Guess the number/With feedback (player): Difference between revisions
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=={{header|Perl 6}}== |
=={{header|Perl 6}}== |
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<lang perl6> |
<lang perl6>multi sub MAIN() { MAIN(0, 100) } |
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multi sub MAIN( |
multi sub MAIN($min is copy where ($min >= 0), $max is copy where ($max > $min)) { |
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multi sub MAIN($min is copy where { $^min >= 0 }, $max is copy where { $^max > $min }) { |
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while $min <= $max { |
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my $guess = (($max + $min)/2).floor; |
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loop { |
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given lc prompt "My guess is $guess. Is your number higher, lower or equal? " { |
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when /^e/ { say "I knew it!"; exit } |
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given prompt "My guess is $guess. Is your number [h]igher, [l]ower or [e]qual?" { |
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when /^h/ { $min = $guess + 1 } |
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when /^l/ { $max = $guess } |
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default { say "WHAT!?!?!" } |
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} |
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default { say "WHAT!?!?!"; } |
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} |
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} |
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say "How can your number be both higher and lower than $max?!?!?"; |
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} |
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} |
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You may execute this program with 'perl6 program' or with 'perl6 program min max'. Perl |
You may execute this program with '<tt>perl6 program</tt>' or with '<tt>perl6 program min max</tt>'. Perl 6 creates a usage for us if we don't give the right parameters. It also parses the parameters for us and provides them via <tt>$min</tt> and <tt>$max</tt>. We use multi-subs to provide two MAIN subroutines so the user is able to choose between min and max parameters and no parameters at all, in which case min is set to 0 and max to 100. |
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=={{header|PicoLisp}}== |
=={{header|PicoLisp}}== |
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Revision as of 23:48, 11 July 2011
You are encouraged to solve this task according to the task description, using any language you may know.
The task is to write a player for the game that follows the following rules:
- The scorer will choose a number between set limits. The computer player will print a guess of the target number. The computer asks for a score of whether its guess is higher than, lower than, or equal to the target. The computer guesses, and the scorer scores, in turn, until the computer correctly guesses the target number.
The computer should guess intelligently based on the accumulated scores given. One way is to use a Binary search based algorithm.
Cf. Guess the number/With Feedback, Bulls and cows/Player
Ada
<lang Ada>with Ada.Text_IO; procedure Guess_Number_Player is
procedure Guess_Number (Lower_Limit : Integer; Upper_Limit : Integer) is
type Feedback is (Lower, Higher, Correct);
package Feedback_IO is new Ada.Text_IO.Enumeration_IO (Feedback);
My_Guess : Integer := Lower_Limit + (Upper_Limit - Lower_Limit) / 2;
Your_Feedback : Feedback;
begin
Ada.Text_IO.Put_Line ("Think of a number!");
loop
Ada.Text_IO.Put_Line ("My guess: " & Integer'Image (My_Guess));
Ada.Text_IO.Put ("Your answer (lower, higher, correct): ");
Feedback_IO.Get (Your_Feedback);
exit when Your_Feedback = Correct;
if Your_Feedback = Lower then
My_Guess := Lower_Limit + (My_Guess - Lower_Limit) / 2;
else
My_Guess := My_Guess + (Upper_Limit - My_Guess) / 2;
end if;
end loop;
Ada.Text_IO.Put_Line ("I guessed well!");
end Guess_Number;
package Int_IO is new Ada.Text_IO.Integer_IO (Integer);
Lower_Limit : Integer;
Upper_Limit : Integer;
begin
loop
Ada.Text_IO.Put ("Lower Limit: ");
Int_IO.Get (Lower_Limit);
Ada.Text_IO.Put ("Upper Limit: ");
Int_IO.Get (Upper_Limit);
exit when Lower_Limit < Upper_Limit;
Ada.Text_IO.Put_Line ("Lower limit must be lower!");
end loop;
Guess_Number (Lower_Limit, Upper_Limit);
end Guess_Number_Player;</lang>
AutoHotkey
Works with the AutoHotkey entry at: http://rosettacode.org/wiki/Guess_the_number/With_feedback
<lang AutoHotkey>MaxGuesses = 50
GetParams(LowerBound,UpperBound) If Not GuessNum(LowerBound,UpperBound,MaxGuesses)
MsgBox, 16, Error, Could not guess number within %MaxGuesses% guesses.
