23 lines
641 B
Kotlin
Vendored
23 lines
641 B
Kotlin
Vendored
// !LANGUAGE: +InlineClasses
|
|
|
|
inline class Direction(private val direction: Int) {
|
|
fun dx() = dx[direction]
|
|
fun dy() = dy[direction]
|
|
|
|
companion object {
|
|
private val dx = intArrayOf(0, 1, 0, -1)
|
|
private val dy = intArrayOf(-1, 0, 1, 0)
|
|
}
|
|
}
|
|
|
|
fun box(): String {
|
|
val dirs = arrayOf(Direction(0), Direction(1), Direction(2), Direction(3))
|
|
val expectedDx = intArrayOf(0, 1, 0, -1)
|
|
val expectedDy = intArrayOf(-1, 0, 1, 0)
|
|
for (i in 0 .. 3) {
|
|
if (dirs[i].dx() != expectedDx[i]) throw AssertionError()
|
|
if (dirs[i].dy() != expectedDy[i]) throw AssertionError()
|
|
}
|
|
|
|
return "OK"
|
|
} |