Created
December 11, 2023 11:21
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| class ClockDegree { | |
| private static void assertValid(String n, double v) { | |
| if (v < 1) throw new IllegalArgumentException(n + " < 1"); | |
| if (v > 12) throw new IllegalArgumentException(n + " > 12"); | |
| } | |
| public static double degree(double h, double m) { | |
| assertValid("h", h); | |
| assertValid("m", m); | |
| h = h == 12 ? 0 : h * 5 * 6; | |
| m = m == 12 ? 0 : m * 5 * 6; | |
| return h > m | |
| ? 360 - (h - m) | |
| : Math.abs(h - m); | |
| } | |
| public static void assertSame(double x, double y) { | |
| if (x != y) | |
| throw new AssertionError(x + " != " + y); | |
| } | |
| public static void main(String[] args) { | |
| assertSame(degree( 1.0, 1.0), 0.0); | |
| assertSame(degree( 2.0, 1.0), 330.0); | |
| assertSame(degree( 1.0, 2.0), 30.0); | |
| assertSame(degree( 9.0, 11.0), 60.0); | |
| assertSame(degree(11.0, 9.0), 300.0); | |
| assertSame(degree(11.5, 9.5), 300.0); | |
| assertSame(degree(12.0, 12.0), 0.0); | |
| assertSame(degree( 3.0, 1.5), 315.0); | |
| assertSame(degree( 3.3, 1.5), 306.0); | |
| assertSame(degree( 1.5, 3.3), 54.0); | |
| System.out.println("OK"); | |
| } | |
| } |
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