GetParams(ByRef LowerBound,ByRef UpperBound) {
WinWait, Number Guessing ahk_class #32770 Sleep, 100 WinGet, InputID, ID ControlGetText, Temp1, Static1, ahk_id %InputID% Temp2 := InStr(Temp1,A_Space,False,32) LowerBound := SubStr(Temp1,31,Temp2 - 31) UpperBound := SubStr(Temp1,Temp2 + 5,-1)
}
GuessNum(LowerBound,UpperBound,MaxGuesses) {
Loop, %MaxGuesses%
{
Guess := LowerBound + ((UpperBound - LowerBound) // 2)
Temp1 := SendGuess(Guess)
ToolTip % Temp1
If Temp1 = Too Low
LowerBound = %Guess%
Else If Temp1 = Too High
UpperBound = %Guess%
Else
Return, 1
}
}
SendGuess(Guess) {
WinGet, InputID, ID, Number Guessing ahk_class #32770
ControlSetText, Edit1, %Guess%, ahk_id %InputID%
ControlSend, Button1, {Enter}, ahk_id %InputID%
Loop
{
Sleep, 50
IfWinExist, Correct ahk_class #32770
Return
Else IfWinExist, Incorrect ahk_class #32770
Break
}
ControlGetText, Temp1, Static2
WinClose
WinWaitClose
IfInString, Temp1, low
Return, "Too Low"
Else
Return, "Too High"
}</lang>
C
<lang C>#include <stdio.h>
int main(){
int bounds[ 2 ] = {1, 100};
char input[ 2 ] = " ";
/* second char is for the newline from hitting [return] */
int choice = (bounds[ 0 ] + bounds[ 1 ]) / 2;
/* using a binary search */
printf( "Choose a number between %d and %d.\n", bounds[ 0 ], bounds[ 1 ] );
do{
switch( input[ 0 ] ){
case 'H':
bounds[ 1 ] = choice;
break;
case 'L':
bounds[ 0 ] = choice;
break;
case 'Y':
printf( "\nAwwwright\n" );
return 0;
}
choice = (bounds[ 0 ] + bounds[ 1 ]) / 2;
printf( "Is the number %d? (Y/H/L) ", choice ); }while( scanf( "%1s", input ) == 1 );
}</lang>
Demonstration (number is 57):
Choose a number between 1 and 100. Is the number 50? (Y/H/L) L Is the number 75? (Y/H/L) H Is the number 62? (Y/H/L) H Is the number 56? (Y/H/L) L Is the number 59? (Y/H/L) H Is the number 57? (Y/H/L) Y Awwwright
Note: if you use the -Wall flag with GCC (tested on 4.3.4), you will see a warning:
main.c: In function ‘main’: main.c:26: warning: control reaches end of non-void function
This is not entirely correct. The only way out of the loop is to enter "Y", which causes a return from inside the loop. A return statement at the end of main would be dead code.
C#
<lang C#>using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading; //Remember to add this if you want the game to pause in RealisticGuess.Start()
namespace ConsoleApplication1 {
class RealisticGuess //Simulates a guessing game between two people. Guessing efficiency is not a goal.
{
private int max;
private int min;
private int guess;
public void Start()
{
Console.Clear();
string input;
try
{
Console.WriteLine("Please enter the lower boundary");
input = Console.ReadLine();
min = Convert.ToInt32(input);
Console.WriteLine("Please enter the upper boundary");
input = Console.ReadLine();
max = Convert.ToInt32(input);
}
catch (FormatException)
{
Console.WriteLine("The entry you have made is invalid. Please make sure your entry is an integer and try again.");
Console.ReadKey(true);
Start();
}
Console.WriteLine("Think of a number between {0} and {1}.", min, max);
Thread.Sleep(2500);
Console.WriteLine("Ready?");
Console.WriteLine("Press any key to begin.");
Console.ReadKey(true);
Guess(min, max);
}
public void Guess(int min, int max)
{
int counter = 1;
string userAnswer;
bool correct = false;
Random rand = new Random();
while (correct == false)
{
guess = rand.Next(min, max);
Console.Clear();
Console.WriteLine("{0}", guess);
Console.WriteLine("Is this number correct? {Y/N}");
userAnswer = Console.ReadLine();
if (userAnswer != "y" && userAnswer != "Y" && userAnswer != "n" && userAnswer != "N")
{
Console.WriteLine("Your entry is invalid. Please enter either 'Y' or 'N'");
Console.WriteLine("Is the number correct? {Y/N}");
userAnswer = Console.ReadLine();
}
if (userAnswer == "y" || userAnswer == "Y")
{
correct = true;
}
if (userAnswer == "n" || userAnswer == "N")
{
counter++;
if (max == min)
{
Console.WriteLine("Error: Range Intersect. Press enter to restart the game."); //This message should never pop up if the user enters good data.
