Guess the number

Guess the number
You are encouraged to solve this task according to the task description, using any language you may know.

Write a program where the program chooses a number between   1   and   10.

A player is then prompted to enter a guess.   If the player guesses wrong,   then the prompt appears again until the guess is correct.

When the player has made a successful guess the computer will issue a   "Well guessed!"   message,   and the program exits.

A   conditional loop   may be used to repeat the guessing until the user is correct.

```  subtype Number is Integer range 1 .. 10;
package Number_IO is new Ada.Text_IO.Integer_IO (Number);
package Number_RNG is new Ada.Numerics.Discrete_Random (Number);
Generator  : Number_RNG.Generator;
My_Number  : Number;
Your_Guess : Number;
```

begin

```  Number_RNG.Reset (Generator);
My_Number := Number_RNG.Random (Generator);
loop
Number_IO.Get (Your_Guess);
exit when Your_Guess = My_Number;
end loop;
```

end Guess_Number;</lang>

Aime

<lang aime>file f; integer n; text s;

f_affix(f, "/dev/stdin");

n = irand(1, 10); o_text("I'm thinking of a number between 1 and 10.\n"); o_text("Try to guess it!\n"); while (1) {

```   f_look(f, "0123456789");
f_near(f, "0123456789", s);
if (atoi(s) != n) {
```

o_text("That's not my number.\n"); o_text("Try another guess!\n");

```   } else {
```

break;

```   }
```

}

o_text("You have won!\n");</lang>

ALGOL 68

Translation of: C
Works with: ALGOL 68 version Revision 1 - no extensions to language used.
Works with: ALGOL 68G version Any - tested with release 1.18.0-9h.tiny.

<lang algol68>main: (

```   INT n;
INT g;
n := ENTIER (random*10+1);
PROC puts = (STRING string)VOID: putf(standout, (\$gl\$,string));
puts("I'm thinking of a number between 1 and 10.");
puts("Try to guess it! ");
DO
IF g = n THEN break
ELSE
puts("That's not my number. ");
puts("Try another guess!")
FI
OD;
break:
puts("You have won! ")
```

)</lang> Sample output:

```I'm thinking of a number between 1 and 10.
Try to guess it!
1
That's not my number.
Try another guess!
2
That's not my number.
Try another guess!
3
You have won!
```

AppleScript

<lang AppleScript>on run

```   -- define the number to be guessed
set numberToGuess to (random number from 1 to 10)
-- prepare a variable to store the user's answer
set guessedNumber to missing value
-- start a loop (will be exited by using "exit repeat" after a correct guess)
repeat
try
-- ask the user for his/her guess
set usersChoice to (text returned of (display dialog "Guess the number between 1 and 10 inclusive" default answer "" buttons {"Check"} default button "Check"))
-- try to convert the given answer to an integer
set guessedNumber to usersChoice as integer
on error
-- something gone wrong, overwrite user's answer with a non-matching value
set guessedNumber to missing value
end try
-- decide if the user's answer was the right one
if guessedNumber is equal to numberToGuess then
-- the user guessed the correct number and gets informed
display dialog "Well guessed! The number was " & numberToGuess buttons {"OK"} default button "OK"
-- exit the loop (quits this application)
exit repeat
end if
end repeat
```

end run</lang>

Or, constraining mutation, and abstracting a little to an until(predicate, function, value) pattern <lang AppleScript>on run

```   -- isMatch :: Int -> Bool
script isMatch
on lambda(x)
tell x to its guess = its secret
end lambda
end script

-- challenge :: () -> {secret: Int, guess: Int}
script challenge
on response()
set v to (text returned of (display dialog ¬
"Guess the number in range 1-10" default answer ¬
"" buttons {"Esc", "Check"} default button ¬
"Check" cancel button "Esc"))

if isInteger(v) then
v as integer
else
-1
end if
end response

on lambda(rec)
{secret:(random number from 1 to 10), guess:response() ¬
of challenge, attempts:(attempts of rec) + 1}
end lambda
end script

-- MAIN LOOP
set rec to |until|(isMatch, challenge, {secret:-1, guess:0, attempts:0})

display dialog (((guess of rec) as string) & ":    Well guessed ! " & ¬
linefeed & linefeed & "Attempts: " & (attempts of rec))
```

end run

-- GENERIC LBRARY FUNCTIONS

-- until :: (a -> Bool) -> (a -> a) -> a -> a on |until|(p, f, x)

```   set mp to mReturn(p)
set v to x

tell mReturn(f)
repeat until mp's lambda(v)
set v to lambda(v)
end repeat
end tell
return v
```

end |until|

-- isInteger :: a -> Bool on isInteger(e)

```   try
set n to e as integer
on error
return false
end try
true
```

end isInteger

-- Lift 2nd class handler function into 1st class script wrapper -- mReturn :: Handler -> Script on mReturn(f)

```   if class of f is script then
f
else
script
property lambda : f
end script
end if
```

end mReturn</lang>

AutoHotkey

<lang AutoHotkey>Random, rand, 1, 10  ; This stores a number between 1 and 10 in the var rand using the Mersenne Twister msgbox I am thinking of a number between 1 and 10.

loop { InputBox, guess, Guess the number, Type in a number from 1 to 10 If (guess = rand) { msgbox Well Guessed! Break ; exits loop } Else Msgbox Try again. } </lang>

AutoIt

<lang autoit> \$irnd = Random(1, 10, 1) \$iinput = -1 While \$input <> \$irnd \$iinput = InputBox("Choose a number", "Please chosse a Number between 1 and 10") WEnd MsgBox(0, "Success", "Well guessed!") </lang>

AWK

<lang AWK>

1. syntax: GAWK -f GUESS_THE_NUMBER.AWK

BEGIN {

```   srand()
n = int(rand() * 10) + 1
print("I am thinking of a number between 1 and 10. Try to guess it.")
while (1) {
getline ans
if (ans !~ /^[0-9]+\$/) {
print("Your input was not a number. Try again.")
continue
}
if (n == ans) {
print("Well done you.")
break
}
print("Incorrect. Try again.")
}
exit(0)
```

} </lang>

BASIC

Applesoft BASIC

<lang ApplesoftBasic>10 N% = RND(1) * 10 + 1 20 PRINT "A NUMBER FROM 1 "; 30 PRINT "TO 10 HAS BEEN "; 40 PRINT "RANDOMLY CHOSEN." 50 FOR Q = 0 TO 1 STEP 0 60 INPUT "ENTER A GUESS. "; G% 70 Q = G% = N% 80 NEXT 90 PRINT "WELL GUESSED!"</lang>

