#
#  Play a number guessing game with the user.  The computer will choose the 
#  target value, and the user needs to figure out what it is with as few
#  guesses as possible.
#
import random

# Establish the range that will be used for the game.
low = 1
high = 100

# Choose the target value that the user is trying to guess.
target = random.randrange(low, high + 1)

# Read a guess from the user.
guess = int(input(f"Enter a guess between {low} and {high}: "))
count = 1

# Ensure that the value guessed by the user is within the valid range.
while guess < low or guess > high:
  print("That wasn't a valid guess.")
  guess = int(input(f"Enter a guess between {low} and {high}: "))

# While the user has not guessed the target value...
while guess != target:
  # Report whether the user's guess is too high or too low and count the guess
  if guess < target:
    print("Nope.  That guess was too low.")
    low = guess + 1
  elif guess > target:
    print("Too bad.  That guess was too high.")
    high = guess - 1
  count = count + 1

  # Read a guess from the user.
  guess = int(input(f"Enter a guess between {low} and {high}: "))

  # Ensure that the value guessed by the user is within the valid range.
  while guess < low or guess > high:
    print("That wasn't a valid guess.")
    guess = int(input(f"Enter a guess between {low} and {high}: "))


# Report that the user identified the correct value and the number of guesses
# needed
print(f"That's correct! And it only took you {count} guesses!")