What will be the output of this Swift code?

medium📝 Predict Output Q5 of 15

Swift - Loops

var n = 5
while n > 0 {
    print(n * 2)
    n -= 2
}

A10 8 6 4 2

B10 6 2

C10 8 6

D10 8 4 2

Step-by-Step Solution

Solution:

Step 1: Trace the loop values of n and printed output
n=5 prints 10, n=3 prints 6, n=1 prints 2, then n=-1 stops loop.
Step 2: List printed values
Printed values are 10, 6, and 2.
Final Answer:
10 6 2 -> Option B
Quick Check:
Loop prints n*2 while n>0 = 10 6 2 [OK]

Quick Trick: Update loop variable correctly to avoid infinite loops [OK]

Common Mistakes:

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