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TheAlgorithms
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src/main/java/com/thealgorithms/maths/PerfectCube.java
34 строки
978 B
Piotr Idzik
style: enable `HideUtilityClassConstructor` in checkstyle (#5147)
08 май 2024, 09:58
Не верифицирован
08 май 2024, 09:58
d3bb691
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package com.thealgorithms.maths; /** * https://en.wikipedia.org/wiki/Cube_(algebra) */ public final class PerfectCube { private PerfectCube() { } /** * Check if a number is perfect cube or not * * @param number number to check * @return {@code true} if {@code number} is perfect cube, otherwise * {@code false} */ public static boolean isPerfectCube(int number) { number = Math.abs(number); // converting negative number to positive number int a = (int) Math.pow(number, 1.0 / 3); return a * a * a == number; } /** * Check if a number is perfect cube or not by using Math.cbrt function * * @param number number to check * @return {@code true} if {@code number} is perfect cube, otherwise * {@code false} */ public static boolean isPerfectCubeMathCbrt(int number) { double cubeRoot = Math.cbrt(number); return cubeRoot == (int) cubeRoot; } }