C++ does not understand the role of temporary variables when implementing insertion sorting

interry[]={5,2,8,3,1};

    for (inti=1; i<5;i++)
    {
　　　　int temp = arry [i];
        int j = i-1;
        while((j>=0) and (arry[j]>temp))
        {
            arry[j+1] = arry[j];
            j = j-1;
        }
        arry[j+1] = temp;
    }

    for (inti=0; i<5;i++)
    {
        cout<arry[i];
    }

 for (inti=1;i<5;i++)
    {
　　    // int temp = arry [i];
        int j = i-1;
        while((j>=0) and (arry[j]>arry[i]))
        {
            arry[j+1] = arry[j];
            j = j-1;
        }
        arry[j+1] = arry[i];
    }