QBasic

<lang qbasic>supervisor: GOSUB initialize GOSUB guessing GOTO continue

initialize: RANDOMIZE TIMER n = 0: r = INT(RND * 100 + 1): g = 0: c\$ = "" RETURN

guessing: WHILE g <> r

```   INPUT "Pick a number between 1 and 100"; g
IF g = r THEN
PRINT "You got it!"
n = n + 1
PRINT "It took "; n; "tries to pick the right number."
ELSEIF g < r THEN
PRINT "Try a larger number."
n = n + 1
ELSE
PRINT "Try a smaller number."
n = n + 1
END IF
```

WEND RETURN

continue: WHILE c\$ <> "YES" AND c\$ <> "NO"

```   INPUT "Do you want to continue? (YES/NO)"; c\$
c\$ = UCASE\$(c\$)
IF c\$ = "YES" THEN
GOTO supervisor
ELSEIF c\$ = "NO" THEN
STOP
END IF
```

WEND</lang>

ZX Spectrum Basic

ZX Spectrum Basic has no conditional loop constructs, so we have to emulate them here using IF and GO TO. <lang zxbasic>1 LET n=INT (RND*10)+1 2 INPUT "Guess a number that's between 1 and 10: ",g: IF g=n THEN PRINT "That's my number!": STOP 3 PRINT "Guess again!": GO TO 2</lang>

BASIC256

<lang BASIC256>n = int(rand * 10) + 1 print "I am thinking of a number from 1 to 10" do

```  input "Guess it > ",g
if g <> n then
print "No luck,  Try again."
endif
```

until g = n print "Yea! You guessed my number."</lang>

Batch File

At the line SET /A rand=%random% %% (10 - 1 + 1)+ 1, if you want to change the minimum and maximum numbers, change all number ones (not counting the one that is in 10) to your desired chosen number and for the maximum, which is 10, do the same, but for maximum (eg. the minimum could be 123 and the maximum could be 321, etc.).<lang dos>@echo off setlocal EnableDelayedExpansion

begin

SET /A rand=%random% %% (10 - 1 + 1)+ 1 SET guess= SET /P guess=Pick a number between 1 and 10:

loop

IF "!guess!" == "" ( EXIT ) SET /A guess=!guess! IF !guess! equ !rand! ( ECHO Well guessed^^! EXIT ) SET guess= SET /P guess=Nope, guess again: GOTO loop</lang>

BBC BASIC

<lang bbcbasic> choose% = RND(10)

```     REPEAT
INPUT "Guess a number between 1 and 10: " guess%
IF guess% = choose% THEN
PRINT "Well guessed!"
END
ELSE
PRINT "Sorry, try again"
ENDIF
UNTIL FALSE</lang>
```

Befunge

Works with: Fungus version 0.28
Works with: CCBI version 2.1

<lang Befunge>v RNG anthouse > v ,,,,,,<

```         v?v       ,
vvvvv      ,
v?????v     ,
vvvvvvvvv    ,
>?????????v   ,
>vvvvvvvvvv<  ,
>??????????<  ,
>vvvvvvvvvv<  ,
>??????????<  ,
>vvvvvvvvvv<  ^"Well guessed!"<
>??????????<        >"oN",,91v  actual game unit
1234567899         ^_91+"!"  ^
1          ^-g22<&<>+,v
+>,,,,,,,,,,,,,,,,^
>>>>>>>>>v^"guessthenumber!"+19<
RNG unit > 22p                 ^</lang>
```

Bracmat

The value is generated by the `clk` function, which returns a (probably) non-integral rational number. The `den` function retrieves the denominators of this number. The rational number, multiplied by its denominator, becomes an natural number. <lang bracmat>( ( GuessTheNumber

``` =   mynumber
.   clk\$:?mynumber
& mod\$(!mynumber*den\$!mynumber.10)+1:?mynumber
&   whl
' ( put'"Guess my number:"
& get':~!mynumber:?K
)
& out'"Well guessed!"
)
```

& GuessTheNumber\$ );</lang>

Brat

<lang brat>number = random 10

p "Guess a number between 1 and 10."

until {

``` true? ask("Guess: ").to_i == number
{ p "Well guessed!"; true }
{ p "Guess again!" }
```

}</lang>

C

<lang c>#include <stdlib.h>

1. include <stdio.h>
2. include <time.h>

int main(void) {

```   int n;
int g;
char c;
```
```   srand(time(NULL));
n = 1 + (rand() % 10);
```
```   puts("I'm thinking of a number between 1 and 10.");
puts("Try to guess it:");
```
```   while (1) {
if (scanf("%d", &g) != 1) {
```

/* ignore one char, in case user gave a non-number */ scanf("%c", &c); continue; }

```       if (g == n) {
```

puts("Correct!"); return 0; }

```       puts("That's not my number. Try another guess:");
}
```

}</lang>

C++

<lang cpp>#include <iostream>

1. include <cstdlib>
2. include <ctime>

int main() {

```   srand(time(0));
int n = 1 + (rand() % 10);
int g;
std::cout << "I'm thinking of a number between 1 and 10.\nTry to guess it! ";
while(true)
{
std::cin >> g;
if (g == n)
break;
else
std::cout << "That's not my number.\nTry another guess! ";
}
std::cout << "You've guessed my number!";
return 0;
```

}

</lang>

C#

<lang csharp>using System;

class GuessTheNumberGame {

```   static void Main()
{
bool numberCorrect = false;
Random randomNumberGenerator = new Random();
int randomNumber = randomNumberGenerator.Next(1, 10+1);

Console.WriteLine("I'm thinking of a number between 1 and 10.  Can you guess it?");
do
{
Console.Write("Guess: ");
```
```           if (userGuess == randomNumber)
{
numberCorrect = true;
Console.WriteLine("Congrats!!  You guessed right!");
}
else
Console.WriteLine("That's not it.  Guess again.");
} while (!numberCorrect);
}
```

};</lang>

Clojure

<lang Clojure> (def target (inc (rand-int 10))

(loop [n 0]

```  (println "Guess a number between 1 and 10 until you get it right:")
```

(if (= guess target) (printf "Correct on the %d guess.\n" n) (do (println "Try again") (recur (inc n)))))) </lang>

