Force Vectors - Algorithm

Here's your approach using inheritance:

$1.$ Define a

Vector3D base class with protected x, y, z members and a constructor.

$2.$ Define a

ForceVector class that inherits from Vector3D and adds an add() method.

$3.$ Read $n$, then create a result ForceVector initialized to $(0,0,0)$.

$4.$ Loop $n$ times: read a force vector and add it to result.

$5.$ Check if result equals $(0,0,0)$.

$6.$ Output YES or NO based on the check. The inheritance structure keeps your code organized and extensible.