Console.ReadKey(true); //It handles the game-breaking exception that occurs
Guess(1, 101); //when the max guess number is the same as the min number.
}
Console.WriteLine("Is the number you're thinking of lower or higher? {L/H}");
userAnswer = Console.ReadLine();
if (userAnswer != "l" && userAnswer != "L" && userAnswer != "h" && userAnswer != "H")
{
Console.WriteLine("Your entry is invalid. Please enter either 'L' or 'H'");
Console.WriteLine("Is the number you're thinking of lower or higher? {L/H}");
userAnswer = Console.ReadLine();
}
if (userAnswer == "l" || userAnswer == "L")
{
max = guess;
}
if (userAnswer == "h" || userAnswer == "H")
{
min = guess;
}
}
}
if (correct == true)
{
EndAndLoop(counter);
}
}
public void EndAndLoop(int iterations)
{
string userChoice;
bool loop = false;
Console.WriteLine("Game over. It took {0} guesses to find the number.", iterations);
while (loop == false)
{
Console.WriteLine("Would you like to play again? {Y/N}");
userChoice = Console.ReadLine();
if (userChoice != "Y" && userChoice != "y" && userChoice != "N" && userChoice != "n")
{
Console.WriteLine("Sorry, your input is invalid. Please answer 'Y' to play again, or 'N' to quit.");
}
if (userChoice == "Y" || userChoice == "y")
{
Start();
}
if (userChoice == "N" || userChoice == "n")
{
Environment.Exit(1);
}
}
}
}
class Program
{
static void Main(string[] args)
{
Console.Title = "Random Number";
RealisticGuess game = new RealisticGuess();
game.Start();
}
}
} </lang>
Clojure
<lang Clojure>(require '[clojure.string :as str])
(defn guess-game [low high]
(printf "Think of a number between %s and %s.\n (use (h)igh (l)ow (c)orrect)\n" low high)
(loop [guess (/ (inc (- high low)) 2)
[step & more] (next (iterate #(/ % 2) guess))]
(printf "I guess %s\n=> " (Math/round (float guess)))
(flush)
(case (first (str/lower-case (read)))
\h (recur (- guess step) more)
\l (recur (+ guess step) more)
\c (println "Huzzah!")
(do (println "Invalid input.")
(recur guess step)))))</lang>
Output
user=> (guess-game 1 100) Think of a number between 1 and 100. (use (h)igh (l)ow (c)orrect) I guess 50 => l I guess 63 => h I guess 56 => l I guess 59 => l I guess 61 => c Huzzah!
Euphoria
<lang euphoria>include get.e include wildcard.e
sequence Respons integer min, max, Guess min = 0 max = 100
printf(1,"Think of a number between %d and %d.\n",{min,max}) puts(1,"On every guess of mine you should state whether my guess was\n") puts(1,"too high, too low, or equal to your number by typing 'h', 'l', or '='\n")
while 1 do
if max < min then
puts(1,"I think something is strange here...\n")
exit
end if
Guess = floor((max-min)/2+min)
printf(1,"My guess is %d, is this correct? ", Guess)
Respons = upper(prompt_string(""))
if Respons[1] = 'H' then
max = Guess-1
elsif Respons[1] = 'L' then
min = Guess+1
elsif Respons[1] = '=' then
puts(1,"I did it!\n")
exit
else
puts(1,"I do not understand that...\n")
end if
end while</lang>
Fantom
<lang fantom> class Main {
public static Void main ()
{
Int lowerLimit := 1
Int higherLimit := 100
echo ("Think of a number between 1 and 100")
echo ("Press 'enter' when ready")
Env.cur.in.readLine
while (true)
{
if (higherLimit < lowerLimit)
{ // check that player is not cheating!
echo ("Something has gone wrong ... I give up")
break
}
myGuess := (higherLimit + lowerLimit) / 2
echo ("My guess is $myGuess")
echo ("Enter 'H' if your number is higher, 'L' if lower, or 'E' if equal")
switch (Env.cur.in.readLine.trim.upper)
{
case "E":
echo ("I got it correct - thankyou!")
