[Solved] Why does this budget control code fail? budget = 50 costs = [20, 40, 10] spent = 0 for cost in costs: if spent + cost | Agentic AI

Agentic AI - Agent Safety and Guardrails

Why does this budget control code fail?

budget = 50
costs = [20, 40, 10]
spent = 0
for cost in costs:
    if spent + cost < budget:
        spent += cost
print(spent)

AIt adds costs even if budget is exceeded

BIt excludes costs equal to budget, missing valid spends

CVariable 'spent' is not initialized

DLoop syntax is incorrect

Step-by-Step Solution

Solution:

Step 1: Check condition for adding costs
Condition uses < budget, so equal costs are excluded.
Step 2: Identify impact on spending
Cost 40 + spent 20 = 60 > 50, so 40 skipped; 10 added later.
Final Answer:
It excludes costs equal to budget, missing valid spends -> Option B
Quick Check:
Use <= to include equal budget spends [OK]

Quick Trick: Use <= to include costs equal to budget [OK]

Common Mistakes:

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Why does this budget control code fail?