How does fmt.Scan read lines and split elements by int in Golang?

Question

go

Passing the Diagonal Difference in Go test
My function only passed 2 or 3 tests

spoiler

func diagonalDifference(arr [][]int32) int32 {
var firstDiagonal int32 = 0
var secondDiagonal int32 = 0
for i, slice := range(arr) {
if i == 0 {
continue
}
for j,_ := range(slice) {
if i == 1 && j == 0 {
firstDiagonal = firstDiagonal + arr[i][j]
}
if i == 2 && j == 1 {
firstDiagonal = firstDiagonal + arr[i][j]
}
if i == 3 && j == 2 {
firstDiagonal = firstDiagonal + arr[i][j]
}
if i == 1 && j == 2 {
secondDiagonal = secondDiagonal + arr[i][j]
}
if i == 2 && j == 1 {
secondDiagonal = secondDiagonal + arr[i][j]
}
if i == 3 && j == 0 {
secondDiagonal = secondDiagonal + arr[i][j]
}
}
}
var result int32 = Abs(firstDiagonal - secondDiagonal)
fmt.Println(firstDiagonal)
fmt.Println(secondDiagonal)
return result
}

Found the code https://gist.github.com/ranapu/f9a34a2d0a129259eee...
Launched - all tests passed.
Launched from the console.
I enter lines

3
11 2 4
4 5 6
10 8 -12

How does fmt.Scan read lines and split elements by int in Golang?
In theory, you need to divide the string into elements and get an array from them.
someString := "one two three four"
words := strings.Fields(someString)

Answer 1

Here is the ioutil
set And yes, if strings are entered, you need to split it, and then translate it into int.