break // game over
case "H":
lowerLimit = myGuess + 1
case "L":
higherLimit = myGuess - 1
default:
echo ("Pardon? Let's try that again")
}
}
}
} </lang>
Example:
Think of a number between 1 and 100 Press 'enter' when ready My guess is 50 Enter 'H' if your number is higher, 'L' if lower, or 'E' if equal a Pardon? Let's try that again My guess is 50 Enter 'H' if your number is higher, 'L' if lower, or 'E' if equal l My guess is 25 Enter 'H' if your number is higher, 'L' if lower, or 'E' if equal h My guess is 37 Enter 'H' if your number is higher, 'L' if lower, or 'E' if equal h My guess is 43 Enter 'H' if your number is higher, 'L' if lower, or 'E' if equal h My guess is 46 Enter 'H' if your number is higher, 'L' if lower, or 'E' if equal h My guess is 48 Enter 'H' if your number is higher, 'L' if lower, or 'E' if equal l My guess is 47 Enter 'H' if your number is higher, 'L' if lower, or 'E' if equal e I got it correct - thankyou!
Fortran
<lang fortran>program Guess_a_number_Player
implicit none
integer, parameter :: limit = 100
integer :: guess, mx = limit, mn = 1
real :: rnum
character(1) :: score
write(*, "(a, i0, a)") "Think of a number between 1 and ", limit, &
" and I will try to guess it."
write(*, "(a)") "You score my guess by entering: h if my guess is higher than that number"
write(*, "(a)") " l if my guess is lower than that number"
write(*, "(a/)") " c if my guess is the same as that number"
call random_seed
call random_number(rnum)
guess = rnum * limit + 1
do
write(*, "(a, i0, a,)", advance='no') "My quess is: ", guess, " Score(h, l or c)?: "
read*, score
select case(score)
case("l", "L")
mn = guess
guess = (mx-guess+1) / 2 + mn
case("h", "H")
mx = guess
guess = mx - (guess-mn+1) / 2
case("c", "C")
write(*, "(a)") "I solved it!"
exit
case default
write(*, "(a)") "I did not understand that"
end select
end do
end program</lang> Output
Think of a number between 1 and 100 and I will try to guess it.
You score my guess by entering: h if my guess is higher than that number
l if my guess is lower than that number
c if my guess is the same as that number
My guess is: 58 Score(h, l or c)?: h
My guess is: 29 Score(h, l or c)?: l
My guess is: 44 Score(h, l or c)?: l
My guess is: 51 Score(h, l or c)?: l
My guess is: 55 Score(h, l or c)?: l
My guess is: 57 Score(h, l or c)?: c
I solved it!
Go
Go's binary search function (sort.Search()) is general enough to be able to do this type of task, as mentioned in the documentation for the function itself.[1]
<lang go>package main
import (
"fmt" "sort"
)
func main() {
lower, upper := 0, 100 fmt.Printf(`Instructions:
Think of integer number from %d (inclusive) to %d (exclusive) and I will guess it. After each guess, I will ask you if it is less than or equal to some number, and you will respond with "yes" or "no". `, lower, upper)
answer := sort.Search(upper-lower, func (i int) bool {
fmt.Printf("Is your number less than or equal to %d? ", lower+i)
s := ""
fmt.Scanf("%s", &s)
return s != "" && s[0] == 'y'
})
fmt.Printf("Your number is %d.\n", lower+answer)
}</lang>
Manual solution: <lang go>package main
import (
"bufio" "fmt" "os"
)
func main() {
lower, upper := 1, 100 fmt.Printf(`Instructions:
Think of integer number from %d (inclusive) to %d (inclusive) and I will guess it. After each guess, you respond with l,h,or c depending on if my guess was too low, too high, or correct. Press enter when you are thinking of a number. `, lower, upper)
in := bufio.NewReader(os.Stdin)
in.ReadString('\n')
for {
guess := (upper+lower)/2
fmt.Printf("My guess: %d (l/h/c) ", guess)
s, err := in.ReadString('\n')
if err != nil {
fmt.Println("\nSo, bye.")
