Dishwasher Drain Hose Connection

Our dishwasher is connected according to the following diagram except that the sink drain and dishwasher drain outlets are connected in the horizontal portion of the drain pipe. When the dishwasher is not used for long time, its P-trap may get clogged.

Here is another diagram for dishwasher drain hose connection:

Both diagrams are from plumbing-troubleshooter.com.