P3: Exactly two ones

Due
2026-02-25T23:59

Goals

• Get practice building novel circuits

Objective

Construct a circuit with 4 inputs that outputs a 1 if exactly two of the four inputs is 1 and 0 otherwise.

Requirements

• your work must be in a file called two_ones.circ
• your implementation must be in the main circuit (this would be the default)
• your circuit must have four inputs, labeled A,B,C, and D
• your circuit must have one output labeled TWO_ONES
• you are restricted to
  • input pins
  • output pins
  • components in the Gates library (i.e., basic logic gates)

Submission

Upload your .circ file to Gradescope.