COBOL

<lang cobol> IDENTIFICATION DIVISION.

```      PROGRAM-ID. Guess-The-Number.
```
```      DATA DIVISION.
WORKING-STORAGE SECTION.
01  Random-Num PIC 99.
01  Guess      PIC 99.
```
```      PROCEDURE DIVISION.
COMPUTE Random-Num = 1 + (FUNCTION RANDOM * 10)
DISPLAY "Guess a number between 1 and 10:"
```
```          PERFORM FOREVER
ACCEPT Guess
```
```              IF Guess = Random-Num
DISPLAY "Well guessed!"
EXIT PERFORM
ELSE
DISPLAY "That isn't it. Try again."
END-IF
END-PERFORM

GOBACK
.</lang>
```

CoffeeScript

<lang coffeescript>num = Math.ceil(Math.random() * 10) guess = prompt "Guess the number. (1-10)" while parseInt(guess) isnt num

``` guess = prompt "YOU LOSE! Guess again. (1-10)"
```

Works with: node.js

<lang coffeescript>

1. This shows how to do simple REPL-like I/O in node.js.

do ->

``` number = Math.ceil(10 * Math.random())
```
``` guess = ->
interface.question "Guess the number between 1 and 10: ", (answer) ->
# These lines allow the program to terminate.
console.log "GOT IT!"
interface.close()
process.stdin.destroy()
else
console.log "Sorry, guess again"
guess()

guess()
```

</lang>

Common Lisp

<lang lisp>(defun guess-the-number ()

``` (let ((num-guesses 0)
```

(num (1+ (random 9))) (guess nil))

```   (format t "Try to guess a number from 1 to 10!~%")
(loop do (format t "Guess? ")
```

(incf num-guesses) (setf guess (read)) (cond ((not (numberp guess)) (format t "Your guess is not a number!~%")) ((not (= guess num)) (format t "Your guess was wrong. Try again.~%"))) until (and (numberp guess) (= guess num)))

```   (format t "You guessed correctly on the ~:r try!~%" num-guesses)))
```

</lang> Output:

```CL-USER> (guess-the-number)
Try to guess a number from 1 to 10!
Guess? a
Your guess is  not a number!
Guess? 1
Your guess was wrong.  Try again.
Guess? 2
Your guess was wrong.  Try again.
Guess? 3
You guessed correctly on the fourth try!```

D

<lang d> void main() {

```   immutable num = uniform(1, 10).text;
```
```   do write("What's next guess (1 - 9)? ");
```
```   writeln("Yep, you guessed my ", num);
```

}</lang>

Output:
```What's next guess (1 - 9)? 1
What's next guess (1 - 9)? 2
What's next guess (1 - 9)? 3
Yep, you guessed my 3!```

DCL

<lang DCL>\$ time = f\$time() \$ number = f\$extract( f\$length( time ) - 1, 1, time ) + 1 \$ loop: \$ inquire guess "enter a guess (integer 1-10) " \$ if guess .nes. number then \$ goto loop \$ write sys\$output "Well guessed!"</lang>

Output:
```\$ @guess_the_number
enter a guess (integer 1-10) : 5
enter a guess (integer 1-10) : 1
enter a guess (integer 1-10) : 2
enter a guess (integer 1-10) : 3
enter a guess (integer 1-10) : 4
Well guessed!```

Dart

<lang dart> import 'dart:math'; void main() {

``` int y=5;
int max=11,min=1;
var x= new Random();
x=x.nextInt(max-min);
if (y==x)
print("WON");
else
print('Try Again');
```

}

</lang>

Delphi

<lang Delphi>program GuessTheNumber;

{\$APPTYPE CONSOLE}

uses SysUtils;

var

``` theDigit : String ;
```

begin

``` Randomize ;
theDigit := IntToStr(Random(9)+1) ;
while ( theAnswer <> theDigit ) do Begin
Writeln('Please enter a digit between 1 and 10' ) ;
End ;
Writeln('Congratulations' ) ;
```

end. </lang>

Déjà Vu

<lang dejavu>local :number random-range 1 11

while true: if = number to-num !prompt "Guess my number: ": !print "Congratulations, you've guessed it!" return else: !print "Nope, try again."</lang>

Eiffel

<lang Eiffel> class APPLICATION

create make

feature {NONE} -- Initialization

make local number_to_guess: INTEGER do number_to_guess := (create {RANDOMIZER}).random_integer_in_range (1 |..| 10) from print ("Please guess the number!%N") io.read_integer until io.last_integer = number_to_guess loop print ("Please, guess again!%N") io.read_integer end print ("Well guessed!%N") end

end </lang> The code above is simplified if we create a RANDOMIZER, which simplifies reuse (e.g. the code in RANDOMIZER does not have to be recreated for each need of a random number). <lang Eiffel> class RANDOMIZER

inherit ANY redefine default_create end

feature {NONE} -- Initialization

default_create -- <Precursor> local time: TIME do sequence.do_nothing end

feature -- Access

random_integer_in_range (a_range: INTEGER_INTERVAL): INTEGER do Result := (sequence.double_i_th (1) * a_range.upper).truncated_to_integer + a_range.lower end

feature {NONE} -- Implementation

sequence: RANDOM local seed: INTEGER_32 time: TIME once create time.make_now seed := time.hour * (60 + time.minute) * (60 + time.second) * (1000 + time.milli_second) create Result.set_seed (seed) end

end </lang>

Output:
```Please guess the number!
10

9

8

Correct!
```

Elixir

Works with: Elixir version 1.2

<lang elixir>defmodule GuessingGame do

``` def play do
play(Enum.random(1..10))
end

defp play(number) do
guess = Integer.parse(IO.gets "Guess a number (1-10): ")
case guess do
{^number, _} ->
IO.puts "Well guessed!"
{n, _} when n in 1..10 ->
IO.puts "That's not it."
play(number)
_ ->
IO.puts "Guess not in valid range."
play(number)
end
end
```

end

GuessingGame.play</lang>

Erlang

<lang erlang>% Implemented by Arjun Sunel -module(guess_the_number). -export([main/0]).

main() -> io:format("Guess my number between 1 and 10 until you get it right:\n"), N = random:uniform(10), guess(N).

guess(N) -> {ok, [K]} = io:fread("Guess number : ","~d"),

if K=:=N -> io:format("Well guessed!!\n"); true -> guess(N) end. </lang>

ERRE

<lang ERRE> PROGRAM GUESS_NUMBER

! ! for rosettacode.org !

BEGIN

