Created
November 5, 2015 23:25
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| import java.math.BigInteger; | |
| import java.util.*; | |
| public class Pentanacci2 { | |
| public static long countOddPentaFib(long n) { | |
| // your code | |
| BigInteger temp = new BigInteger("0"); | |
| long count = 0; | |
| List<BigInteger> pentafib = new ArrayList<BigInteger>(); | |
| pentafib.add(BigInteger.valueOf(0)); | |
| pentafib.add(BigInteger.valueOf(1)); | |
| pentafib.add(BigInteger.valueOf(1)); | |
| pentafib.add(BigInteger.valueOf(2)); | |
| pentafib.add(BigInteger.valueOf(4)); | |
| switch ((int)n){ | |
| case 0: return 0; | |
| case 1: | |
| case 2: | |
| case 3: | |
| case 4: return 1; | |
| default: | |
| try { | |
| for (int i = 0; i < n - 4; i++){ //should always pay attention to the fact arrays start with 0 index | |
| for (int j = 0; j < 5; j++){ | |
| try{ | |
| temp = temp.add(pentafib.get(pentafib.size() - 1 - j)); | |
| } catch (IndexOutOfBoundsException ex){ | |
| } | |
| } | |
| pentafib.add(temp); | |
| temp = BigInteger.ZERO; | |
| } | |
| } finally { | |
| } | |
| System.out.println(pentafib); | |
| for (BigInteger t : pentafib) { | |
| try { | |
| if ((t.remainder(BigInteger.valueOf(2))) != BigInteger.ZERO){ | |
| count++; | |
| } | |
| } finally{ | |
| } | |
| } | |
| return --count; | |
| } | |
| } | |
| } |
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