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DSA · Theory

Median in a stream of integers (running integers)

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Theory

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Median in a stream of integers (running integers)

Median in a stream of integers (running integers) is a DSA idea you prove with Median in a stream of integers running integers on Kabir's board, not with a slogan.

Keep Median in a stream of integers (running integers) small. Kabir should finish Median in a stream of integers running integers on Kabir's board in a few lines, not a 40-line dump.

Median in a stream of integers (running integers) exists so Kabir can keep Median in a stream of integers running integers on Kabir's board correct in lab hour.

Use Median in a stream of integers (running integers) when Median in a stream of integers running integers on Kabir's board must stay clear. If a simpler DSA step works, use that instead.

Median in a stream of integers (running integers) trap: copy-pasting Median in a stream of integers running integers without a dry-run. Kabir loses marks for that every viva.

Place Median in a stream of integers (running integers) next to nearby DSA work — one Median in a stream of integers running integers step Kabir can write from memory is the link.

Viva for Median in a stream of integers (running integers): what it is → one Median in a stream of integers running integers step Kabir can write from memory → the mistake (copy-pasting Median in a stream of integers running integers without a dry-run).

Exam tip

Say Median in a stream of integers (running integers) in one breath, then one Median in a stream of integers running integers step Kabir can write from memory, then copy-pasting Median in a stream of integers running integers without a dry-run.

Example

# Median in a stream of integers (running integers)
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)

Median in a stream of integers (running integers): dry-run [4, 1, 3]. Say the list after one step.

Short notes

  • DefMedian in a stream of integers (running integers) — Kabir uses it for Median in a stream of integers running integers on Kabir's board in lab hour.
  • RuleMedian in a stream of integers (running integers) → one Median in a stream of integers running integers step Kabir can write from memory.
  • RememberMedian in a stream of integers (running integers) + time vs memory (lab hour).
  • UseMedian in a stream of integers (running integers) in lab hour (Median in a stream of integers running integers on Kabir's board).
  • TrapMedian in a stream of integers (running integers) — copy-pasting Median in a stream of integers running integers without a dry-run.
  • ExMedian in a stream of integers (running integers) → Median in a stream of integers running integers on Kabir's board.

Questions

1

In one breath: what does Median in a stream of integers (running integers) do for Kabir?

2

Name one DSA screen/job that needs Median in a stream of integers (running integers).

3

Which mistake makes Median in a stream of integers running integers on Kabir's board fail?

4

Write the smallest Median in a stream of integers (running integers) step on Median in a stream of integers running integers on Kabir's board. What happens?

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