``` RANDOMIZE(TIMER)
N=0
R=INT(RND(1)*100+1)  ! RND function gives a random number from 0 to 1
G=0
C\$=""
```
``` WHILE G<>R DO
INPUT("Pick a number between 1 and 100";G)
IF G=R THEN
PRINT("You got it!")
N+=1
PRINT("It took";N;"tries to pick the right Number.")
ELSIF G<R THEN
PRINT("Try a larger number.")
N+=1
ELSE
PRINT("Try a smaller number.")
N+=1
END IF
END WHILE
```

END PROGRAM </lang> Note: Adapted from Qbasic version.

Euphoria

Translation of: ZX_Spectrum_Basic

<lang Euphoria>include get.e

integer n,g n = rand(10)

puts(1,"I have thought of a number from 1 to 10.\n") puts(1,"Try to guess it!\n")

while 1 do

```   g = prompt_number("Enter your guess: ",{1,10})
if n = g then
exit
end if
puts(1,"Your guess was wrong. Try again!\n")
```

end while

puts(1,"Well done! You guessed it.")</lang>

Factor

<lang factor> USING: io random math math.parser kernel formatting ; IN: guess-the-number

<PRIVATE

gen-number ( -- n )
``` 10 random 1 + ;
```
make-guess ( n -- n ? )
``` dup readln string>number = ;
```
play-game ( n -- n )
``` [ make-guess ]
[ "Guess a number between 1 and 10:" print flush ] do until ;
```

PRIVATE>

guess-the-number ( -- )
``` gen-number play-game
"Yes, the number was %d!\n" printf ;
```

</lang>

Fantom

<lang fantom> class Main {

``` public static Void main ()
{
Str target := (1..10).random.toStr
Str guess := ""
while (guess != target)
{
echo ("Enter a guess: ")
if (guess.trim == target) // 'trim' to remove any spaces/newline
{
echo ("Well guessed!")
break
}
else
echo ("Failed - try again")
}
}
```

} </lang>

Forth

<lang Forth> \ tested with GForth 0.7.0

RND ( -- n) TIME&DATE 2DROP 2DROP DROP 10 MOD ; \ crude random number
ASK ( -- ) CR ." Guess a number between 1 and 10? " ;
GUESS ( -- n) PAD DUP 4 ACCEPT EVALUATE ;
REPLY ( n n' -- n) 2DUP <> IF CR ." No, it's not " DUP . THEN ;
GAME ( -- )
```         RND
CR ." Yes it was " .
CR ." Good guess!"  ;
```

</lang>

Fortran

<lang fortran>program guess_the_number

```implicit none
```
```integer                          :: guess
real                             :: r
integer                          :: i, clock, count, n
integer,dimension(:),allocatable :: seed
```
```real,parameter :: rmax = 10
```

!initialize random number generator:

```call random_seed(size=n)
allocate(seed(n))
call system_clock(count)
seed = count
call random_seed(put=seed)
deallocate(seed)
```

!pick a random number between 1 and rmax:

```call random_number(r)          !r between 0.0 and 1.0
i = int((rmax-1.0)*r + 1.0)    !i between 1 and rmax
```

!get user guess:

```write(*,'(A)') 'Im thinking of a number between 1 and 10.'
do   !loop until guess is correct
```

write(*,'(A)',advance='NO') 'Enter Guess: ' read(*,'(I5)') guess if (guess==i) exit write(*,*) 'Sorry, try again.'

```end do
```
```write(*,*) 'Youve guessed my number!'
```

end program guess_the_number </lang>

FreeBASIC

<lang freebasic>' FB 1.05.0 Win64

Randomize Dim n As Integer = Int(Rnd * 10) + 1 Dim guess As Integer Print "Guess which number I've chosen in the range 1 to 10" Print Do

``` Input " Your guess : "; guess
If n = guess Then
Print "Well guessed!"
End
End If
```

Loop</lang>

Output:

Sample input/output :

```Guess which number I've chosen in the range 1 to 10

Well guessed!
```

GML

<lang GML>var n, g; n = irandom_range(1,10); show_message("I'm thinking of a number from 1 to 10"); g = get_integer("Please enter guess", 1); while(g != n)

```   {
g = get_integer("I'm sorry "+g+" is not my number, try again. Please enter guess", 1);
}
```

show_message("Well guessed!");</lang>

Go

<lang go>package main

import (

```   "fmt"
"math/rand"
"time"
```

)

func main() {

```   fmt.Print("Guess number from 1 to 10: ")
rand.Seed(time.Now().Unix())
n := rand.Intn(10) + 1
for guess := n; ; fmt.Print("No. Try again: ") {
switch _, err := fmt.Scan(&guess); {
case err != nil:
fmt.Println("\n", err, "\nSo, bye.")
return
case guess == n:
fmt.Println("Well guessed!")
return
}
}
```

}</lang>

Groovy

<lang groovy> def random = new Random() def keyboard = new Scanner(System.in) def number = random.nextInt(10) + 1 println "Guess the number which is between 1 and 10: " def guess = keyboard.nextInt() while (number != guess) {

```   println "Guess again: "
guess = keyboard.nextInt()
```

} println "Hurray! You guessed correctly!" </lang>

GW-BASIC

<lang qbasic>10 RANDOMIZE TIMER:N=INT(RND*10+1):G=0 20 PRINT "Guess the number between 1 and 10." 30 WHILE N<>G 40 INPUT "Your guess? ",G 50 WEND 60 PRINT "That's correct!"</lang>

-- Repeat the action until the predicate is true. until_ act pred = act >>= pred >>= flip unless (until_ act pred)

```   | ans == guess = putStrLn "You got it!" >> return True
| otherwise = putStrLn "Nope. Guess again." >> return False
```

main = do

``` ans <- randomRIO (1,10) :: IO Int
putStrLn "Try to guess my secret number between 1 and 10."
```

</lang>

Simple version:

main = randomRIO (1,10) >>= gameloop

gameloop :: Int -> IO () gameloop r = do i <- fmap read getLine if i == r then putStrLn "You got it!" else putStrLn "Nope. Guess again." >> gameloop r </lang>

Icon and Unicon

This solution works in both languages.

<lang unicon>procedure main()

```   n := ?10
repeat {
writes("Pick a number from 1 through 10: ")
if n = numeric(read()) then break
}
write("Well guessed!")
```

end</lang>

J

<lang j>require 'misc' game=: verb define

