is there a way to do this less copy-pasty that isn...

# announcements

[LastExceed]

is there a way to do this less copy-pasty that isn't completely over-engineered ?

Untitled

[allan.conda]

how about making another function and pass a normal and reversed array?

[allan.conda]

just a sum fun

[bezrukov]

fun diagonalDifference(arr: Array<Array<Int>>): Int {
    return arr.foldIndexed(0) { index, accumulator, element ->
        accumulator + element[index] - element[element.lastIndex - index]
    }.abs()
}

[LastExceed]

@bezrukov that's a genious solution. though i have to comment that Int.abs() doesnt exist (you probably meant Int.absoluteValue ). thanks

[bezrukov]

yep, sure