31 lines
638 B
Kotlin
31 lines
638 B
Kotlin
// version 1.1.3
|
|
|
|
typealias Func = () -> Unit
|
|
|
|
fun doChar(odd: Boolean, f: Func?): Boolean {
|
|
val c = System.`in`.read()
|
|
if (c == -1) return false // end of stream reached
|
|
val ch = c.toChar()
|
|
|
|
fun writeOut() {
|
|
print(ch)
|
|
if (f != null) f()
|
|
}
|
|
|
|
if (!odd) print(ch)
|
|
if (ch.isLetter()) return doChar(odd, ::writeOut)
|
|
if (odd) {
|
|
if (f != null) f()
|
|
print(ch)
|
|
}
|
|
return ch != '.'
|
|
}
|
|
|
|
fun main(args: Array<String>) {
|
|
repeat(2) {
|
|
var b = true
|
|
while (doChar(!b, null)) b = !b
|
|
System.`in`.read() // remove '\n' from buffer
|
|
println("\n")
|
|
}
|
|
}
|