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Which syntax correctly represents a simple emergency alert trigger in pseudocode?

easy🧠 Conceptual Q3 of 15
LLD - Design — Elevator System
Which syntax correctly represents a simple emergency alert trigger in pseudocode?
Aif sensor.detect() { alert.send(); }
Balert.send() if sensor.detect()
Cif sensor.detect() then alert.send()
Dsensor.detect() -> alert.send()
Step-by-Step Solution
Solution:

  1. Step 1: Identify correct conditional syntax

    Common pseudocode uses 'if condition { action; }' format for clarity and correctness.

  2. Step 2: Check options

    if sensor.detect() { alert.send(); } uses braces and semicolon properly. if sensor.detect() then alert.send() misses braces, B reverses order incorrectly, D uses arrow which is not standard.

  3. Final Answer:

    if sensor.detect() { alert.send(); } -> Option A

  4. Quick Check:

    Correct pseudocode syntax = if sensor.detect() { alert.send(); } [OK]
Quick Trick: Use braces and semicolon for clear conditional blocks [OK]
Common Mistakes:
MISTAKES
  • Omitting braces in conditional blocks
  • Using incorrect order or symbols

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