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26 changes: 23 additions & 3 deletions InsertionSort.java
Original file line number Diff line number Diff line change
@@ -1,14 +1,34 @@
// сортировка вставками

public class InsertionSort {
public static insertionSort(int[] arr) {
/**
* сортировка вставками по убыванию
*/
public static void insertionSort(int[] arr) {
for (int i = 1; i < arr.length; i++) {
int x = arr[i];
int j = i - 1;
while (j > 0 && arr[j] < x) {
while (j >= 0 && arr[j] < x) {
arr[j + 1] = arr[j];
j--;
}
arr[j + 1] = x;
}
}

/**
* Сортировка вставками по возрастанию
* @param list принимает список, элементы которого реализуют интерфейс {@code Comparable}
* @throws UnsupportedOperationException если список неизменяемый (unmodifiable)
*/
public static <T extends Comparable<? super T>> void insertionSort(List<T> list) {
for (int i = 1; i < list.size(); i++) {
T value = list.get(i);
int j = i - 1;
while (j >= 0 && list.get(j).compareTo(value) > 0) {
list.set(j + 1, list.get(j));
j--;
}
list.set(j + 1, value);
}
}
}
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