Re: Python: Help With Beginner Stuff
- From: "R Dinger" <rrdinger@xxxxxxxxxx>
- To: <programmingblind@xxxxxxxxxxxxx>
- Date: Fri, 15 Oct 2010 12:01:42 -0700
Hello again Jim,
Instead of picking a random number between your current lower and upper limits,
the more usual algorithm is to select the value mid way between the lower and
upper limits.
Or do you have a different approach in mind?
Richard
----- Original Message -----
From: Homme, James
To: programmingblind@xxxxxxxxxxxxx
Sent: Friday, October 15, 2010 11:19 AM
Subject: Python: Help With Beginner Stuff
Hi,
I know more than what I'm showing in this program, but I'm taking my learning
back so as not to miss anything crucial. The book I'm reading is in the Jamal
collection of Python docs. It's called "Python Programming for the absolute
beginner." I'm doing the Chapter 3 assignment. The assignment was to write
pseudocode for a program that would simulate the computer guessing a number
from 1 to 100. I wrote the pseudocode. That made me confident enough to take a
stab at writing the program. What follows is my program and one set of output
from it. My question is this. It seems like the way I have worked it out, the
computer is always guessing 10 or 11 times to get the answer. How can I make
the simulation a little more realistic?
=== begin program ===
# comp_guess.py
# By Jim Homme
# October 15, 2010
# Simulate the computer guessing a number between 1 and 100 until it guesses
correctly.
import random
lower = 1
upper = 100
answer = int(raw_input("Give me a number between 1 and 100 for the computer
to guess: "))
print "\nThe answer is %d." % (answer)
comp_guess = random.randint(lower, upper) # The computer makes a guess
guesses = 1
print "For guess %d, the computer guessed %d." % (guesses, comp_guess)
while comp_guess != answer:
if comp_guess < answer:
print "The computer guessed too low."
lower = comp_guess +1 # So it won't guess the same number again.
print "lower is now %d." % (lower)
else:
print "The guess is too high."
upper = comp_guess -1 # So it won't guess the number again.
print "upper is now %d." % (upper)
guesses += 1
comp_guess = random.randint(lower, upper) # Guess again.
print "For guess %d, the computer guessed %d." % (guesses, comp_guess) #
The final guess.
print "The computer guessed the number in %d guesses" % (guesses)
print "Can you beat that?"
raw_input("Press Enter to quit")
=== End program ===
=== Begin output ===
Give me a number between 1 and 100 for the computer to guess:
The answer is 44.
For guess 1, the computer guessed 89.
The guess is too high.
upper is now 88.
For guess 2, the computer guessed 35.
The computer guessed too low.
lower is now 36.
For guess 3, the computer guessed 82.
The guess is too high.
upper is now 81.
For guess 4, the computer guessed 37.
The computer guessed too low.
lower is now 38.
For guess 5, the computer guessed 65.
The guess is too high.
upper is now 64.
For guess 6, the computer guessed 52.
The guess is too high.
upper is now 51.
For guess 7, the computer guessed 41.
The computer guessed too low.
lower is now 42.
For guess 8, the computer guessed 48.
The guess is too high.
upper is now 47.
For guess 9, the computer guessed 47.
The guess is too high.
upper is now 46.
For guess 10, the computer guessed 43.
The computer guessed too low.
lower is now 44.
For guess 11, the computer guessed 44.
The computer guessed the number in 11 guesses
Can you beat that?
Press Enter to quit
=== End Output ===
Jim Homme,
Usability Services,
Phone: 412-544-1810. Skype: jim.homme
Internal recipients, Read my accessibility blog. Discuss accessibility here.
Accessibility Wiki: Breaking news and accessibility advice
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