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andrewgazelka/MathUtils.kt Secret

Created February 28, 2019 16:33
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MathUtils.kt
private fun distinctLoopHelper(depth: Int, range: IntRange, on: Int, counter: IntArray) = sequence {
for (i in range) {
counter[on] = i
if (depth == 0) {
yield(counter)
}
else yieldAll(distinctLoopHelper(depth - 1, i..range.endInclusive, on + 1, counter))
}
}
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