vektory79
02/16/2016, 4:14 PMfun reachable(from: String, to: String): Boolean {
val visited = HashSet<String>()
fun dfs(current: String) {
// here we return from the outer function:
if (current == to) return@reachable true // << ERROR: 'return' is not allowed here
// And here -- from local function:
if (!visited.add(current)) return
for (v in current.split('.'))
dfs(v)
}
dfs(from)
return false // if dfs() did not return true already
}