return
}
switch s {
case "l\n":
lower = guess + 1
case "h\n":
upper = guess - 1
case "c\n":
fmt.Println("I did it. :)")
return
default:
fmt.Println("Please respond by pressing l, h, or c")
}
}
}</lang>
Icon and Unicon
<lang Icon> procedure main ()
lower_limit := 1
higher_limit := 100
write ("Think of a number between 1 and 100")
write ("Press 'enter' when ready")
read ()
repeat {
if (higher_limit < lower_limit)
then { # check that player is not cheating!
write ("Something has gone wrong ... I give up")
exit ()
}
my_guess := (higher_limit + lower_limit) / 2
write ("My guess is ", my_guess)
write ("Enter 'H' if your number is higher, 'L' if lower, or 'E' if equal")
reply := map(trim(read ()))
case (reply) of {
"e" : {
write ("I got it correct - thankyou!")
exit () # game over
}
"h" : lower_limit := my_guess + 1
"l" : higher_limit := my_guess - 1
default : write ("Pardon? Let's try that again")
}
}
end </lang>
J
<lang j>require 'misc' guess=:3 :0
'lo hi'=.y
while.lo < hi do.
smoutput 'guessing a number between ',(":lo),' and ',":hi
guess=.lo+?hi-lo
select.{.deb tolower prompt 'is it ',(":guess),'? '
case.'y'do. smoutput 'Win!' return.
case.'l'do. lo=.guess+1
case.'h'do. hi=.guess-1
case.'q'do. smoutput 'giving up' return.
case. do. smouput 'options: yes, low, high, quit'
end.
end.
)</lang>
Example session:
<lang> guess 1 100 guessing a number between 1 and 100 is it 86? hi guessing a number between 1 and 85 is it 56? hi guessing a number between 1 and 55 is it 24? lo guessing a number between 25 and 55 is it 29? lo guessing a number between 30 and 55 is it 43? lo guessing a number between 44 and 55 is it 53? hi guessing a number between 44 and 52 is it 51? hi guessing a number between 44 and 50 is it 48? lo guessing a number between 49 and 50 is it 49? lo 50</lang>
This could be made more efficient by replacing guess=.lo+?hi-lo with guess=.<.-:lo+hi. (The above example would have finished on the first guess, but the range 1..100 would never take more than 6 guesses -- the remaining answers would be determined after six guesses.)
Modula-2
<lang modula2>MODULE raden;
IMPORT InOut;
VAR done, ok : BOOLEAN;
guess, upp, low : CARDINAL;
res : CHAR;
BEGIN
InOut.WriteString ("Choose a number between 0 and 1000.");
InOut.WriteLn;
InOut.WriteLn;
upp := 1000;
low := 0;
REPEAT
ok := FALSE;
guess := ( ( upp - low ) DIV 2 ) + low;
InOut.WriteString ("My guess is"); InOut.WriteCard (guess, 4); InOut.Write (11C);
InOut.WriteString ("How did I score? 'L' = too low, 'H' = too high, 'Q' = OK : ");
InOut.WriteBf;
REPEAT
InOut.Read (res);
res := CAP (res)
UNTIL (res = 'Q') OR (res = 'L') OR (res = 'H');
CASE res OF
'L' : low := guess |
'H' : upp := guess
ELSE
ok := TRUE
END;
UNTIL ok;
InOut.WriteString ("So the number is"); InOut.WriteCard (guess, 4);
InOut.WriteLn;
InOut.WriteString ("Thanks for letting me play with you.");
InOut.WriteLn
END raden.</lang>Example:
raden Choose a number between 0 and 1000. My guess is 500 How did I score? 'L' = too low, 'H' = too high, 'Q' = OK : l My guess is 750 How did I score? 'L' = too low, 'H' = too high, 'Q' = OK : h My guess is 625 How did I score? 'L' = too low, 'H' = too high, 'Q' = OK : h My guess is 562 How did I score? 'L' = too low, 'H' = too high, 'Q' = OK : l My guess is 593 How did I score? 'L' = too low, 'H' = too high, 'Q' = OK : l My guess is 609 How did I score? 'L' = too low, 'H' = too high, 'Q' = OK : h My guess is 601 How did I score? 'L' = too low, 'H' = too high, 'Q' = OK : h My guess is 597 How did I score? 'L' = too low, 'H' = too high, 'Q' = OK : l My guess is 599 How did I score? 'L' = too low, 'H' = too high, 'Q' = OK : l My guess is 600 How did I score? 'L' = too low, 'H' = too high, 'Q' = OK : q So the number is 600 Thanks for letting me play with you.