``` n=: 1 + ?10
smoutput 'Guess my integer, which is bounded by 1 and 10'
whilst. -. guess -: n do.
guess=. {. 0 ". prompt 'Guess: '
if. 0 -: guess do. 'Giving up.' return. end.
smoutput (guess=n){::'no.';'Well guessed!'
end.
```

)</lang>

Example session:

<lang> game Guess my integer, which is bounded by 1 and 10 Guess: 1 no. Guess: 2 Well guessed!</lang>

Java

Works with: Java version 6+

<lang java5>public class Guessing {

```   public static void main(String[] args) throws NumberFormatException{
int n = (int)(Math.random() * 10 + 1);
System.out.print("Guess the number between 1 and 10: ");
System.out.print("Wrong! Guess again: ");
}
System.out.println("Well guessed!");
}
```

}</lang> For pre-Java 6, use a `Scanner` or `BufferedReader` for input instead of `System.console()` (see Input loop#Java).

JavaScript

<lang javascript> function guessNumber() {

``` // Get a random integer from 1 to 10 inclusive
var num = Math.ceil(Math.random() * 10);
var guess;
```
``` while (guess != num) {
guess = prompt('Guess the number between 1 and 10 inclusive');
}
alert('Congratulations!\nThe number was ' + num);
```

}

guessNumber();</lang>

Requires a host environment that supports `prompt` and `alert` such as a browser.

Julia

<lang julia>function guess()

``` number = rand(1:10)
print("Guess my number! ")
print("Nope, try again! ")
end
println("Well guessed!")
```

end</lang>

Output:
```julia> guess()
Guess my number! 6
Nope, try again! 9
Nope, try again! 45
Nope, try again! grr
Nope, try again! 3
Well guessed!```

Kotlin

<lang scala>// version 1.0.5-2

fun main(args: Array<String>) {

```   val rand = java.util.Random()
val n = 1 + rand.nextInt(10)
var guess: Int
println("Guess which number I've chosen in the range 1 to 10\n")
while (true) {
if (n == guess) {
println("\nWell guessed!")
return
}
}
```

}</lang> Sample input/output:

Output:
```Guess which number I've chosen in the range 1 to 10

Well guessed!
```

LabVIEW

This image is a VI Snippet, an executable image of LabVIEW code. The LabVIEW version is shown on the top-right hand corner. You can download it, then drag-and-drop it onto the LabVIEW block diagram from a file browser, and it will appear as runnable, editable code.

Lasso

Command Line

The following example works when Lasso is called from a command line <lang Lasso>local( number = integer_random(10, 1), status = false, guess )

// prompt for a number stdout('Guess a number between 1 and 10: ')

while(not #status) => { #guess = null

// the following bits wait until the terminal gives you back a line of input while(not #guess or #guess -> size == 0) => { #guess = file_stdin -> readSomeBytes(1024, 1000) } #guess = integer(#guess)

if(not (range(#guess, 1, 10) == #guess)) => { stdout('Input not of correct type or range. Guess a number between 1 and 10: ') else(#guess == #number) stdout('Well guessed!') #status = true else stdout('You guessed wrong number. Guess a number between 1 and 10: ') }

}</lang>

Web form

The following example is a web page form <lang Lasso><?LassoScript

local( number = integer(web_request -> param('number') or integer_random(10, 1)), status = false, guess = web_request -> param('guess'), _guess = integer(#guess), message = 'Guess a number between 1 and 10' )

if(#guess) => { if(not (range(#_guess, 1, 10) == #_guess)) => { #Message = 'Input not of correct type or range. Guess a number between 1 and 10' else(#_guess == #number) #Message = 'Well guessed!' #status = true else #Message = 'You guessed wrong number. Guess a number between 1 and 10' } }

?><!DOCTYPE html> <html lang="en"> <head> <title>Guess the number - Rosetta Code</title> </head> <body>

[#message]

[if(not #status)] <form method="post"> <label for="guess">Guess:</label>
<input type="number" name="guess" /> <input name="number" type="hidden" value="[#number]" /> <input name="submit" type="submit" /> </form> [/if] </body> </html></lang>

LFE

<lang lisp> (defmodule guessing-game

``` (export (main 0)))
```

(defun get-player-guess ()

``` (let (((tuple 'ok (list guessed)) (: io fread '"Guess number: " '"~d")))
guessed))
```

```   (cond
(: io format '"Well-guessed!!~n"))
```

(defun main ()

``` (: io format '"Guess the number I have chosen, between 1 and 10.~n")
(check-guess
(: random uniform 10)
(get-player-guess)))
```

</lang>

From the LFE REPL (assuming the above code was saved in the file "guessing-game.lfe"): <lang lisp> > (slurp '"guessing-game.lfe")

1. (ok guessing-game)

> (main) Guess the number I have chosen, between 1 and 10. Guess number: 10 Guess number: 5 Well-guessed!! ok </lang>

Liberty BASIC

<lang lb>number = int(rnd(0) * 10) + 1 input "Guess the number I'm thinking of between 1 and 10. "; guess while guess <> number

```   input "Incorrect! Try again! "; guess
```

wend print "Congratulations, well guessed! The number was "; number;"."</lang>

LiveCode

<lang LiveCode>command guessTheNumber

```   local tNumber, tguess
put random(10) into tNumber
repeat until tguess is tNumber
ask question "Please enter a number between 1 and 10" titled "Guess the number"
if it is not empty then
put it into tguess
if tguess is tNumber then
end if
else
exit repeat
end if
end repeat
```

end guessTheNumber</lang>

Locomotive Basic

<lang locobasic>10 RANDOMIZE TIME:num=INT(RND*10+1):guess=0 20 PRINT "Guess the number between 1 and 10." 30 WHILE num<>guess 40 INPUT "Your guess? ", guess 50 WEND 60 PRINT "That's correct!"</lang>

LOLCODE

There is no native support for random numbers. This solution uses a simple linear congruential generator to simulate them, with the lamentable restriction that the user must first be prompted for a seed. <lang LOLCODE>HAI 1.3

VISIBLE "SEED ME, FEMUR! "! I HAS A seed, GIMMEH seed

HOW IZ I randomizin

```   seed R MOD OF SUM OF 1 AN PRODUKT OF 69069 AN seed AN 10
```

IF U SAY SO

I IZ randomizin MKAY I HAS A answer ITZ SUM OF seed AN 1 I HAS A guess

IM IN YR guesser

```   VISIBLE "WUTS MY NUMBR? "!
GIMMEH guess, guess IS NOW A NUMBR
```
```   BOTH SAEM guess AN answer, O RLY?
YA RLY, VISIBLE "U WIN!", GTFO
OIC
```

