# Homework 25, problem 3: build this counter module.
#
# Define:
#   increment()  -- adds 1 to the counter
#   get()        -- returns the current value
#   reset()      -- sets the counter back to 0
#
# The counter itself is a variable declared at the TOP of this file,
# outside the functions, so it persists across calls.
# Use the `global` keyword inside each function to modify it.

# Your code goes here: