Further optimization of power is added
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@ -254,6 +254,7 @@ public interface Ring<T> : Group<T>, RingOperations<T> {
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public fun T.pow(exponent: ULong): T = when {
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this == zero && exponent > 0UL -> zero
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this == one -> this
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this == -one -> powWithoutOptimization(exponent % 2UL)
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else -> powWithoutOptimization(exponent)
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}
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@ -25,7 +25,7 @@ internal class BigIntAlgebraTest {
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@Test
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fun testKBigIntegerRingPow() {
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BigIntField {
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for (num in 0..5)
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for (num in -5..5)
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for (exponent in 0UL..10UL)
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assertEquals(
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num.toDouble().pow(exponent.toInt()).toLong().toBigInt(),
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