PARI/GP
<lang parigp> guessnumber2(b)={ my(c=0,d=b,a=0); for(x=1,b,
for(y=1,b,
if(a<c||a==c||a==d||a>d,
a=random(b),
break()
)
);
print("I guess "a" am I h,l,or e ?");
g=input();
if(g==h,
d=a,
if(g==l,
c=a,
if(g==e,
break()
)
)
)
);
} </lang>
Perl 6
<lang perl6>multi sub MAIN() { MAIN(0, 100) } multi sub MAIN($min is copy where ($min >= 0), $max is copy where ($max > $min)) {
say "Think of a number between $min and $max and I'll guess it!";
while $min <= $max {
my $guess = (($max + $min)/2).floor;
given lc prompt "My guess is $guess. Is your number higher, lower or equal? " {
when /^e/ { say "I knew it!"; exit }
when /^h/ { $min = $guess + 1 }
when /^l/ { $max = $guess }
default { say "WHAT!?!?!" }
}
}
say "How can your number be both higher and lower than $max?!?!?";
}</lang>
You may execute this program with 'perl6 program' or with 'perl6 program min max'. Perl 6 creates a usage for us if we don't give the right parameters. It also parses the parameters for us and provides them via $min and $max. We use multi-subs to provide two MAIN subroutines so the user is able to choose between min and max parameters and no parameters at all, in which case min is set to 0 and max to 100.
PicoLisp
<lang PicoLisp>(de guessTheNumber (Min Max)
(prinl "Think of a number between " Min " and " Max ".")
(prinl "On every guess of mine you should state whether my guess was")
(prinl "too high, too low, or equal to your number by typing 'h', 'l', Or '='")
(use Guess
(loop
(NIL (> Max Min)
(prinl "I think somthing is strange here...") )
(prin
"My guess is "
(setq Guess (+ Min (/ (- Max Min) 2)))
",is this correct? " )
(flush)
(NIL
(case (uppc (car (line)))
("H" (setq Max Guess))
("L" (setq Min Guess))
("=" (nil (prinl "I did it!")))
(T (prinl "I do not understand that...")) ) ) ) ) )</lang>
Output:
: (guessTheNumber 1 99) Think of a number between 1 and 99. On every guess of mine you should state whether my guess was too high, too low, or equal to your number by typing 'h', 'l', Or '=' My guess is 50,is this correct? h My guess is 25,is this correct? h My guess is 13,is this correct? l My guess is 19,is this correct? l My guess is 22,is this correct? = I did it!
PureBasic
<lang PureBasic>min=0 max=100
If OpenConsole()
PrintN("Think of a number between "+Str(min)+" and "+Str(max)+".")
PrintN("On every guess of mine you should state whether my guess was")
PrintN("too high, too low, or equal to your number by typing 'h', 'l', Or '='")
Repeat
If max<=min
PrintN("I think somthing is strange here...")
Break
EndIf
Guess=(max-min)/2+min
Print("My guess is "+Str(Guess)+",is this correct? "): Respons.s=UCase(Input())
If Respons="H": max=Guess-1
ElseIf Respons="L": min=Guess+1
ElseIf Respons="="
PrintN("I did it!")
Break
Else
PrintN("I do not understand that...")
EndIf
ForEver
EndIf</lang>
Python
<lang python>inclusive_range = mn, mx = (1, 10)
print(\ Think of a number between %i and %i and wait for me to guess it. On every guess of mine you should state whether the guess was too high, too low, or equal to your number by typing h, l, or = % inclusive_range)
i = 0 while True:
i += 1
guess = (mn+mx)//2
txt = input("Guess %2i is: %2i. The score for which is (h,l,=): "
% (i, guess)).strip().lower()[0]
if txt not in 'hl=':
print(" I don't understand your input of '%s' ?" % txt)
continue
if txt == 'h':
mx = guess-1
if txt == 'l':
mn = guess+1
if txt == '=':
print(" Ye-Haw!!")
break
if (mn > mx) or (mn < inclusive_range[0]) or (mx > inclusive_range[1]):
print("Please check your scoring as I cannot find the value")
break
print("\nThanks for keeping score.")</lang>
Sample Game-play
Think of a number between 1 and 10 and wait for me to guess it. On every guess of mine you should state whether the guess was too high, too low, or equal to your number by typing h, l, or = Guess 1 is: 5. The score for which is (h,l,=): l Guess 2 is: 8. The score for which is (h,l,=): l Guess 3 is: 9. The score for which is (h,l,=): l Guess 4 is: 10. The score for which is (h,l,=): = Ye-Haw!! Thanks for keeping score.
