What will this Kotlin code print?

medium📝 Predict Output Q5 of 15

Kotlin - Loops and Ranges

var sum = 0
repeat(4) { sum += it }
println(sum)

C10

Step-by-Step Solution

Solution:

Step 1: Calculate sum of repeat indices
repeat(4) runs with it = 0,1,2,3; sum = 0+1+2+3 = 6.
Step 2: Confirm printed value
After loop, sum is 6, so println prints 6.
Final Answer:
6 -> Option A
Quick Check:
Sum of 0 to 3 = 6 [OK]

Quick Trick: Sum indices 0 to n-1 for repeat(n) [OK]

Common Mistakes:

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