JuniorTheoryCommon

What does the program print?

KOTLIN

fun diff(a: Int, b: Int): Int {
    return a - b
}

fun main() {
    println(diff(10, diff(6, 2)))
}

Expecting 2: reading it as 10 - 6 - 2 from left to right. The inner call runs first and returns 4, and only then diff(10, 4) returns 6.
Expecting -14: thinking the arguments fill the parameters from the end. The first argument goes to a and the second to b, so diff(6, 2) is 4.

JuniorTheoryCommon

KOTLIN

fun diff(a: Int, b: Int): Int {
    return a - b
}

fun main() {
    println(diff(10, diff(6, 2)))
}

Expecting 2: reading it as 10 - 6 - 2 from left to right. The inner call runs first and returns 4, and only then diff(10, 4) returns 6.
Expecting -14: thinking the arguments fill the parameters from the end. The first argument goes to a and the second to b, so diff(6, 2) is 4.