REXX
<lang rexx> /*REXX program to play guess-the-number (with itself!). */
parse arg low high . /*let them choose the range.*/ if low== then low=1 if high== then high=1000
?=random(low,high)
say info="Try to guess my number (it's between" low 'and',
high" inclusive)."
do j=1 say info say call guesser
select
when guess>? then info=right("It's too high.",40)
when guess<? then info=right("It's too low. ",40)
otherwise leave
end
end
say say 'Congratulations! You guessed the secret number in' j "tries." say exit
guesser: upper info
if \datatype(newlow ,'N') then newlow =low
if \datatype(newhigh,'N') then newhigh=high
oldGuess=guess
if pos('HIGH',info)\==0 then newhigh=guess
if pos('LOW' ,info)\==0 then newlow =guess
guess=newlow+(newhigh-newlow)%2
if guess==oldguess then guess=guess+1
say 'My guess is' guess
return
</lang>
Output shown is from playing several games:
Try to guess my number (it's between 1 and 1000 inclusive).
My guess is 500
It's too low.
My guess is 750
It's too low.
My guess is 875
It's too high.
My guess is 812
It's too low.
My guess is 843
It's too high.
My guess is 827
It's too high.
My guess is 819
It's too low.
My guess is 823
It's too low.
My guess is 825
Congratulations! You guessed the secret number in 9 tries.
_________________________________________________________________
Try to guess my number (it's between 1 and 1000 inclusive).
My guess is 500
It's too high.
My guess is 250
It's too high.
My guess is 125
It's too high.
My guess is 63
It's too high.
My guess is 32
It's too low.
My guess is 47
It's too low.
My guess is 55
It's too low.
My guess is 59
It's too high.
My guess is 57
It's too low.
My guess is 58
Congratulations! You guessed the secret number in 10 tries.
_________________________________________________________________
Try to guess my number (it's between 1 and 1000 inclusive).
My guess is 500
It's too high.
My guess is 250
It's too low.
My guess is 375
It's too high.
My guess is 312
It's too low.
My guess is 343
It's too low.
My guess is 359
It's too high.
My guess is 351
Congratulations! You guessed the secret number in 7 tries.
_________________________________________________________________
Try to guess my number (it's between 1 and 1000 inclusive).
My guess is 500
It's too low.
My guess is 750
It's too high.
My guess is 625
It's too low.
My guess is 687
It's too high.
My guess is 656
Congratulations! You guessed the secret number in 5 tries.
_________________________________________________________________
Try to guess my number (it's between 1 and 1000 inclusive).
My guess is 500
It's too high.
My guess is 250
It's too high.
My guess is 125
Congratulations! You guessed the secret number in 3 tries.
Scheme
<lang scheme>(define minimum 1) (define maximum 100)
(display "Enter a number from ")(display minimum) (display " to ")(display maximum)(display ": ") (define number (read))
(define input "")
(do ((guess (round (/ (+ maximum minimum) 2)) (round (/ (+ maximum minimum) 2))))
((string= input "="))
(display "Is it ")(display guess)(display "?\n(h/l/=) > ")
(set! input (symbol->string (read)))
(if (string= input "h") (begin (display "OK...")
(set! maximum (- guess 1))))
(if (string= input "l") (begin (display "OK...")
(set! minimum (+ guess 1)))))
(display "I was RIGHT!\n")</lang>
Tcl
<lang tcl>set from 1 set to 10 fconfigure stdout -buffering none while 1 {
set guess [expr {($from+$to) / 2}]
puts -nonewline "Guess: $guess\tWas it lower (<) equal (=) or higher (>)? "
switch -- [gets stdin] {
< { set from [expr {$guess + 1}] } > { set to [expr {$guess - 1}] } = { puts "Found it: $guess" break } default { puts "What sort of a response was that?!" }
}
if {$to < $from} {
puts "No answer possible?!" break
}
}</lang> Sample run:
Guess: 5 Was it lower (<) equal (=) or higher (>)? < Guess: 8 Was it lower (<) equal (=) or higher (>)? > Guess: 6 Was it lower (<) equal (=) or higher (>)? = Found it: 6