range — skipping the failure case for Counting Beautiful Numbers in a Specified Range.
  • ExCounting Beautiful Numbers in a Specified Range → Counting Beautiful Numbers in a Specified Range on Kabir's board.

Questions

1

In one breath: what does Counting Beautiful Numbers in a Specified Range do for Kabir?

2

Name one DSA screen/job that needs Counting Beautiful Numbers in a Specified Range.

3

Viva: one wrong answer people give for Counting Beautiful Numbers in a Specified Range.

4

Show Counting Beautiful Numbers in a Specified Range in time vs memory terms — three lines max.

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