相关疑难解决方法(0)

我不明白:为什么我的插入排序实现每次跳过合并排序,对于任何大小的n？

    public List<Int32> InsertionSort(List<Int32> elements, Boolean ascending = true)
    {
        for (Int32 j = 1; j < elements.Count; j++)
        {
            Int32 key = elements[j];
            Int32 i = j - 1;

            while (i >= 0 && (elements[i].CompareTo(key) > 0) == ascending)
                elements[i + 1] = elements[i--];

            elements[i + 1] = key;
        }

        return elements;
    }

    public List<Int32> MergeSort(List<Int32> elements, Boolean ascending = true)
    {
        Sort(elements, 0, elements.Count - 1);

        return elements;
    }

    private void MergeSort(List<Int32> elements, Int32 startIndex, Int32 …