# Play a guessing game with the user.  The goal is for the user to figure
# out which number between 1 and 100 that the computer chose in as few
# guesses as possible.
import random

# Pick the target number that the user is trying to guess
upper_limit = 100
lower_limit = 1
target = random.randrange(lower_limit, upper_limit+1)

# Read the guess from the user
guess = int(input("Enter an integer between " + str(lower_limit) + " and " + str(upper_limit) + ": "))
while guess < lower_limit or guess > upper_limit:
  print("That wasn't a valid guess.  Try again...")
  guess = int(input("Enter an integer between " + str(lower_limit) + " and " + str(upper_limit) + ": "))
count = 1

# While loop that runs as long as the user is incorrect
while guess != target:
  # Report whether the user's guess was too high or too low
  if guess > target:
    print("That's too high!")
    upper_limit = guess - 1
  if guess < target:
    print("That's too low!")
    lower_limit = guess + 1

  # Count the guess
  count = count + 1

  # Read another guess from the user
  guess = int(input("Enter an integer between " + str(lower_limit) + " and " + str(upper_limit) + ": "))
  while guess < lower_limit or guess > upper_limit:
    print("That wasn't a valid guess.  Try again...")
    guess = int(input("Enter an integer between " + str(lower_limit) + " and " + str(upper_limit) + ": "))


# Report that the user has found the target number and the number of guesses
# needed to find it
print("That's correct!  And it only took you", count, "guesses!")