int cratNumMax = temp[0], nCratNumMax = 0;

for (int i = 0; i < 6; i++)
{
    if (temp[i] > cratNumMax)
    {
        nCratNumMax = i;
        cratNumMax = temp[i];
    }
}

int tempVariable;

for (int i = 0; i < 6; i++)
{
    tempVariable = A[i][nCratNumMax];
    A[i][nCratNumMax] = A[i][cratNumMax];
    A[i][cratNumMax] = tempVariable;
}