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8 lines
294 B
Kotlin
8 lines
294 B
Kotlin
tailRecursive fun String.repeat(num : Int, acc : StringBuilder = StringBuilder()) : String =
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if (num == 0) acc.toString()
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else repeat(num - 1, acc.append(this))
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fun box() : String {
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val s = "a".repeat(10000)
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return if (s.length == 10000) "OK" else "FAIL: ${s.length}"
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} |