IM OUTTA YR guesser

KTHXBYE</lang>

Lua

<lang lua>math.randomseed( os.time() ) n = math.random( 1, 10 )

print( "I'm thinking of a number between 1 and 10. Try to guess it: " )

repeat

```   x = tonumber( io.read() )
```
```   if x == n then
```

print "Well guessed!"

```   else
```

print "Guess again: "

```   end
```

until x == n</lang>

Maple

<lang Maple>GuessNumber := proc()

```   local number;
randomize():
printf("Guess a number between 1 and 10 until you get it right:\n:");
number := rand(1..10)();
printf("Try again!\n:");
end do:
printf("Well guessed! The answer was %d.\n", number);
```

end proc:</lang> <lang Maple>GuessNumber();</lang>

Mathematica / Wolfram Language

<lang Mathematica>number = RandomInteger[{1, 10}]; While[guess =!= number, guess = Input["Guess my number"]]; Print["Well guessed!"]</lang>

MATLAB

<lang matlab>number = ceil(10*rand(1)); [guess, status] = str2num(input('Guess a number between 1 and 10: ','s'));

while (~status || guess ~= number)

```   [guess, status] = str2num(input('Guess again: ','s'));
```

end disp('Well guessed!')</lang>

MAXScript

<lang MAXScript> rand = random 1 10 clearListener() while true do ( userval = getKBValue prompt:"Enter an integer between 1 and 10: " if userval == rand do (format "\nWell guessed!\n"; exit) format "\nChoose another value\n" ) </lang>

Mercury

Mercury does have a 'time' module in its standard library, but it offers an abstract type instead of the seconds-since-the-epoch we want to seed the RNG with. So this is also an example of how easy it is to call out to C. (It's just as easy to call out to C#, Java, and Erlang.) Also, rather than parse the input, this solution prepares the random number to match the typed input. This isn't a weakness of Mercury, just the author's desire to cheat a bit.

<lang Mercury>:- module guess.

- interface.
- import_module io.
- pred main(io::di, io::uo) is det.
- implementation.
- import_module random, string.

main(!IO) :-

```       time(Time, !IO),
random.init(Time, Rand),
random.random(1, 10, N, Rand, _),
main(from_int(N) ++ "\n", !IO).
```
- pred main(string::in, io::di, io::uo) is det.

main(N, !IO) :-

```       io.write_string("Guess the number: ", !IO),
(
Res = ok(S),
( if S = N then io.write_string("Well guessed!\n", !IO)
else main(N, !IO) )
;
Res = error(E)
;
Res = eof
).
```
- pred time(int::out, io::di, io::uo) is det.
- pragma foreign_decl("C", "#include <time.h>").
- pragma foreign_proc("C", time(Int::out, _IO0::di, _IO1::uo),
```                      [will_not_call_mercury, promise_pure],
"Int = time(NULL);").</lang>
```

MIPS Assembly

<lang mips>

1. WRITTEN: August 26, 2016 (at midnight...)
1. This targets MARS implementation and may not work on other implementations
2. Specifically, using MARS' random syscall

.data take_a_guess: .asciiz "Make a guess:" good_job: .asciiz "Well guessed!"

.text #retrieve system time as a seed li \$v0,30 syscall

#use the high order time stored in \$a1 as the seed arg move \$a1,\$a0

#set the seed li \$v0,40 syscall

#generate number 0-9 (random int syscall generates a number where): # 0 <= \$v0 <= \$a1 li \$a1,10 li \$v0,42 syscall

#increment the randomly generated number and store in \$v1 add \$v1,\$a0,1

#go back to beginning of loop if user hasn't guessed right, # else, just "fall through" to exit_procedure bne \$v0,\$v1,loop

exit_procedure: #set syscall to print_string, then set good_job string as arg li \$v0,4 la \$a0,good_job syscall

#exit program li \$v0,10 syscall

print_take_a_guess: li \$v0,4 la \$a0,take_a_guess syscall jr \$ra

read_int: li \$v0,5 syscall jr \$ra </lang>

Nemerle

<lang Nemerle>using System; using System.Console;

module Guess {

```   Main() : void
{
def rand = Random();
def x = rand.Next(1, 11);  // returns 1 <= x < 11
mutable guess = 0;

do
{
WriteLine("Guess a nnumber between 1 and 10:");
} while (guess != x);

WriteLine("Well guessed!");
}
```

}</lang>

NetRexx

<lang NetRexx>/* NetRexx */

options replace format comments java crossref savelog symbols nobinary

guessThis = (Math.random * 10 + 1) % 1 guess = -1 prompt = [ -

``` 'Try guessing a number between 1 and 10', -
'Wrong; try again...' -
]
```

promptIdx = int 0

loop label g_ until guess = guessThis

``` say prompt[promptIdx]
promptIdx = 1
if guess = guessThis then do
say 'Well guessed!' guess 'is the correct number.'
leave g_
end
end g_
```

return </lang>

NewLISP

<lang NewLISP>; guess-number.lsp

oofoe 2012-01-19
http://rosettacode.org/wiki/Guess_the_number

(seed (time-of-day)) ; Initialize random number generator from clock. (setq number (+ 1 (rand 10)))

(println "I'm thinking of a number between 1 and 10. Can you guess it?") (print "Type in your guess and hit [enter]: ") (while (!= number (int (read-line))) (print "Nope! Try again: ")) (println "Well guessed! Congratulations!")

(exit)</lang>

Sample output:

```I'm thinking of a number between 1 and 10. Can you guess it?
Type in your guess and hit [enter]: 5
Nope! Try again: 3
Nope! Try again: 10
Nope! Try again: 1
Nope! Try again: 4
Well guessed! Congratulations!```

Nim

<lang nim> import strutils, math

randomize() var chosen = 1 + random(10) echo "I have thought of a number. Try to guess it!"

while guess != chosen:

``` echo "Your guess was wrong. Try again!"
```

echo "Well guessed!" </lang>

Oberon-2

Works with oo2c Version 2 <lang oberon2> MODULE GuessTheNumber; IMPORT

``` RandomNumbers,
In,
Out;
```
``` PROCEDURE Do;
VAR
n,guess: LONGINT;
BEGIN
n := RandomNumbers.RND(10);
Out.String("Guess a number between 1 and 10: ");Out.Flush();
LOOP
In.LongInt(guess);
IF  guess = n THEN
Out.String("You guessed!!"); Out.Ln; EXIT
END;
Out.String(" Sorry, try again: ");Out.Flush()
END
END Do;
```

BEGIN

