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DSA · Theory

Maximum Deletions on a String

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Theory

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Maximum Deletions on a String

Don’t start Maximum Deletions on a String with jargon. Start with Dev walking through Maximum Deletions on a String. That is the whole point.

Keep Maximum Deletions on a String small. Dev should finish Dev walking through Maximum Deletions on a String in a few lines, not a 40-line dump.

Skip Maximum Deletions on a String and skipping the failure case for Maximum Deletions on a String shows up in a viva board.

Use Maximum Deletions on a String when Dev walking through Maximum Deletions on a String must stay clear. If a simpler DSA step works, use that instead.

Maximum Deletions on a String trap: skipping the failure case for Maximum Deletions on a String. Dev loses marks for that every viva.

Place Maximum Deletions on a String next to nearby DSA work — one Maximum Deletions on a String step Dev can write from memory is the link.

Viva for Maximum Deletions on a String: what it is → one Maximum Deletions on a String step Dev can write from memory → the mistake (skipping the failure case for Maximum Deletions on a String).

Exam tip

Board: Dev walking through Maximum Deletions on a String. Dry-run Maximum Deletions on a String. Name the trap: skipping the failure case for Maximum Deletions on a String.

Example

# Maximum Deletions on a String
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)

Maximum Deletions on a String: dry-run [4, 1, 3]. Say the list after one step.

Short notes

  • DefMaximum Deletions on a String — Dev uses it for Dev walking through Maximum Deletions on a String in a viva board.
  • RuleMaximum Deletions on a String → one Maximum Deletions on a String step Dev can write from memory.
  • RememberMaximum Deletions on a String + Big-O (a viva board).
  • UseMaximum Deletions on a String in a viva board (Dev walking through Maximum Deletions on a String).
  • TrapMaximum Deletions on a String — skipping the failure case for Maximum Deletions on a String.
  • ExMaximum Deletions on a String → Dev walking through Maximum Deletions on a String.

Questions

1

Define Maximum Deletions on a String without jargon. Then point at Dev walking through Maximum Deletions on a String.

2

Name one DSA screen/job that needs Maximum Deletions on a String.

3

Viva: one wrong answer people give for Maximum Deletions on a String.

4

Show Maximum Deletions on a String in Big-O terms — three lines max.

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