Added PancakeSort and the other minor changes
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@ -9,8 +9,8 @@ import static sort.SortUtils.*;
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/**
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/**
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* Heap Sort Algorithm
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* Heap Sort Algorithm
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* Implements MinHeap
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* Implements MinHeap
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*
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*
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* @author Unknown
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* @author Podshivalov Nikita (https://github.com/nikitap492)
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*
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*
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*/
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*/
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public class HeapSort implements SortAlgorithm {
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public class HeapSort implements SortAlgorithm {
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47
Sorts/src/sort/PancakeSort.java
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47
Sorts/src/sort/PancakeSort.java
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@ -0,0 +1,47 @@
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package sort;
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import static sort.SortUtils.*;
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/**
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* Implementation of gnome sort
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*
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* @author Podshivalov Nikita (https://github.com/nikitap492)
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* @since 2018-04-10
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*
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**/
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public class PancakeSort implements SortAlgorithm {
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@Override
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public <T extends Comparable<T>> T[] sort(T[] array){
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int size = array.length;
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for (int i = 0; i < size; i++) {
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T max = array[0];
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int index = 0;
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for (int j = 0; j < size - i; j++) {
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if ( less(max, array[j]) ) {
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max = array[j];
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index = j;
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}
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}
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flip(array, index, array.length - 1 - i);
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}
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return array;
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}
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public static void main(String[] args) {
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Integer[] arr = {10, 9, 8, 7, 6, 15, 14, 7, 4, 3, 8, 6, 3, 1 ,2, -2, -5, -8, -3, -1, 13, 12, 11, 5, 4, 3, 2, 1};
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PancakeSort pancakeSort = new PancakeSort();
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System.out.println("After sorting:");
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pancakeSort.sort(arr);
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print(arr);
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}
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}
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@ -56,6 +56,20 @@ final class SortUtils {
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* @param toPrint - the array which should be printed
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* @param toPrint - the array which should be printed
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*/
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*/
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static void print(Object[] toPrint){
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static void print(Object[] toPrint){
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print(Arrays.asList(toPrint));
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System.out.println(Arrays.toString(toPrint));
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}
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/**
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* Swaps all position from {@param left} to @{@param right} for {@param array}
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* @param array is an array
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* @param left is a left flip border of the array
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* @param right is a right flip border of the array
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*/
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static <T extends Comparable<T>> void flip(T[] array, int left, int right) {
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while (left <= right) {
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swap(array, left++ , right--);
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}
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}
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}
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}
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}
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