``` Do;
```

END GuessTheNumber. </lang>

Objeck

<lang objeck> use IO;

bundle Default {

``` class GuessNumber {
function : Main(args : String[]) ~ Nil {
done := false;
"Guess the number which is between 1 and 10 or 'q' to quite: "->PrintLine();
rand_num := (Float->Random() * 10.0)->As(Int) + 1;
while(done = false) {
number := guess->ToInt();
if(number <> 0) {
if(number <> rand_num) {
"Guess again: "->PrintLine();
}
else {
"Hurray! You guessed correctly!"->PrintLine();
done := true;
};
}
else {
if(guess->StartsWith("q") | guess->StartsWith("Q")) {
done := true;
};
};
};
}
}
```

} </lang>

Objective-C

<lang objc>

1. import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {

```   @autoreleasepool {

NSLog(@"I'm thinking of a number between 1 - 10. Can you guess what it is?\n");

int rndNumber = arc4random_uniform(10) + 1;

// Debug (Show rndNumber in console)
//NSLog(@"Random number is %i", rndNumber);

int userInput;

do {

NSLog(@"Input the number below\n");
scanf("%i", &userInput);

if (userInput > 10) {

NSLog(@"Please enter a number less than 10\n");
}

if (userInput > 10 || userInput != rndNumber) {

} else {

NSLog(@"Your guess %i is correct!", userInput);
}

} while (userInput > 10 || userInput != rndNumber);
}
return 0;
```

} </lang>

OCaml

<lang ocaml>#!/usr/bin/env ocaml

let () =

``` Random.self_init();
let n =
if Random.bool () then
let n = 2 + Random.int 8 in
print_endline "Please guess a number between 1 and 10 excluded";
(n)
else
let n = 1 + Random.int 10 in
print_endline "Please guess a number between 1 and 10 included";
(n)
in
while read_int () <> n do
print_endline "The guess was wrong! Please try again!"
done;
print_endline "Well guessed!"</lang>
```

Oforth

<lang Oforth>import: console

guess
```  10 rand doWhile: [ "Guess :" . System.Console askln asInteger over <> ]
drop "Well guessed!" . ;</lang>
```

Ol

<lang ol> (import (otus random!))

(define number (+ 1 (rand! 10))) (let loop ()

```  (display "Pick a number from 1 through 10: ")
(print "Well guessed!")
(loop)))
```

</lang>

PARI/GP

<lang parigp>guess()=my(r=random(10)+1);while(input()!=r,); "Well guessed!";</lang>

Pascal

<lang pascal>Program GuessTheNumber(input, output);

var

``` number, guess: integer;
```

begin

``` randomize;
number := random(10) + 1;
writeln ('Im thinking of a number between 1 and 10, which you should guess.');
while guess <> number do
begin
write   ('Enter your new guess: ');
end;
writeln ('You made an excellent guess. Thank you and have a nice day.');
```

end. </lang>

Perl

<lang perl>my \$number = 1 + int rand 10; do { print "Guess a number between 1 and 10: " } until <> == \$number; print "You got it!\n";</lang>

Perl 6

<lang perl6>my \$number = (1..10).pick; repeat {} until prompt("Guess a number: ") == \$number; say "Guessed right!";</lang>

Phix

<lang Phix>integer secret = rand(10) puts(1,"Guess the number between 1 and 10: ") while 1 do

```   if prompt_number("",{1,10})=secret then exit end if
puts(1,"Your guess was wrong.\nTry again: ")
```

end while puts(1,"You got it!\n")</lang>

PHP

<lang php> <?php

session_start();

if(isset(\$_SESSION['number'])) {

```  \$number = \$_SESSION['number'];
```

} else {

```  \$_SESSION['number'] = rand(1,10);
```

}

if(isset(\$_POST["guess"])){ if(\$_POST["guess"]){ \$guess = htmlspecialchars(\$_POST['guess']);

echo \$guess . "
"; if (\$guess != \$number) { echo "Your guess is not correct"; } elseif(\$guess == \$number) { echo "You got the correct number!"; } } } ?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Guess A Number</title> </head>

<body> <form action="<?=\$_SERVER['PHP_SELF'] ?>" method="post" name="guess-a-number"> <label for="guess">Guess number:</label>
<input type="text" name="guess" /> <input name="number" type="hidden" value="<?= \$number ?>" /> <input name="submit" type="submit" /> </form> </body> </html> </lang>

PicoLisp

<lang PicoLisp>(de guessTheNumber ()

```  (let Number (rand 1 9)
(loop
(prin "Guess the number: ")
(prinl "Well guessed!") )
(prinl "Sorry, this was wrong") ) ) )</lang>
```

Plain TeX

This code should be compiled with etex features in console mode (for example "pdftex <name of the file>"): <lang tex>\newlinechar`\^^J \edef\tagetnumber{\number\numexpr1+\pdfuniformdeviate9}% \message{^^JI'm thinking of a number between 1 and 10, try to guess it!}% \newif\ifnotguessed \notguessedtrue \loop \message{^^J^^JYour try: }\read -1 to \useranswer \ifnum\useranswer=\tagetnumber\relax \message{You win!^^J}\notguessedfalse \else \message{No, it's another number, try again...}% \fi \ifnotguessed \repeat \bye</lang>

PowerShell

Provides a function that analyzes the provided number by its call. The second script block is important and needed inside the script so the function will be called. <lang PowerShell>Function GuessNumber(\$Guess) {

```   \$Number = Get-Random -min 1 -max 11
Write-Host "What number between 1 and 10 am I thinking of?"
Do
{
Write-Warning "Try again!"
\$Guess = Read-Host "What's the number?"
}
While (\$Number -ne \$Guess)
Write-Host "Well done! You successfully guessed the number \$Guess."
```

}</lang> <lang powershell>\$myNumber = Read-Host "What's the number?" GuessNumber \$myNumber</lang>

ProDOS

Uses math module: <lang ProDOS>:a editvar /modify /value=-random-= <10 editvar /newvar /value=-random- /title=a editvar /newvar /value=b /userinput=1 /title=Guess a number: if -b- /hasvalue=-a- printline You guessed correctly! else printline Your guess was wrong & goto :a</lang>

Prolog

Works with: SWI-Prolog version 6

<lang prolog>main :-

```   random_between(1, 10, N),
repeat,
prompt1('Guess the number: '),
writeln('Well guessed!'),
!.</lang>
```

Example:

<lang prolog>?- main. Guess the number: 1. Guess the number: 2. Guess the number: 3. Well guessed! true.</lang>

PureBasic

<lang PureBasic>If OpenConsole()

``` Define TheNumber=Random(9)+1

PrintN("I've picked a number from 1 to 10." + #CRLF\$)
Repeat
Print("Guess the number: ")
Until TheNumber=Val(Input())

PrintN("Well guessed!")

