void InsertSort(int nLen)
{
    for (int i = 1; i < nLen; i++)
    {
        int j = i - 1;
        while (g_szArray[j] > g_szArray[i])
        {
            j--;
            if (j < 0)
            {
                break;
            }
        }


        if (j == i - 1)
        {
            continue;
        }

        int tmp = g_szArray[i];
        int k = i;
        while (k > j)
        {
            g_szArray[k] = g_szArray[k - 1];
            k--;
        }

        g_szArray[j + 1] = tmp;
    }
}

 优化一下代码的逻辑:

void InsertSort2(int nLen)
{
    for (int i = 1; i < nLen; i++)
    {
        int tmp = g_szArray[i];
        int j = i - 1;
        while (g_szArray[j] > tmp && j > 0)
        {
            g_szArray[j + 1] = g_szArray[j--];
        }
        g_szArray[j + 1] = tmp;
    }
}

 

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