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Deletetd tests
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@ -15,63 +15,4 @@ public class FasterFinnSortTest extends AbstractSortTest {
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sortAlg = SortEnum.FASTER_FINN_SORT;
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}
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@Test
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public void testMergeOrder() {
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Integer[] input = {24,25,26,27,28,21,22,23,18,19,20,4,5,6,7,8,9,10,11,12,13,14,15,16,17,3,1,2};
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FasterFinnSort.sort(input, 0, input.length, NaturalOrder.INSTANCE,null, 0, 0);
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}
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@Test
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public void powerTest() {
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Run run1 = new Run(0, 10, 0);
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Run run2 = new Run(10, 20, 0);
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for (int i = 20; i < 10100; i++) {
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System.out.println(i);
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//assertEquals(integerPower(run1, run2, i), power(run1, run2, i));
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assertEquals(power(run1, run2, i),
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power2(run1, run2, i));
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}
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}
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private static int integerPower(Run run1, Run run2, int n) {
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int n_1 = run1.len;
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int n_2 = run2.len;
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int a = 2 * run1.start + n_1 - 1;
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int b = a + n_1 + n_2;
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int result = 0;
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while (a * pow(2, result) == b * pow(2, result)) {
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result++;
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}
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return result;
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}
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private static int power(Run run1, Run run2, int n) {
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/*
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if (run1.start == 0) {
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return 0;
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}
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*/
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int n_1 = run1.end - run1.start;
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int n_2 = run2.end - run2.start;
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double a = ((double) run1.start + 0.5d * n_1) / n;
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double b = ((double) run2.start + 0.5d * n_2) / n;
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int l = 1;
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while ((int) (a * pow(2, l)) == (int) (b * pow(2 ,l))) {
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l++;
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}
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return l;
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}
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private int power2(Run run1, Run run2, int n) {
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long l = (long) run1.start + (long) run2.start; // 2*middleA
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long r = (long) run2.start + (long) run2.end + 1; // 2*middleB
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int a = (int) ((l << 30) / n); // middleA / 2n
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int b = (int) ((r << 30) / n); // middleB / 2n
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return Integer.numberOfLeadingZeros(a ^ b);
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}
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}
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