Tips for drawing circuit diagrams:
a. Modules need not always be connected as long as wires are marked with the same
names.
b. In order to declutter some circuits, you can draw representative diagrams to save
on space.
Example of a & b shown below.
c. You may simplify some modules such as Full/Half Adders by drawing a box and
labeling it appropriately. Make sure you still have all necessary input/output
connections. Example shown below.
d. Make sure to add all necessary labels.