[Solved] Identify the bug in this emergency alert pseudocode:if sensor.detect() == true alert.send() else alert.send() | LLD

LLD - Design — Elevator System

Identify the bug in this emergency alert pseudocode:

if sensor.detect() == true
 alert.send()
 else
 alert.send()

ABoth branches send alerts, causing duplicate alerts

BMissing braces cause syntax error

CCondition uses '==' instead of '='

DNo bug, code is correct

Step-by-Step Solution

Solution:

Step 1: Analyze conditional branches
Both 'if' and 'else' branches call alert.send(), so alert is sent regardless of condition.
Step 2: Identify impact
This causes duplicate alerts for every check, which is a bug in emergency handling.
Final Answer:
Both branches send alerts, causing duplicate alerts -> Option A
Quick Check:
Duplicate alerts due to both branches sending = Both branches send alerts, causing duplicate alerts [OK]

Quick Trick: Check if both branches do the same action causing duplicates [OK]

Common Mistakes:

MISTAKES

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