Print(#CRLF\$ + #CRLF\$ + "Press ENTER to exit"): Input()
CloseConsole()
```

EndIf</lang>

Python

<lang python>import random target, guess = random.randint(1, 10), 0 while target != guess:

```   guess = int(input("Guess a number that is between 1 and 10: "))
```

print("That's right!")</lang>

R

<lang R>f <- function() {

```   print("Guess a number between 1 and 10 until you get it right.")
n <- sample(10, 1)
print("Try again.")
}
print("You got it!")
```

}</lang>

Racket

<lang Racket>#lang racket (define (guess-number)

``` (define number (add1 (random 10)))
(let loop ()
(if (equal? guess number)
(display "Well guessed!\n")
(loop))))</lang>
```

RapidQ

<lang vb> RANDOMIZE number = rnd(10) + 1 Print "I selected a number between 1 and 10, try to find it:" + chr\$(10)

while Guess <> Number

```   input "Your guess: "; Guess
```

wend

print "You guessed right, well done !" input "Press enter to quit";a\$ </lang>

Rascal

<lang Rascal>import vis::Render; import vis::Figure; import util::Math;

public void Guess(){ random = arbInt(10); entered = ""; guess = false; figure = box(vcat([ text("Try to guess the number from 0 to 9."), textfield("Put your guess here", void(str s){guess = (toInt(s)==random); entered = s; }, fillColor("white")), text(str(){return guess ? "Correct answer!" : "This is false, the number is not <entered>.";}), button("Start over", void(){random = arbInt(10);}) ])); render(figure); }</lang>

Output:

Retro

<lang Retro>: checkGuess ( gn-gf || f )

``` over = [ drop 0 ] [ "Sorry, try again!\n" puts -1 ] if ;
```
think ( -n )
``` random abs 10 mod 1+ ;
```
guess ( - )
``` "I'm thinking of a number between 1 and 10.\n" puts
"Try to guess it!\n" puts
think [ getToken toNumber checkGuess ] while
"You got it!\n" puts ;
```

</lang>

REXX

version 1

(Note: most REXXes won't accept that first statement, the shebang/sha-bang/hashbang/pound-bang/hash-exclam/hash-pling.) <lang rexx>#!/usr/bin/rexx /*REXX program to play: Guess the number */

number = random(1,10) say "I have thought of a number. Try to guess it!"

guess=0 /* We don't want a valid guess, before we start */

do while guess \= number

``` pull guess
if guess \= number then
say "Sorry, the guess was wrong. Try again!"
/* endif - There is no endif in rexx. */
```

end

say "Well done! You guessed it!" </lang>

version 2

<lang rexx>/*REXX program interactively plays "guess my number" with a human. */ ?=random(1,10) /*generate a low random integer. */ say 'Try to guess my number between 1 ──► 10 (inclusive).' /*directive*/

```                      do j=1  until  g=?               /*keep at it ···*/
if j\==1  then say 'Try again.'  /*2nd-ary prompt*/
pull g                           /*obtain a guess*/
end   /*j*/
```

say 'Well guessed!' /*stick a fork in it, we're done.*/</lang>

Ring

<lang ring>while true see "Hey There,

============

I'm thinking of a number between 0 and 10, Can you guess it?? Guess :> " give x n = random(10) if x = n see "

```    ** Thats right You Are Genius :D **
```

" exit else see "Oops its not true, Try again please :)" + copy(nl,3) ok end </lang>

RPL

<lang UserRPL> DIR

``` INITIALIZE
<< { C G R } PURGE RAND 10 * 1 + IP 'R' STO GUESSING
>>
GUESSING
<< "Pick a number between 1 and 10." "" INPUT OBJ-> 'G' STO
IF
G R ==
THEN
CLLCD "You got it!" 1 DISP 7 FREEZE 0 WAIT CLLCD CONTINUE
ELSE
IF
G R <
THEN
CLLCD "Try a larger number." 1 DISP 7 FREEZE 0 WAIT GUESSING
ELSE
CLLCD "Try a smaller number." 1 DISP 7 FREEZE 0 WAIT GUESSING
END
END
>>
CONTINUE
<< "Do you want to continue? (0/1)" "" INPUT OBJ-> 'C' STO
IF
C 1 ==
THEN
INITIALIZE
ELSE
CLEAR
END
>>
```

END</lang>

Ruby

<lang ruby> n = rand(1..10) puts 'Guess the number: ' puts 'Wrong! Guess again: ' until gets.to_i == n puts 'Well guessed!' </lang>

Run BASIC

<lang Runbasic>while 1 choose = int(RND(0) * 9) + 1 while guess <> choose

```  print "Guess a number between 1 and 10: ";: input guess
if guess = choose THEN
print "You guessed!"
else
print "Sorry, try again"
end if
```

wend wend</lang>

Rust

<lang rust>extern crate rand;

fn main() {

```   println!("Type in an integer between 1 and 10 and press enter.");
```
```   let n = rand::random::<u32>() % 10 + 1;
loop {
let mut line = String::new();
let option: Result<u32,_> = line.trim().parse();
match option {
Ok(guess) => {
if guess < 1 || guess > 10 {
println!("Guess is out of bounds; try again.");
} else if guess == n {
println!("Well guessed!");
break;
} else {
println!("Wrong! Try again.");
}
},
Err(_) => println!("Invalid input; try again.")
}
}
```

}</lang>

Scala

<lang scala> val n = (math.random * 10 + 1).toInt print("Guess the number: ") while(readInt != n) print("Wrong! Guess again: ") println("Well guessed!") </lang>

Scheme

Works with: Chicken Scheme
Works with: Guile

<lang scheme>(define (guess)

``` (define number (random 11))
(display "Pick a number from 1 through 10.\n> ")
((= guess number) (display "Well guessed!\n"))
(display "Guess again.\n")))</lang>
```
Output:
```scheme> (guess)
Pick a number from 1 through 10.
1
Guess again.
2
Guess again.
3
Guess again.
4
Guess again.
5
Well guessed!```

Seed7

<lang seed7>\$ include "seed7_05.s7i";

const proc: main is func

``` local
var integer: number is 0;
var integer: guess is 0;
begin
number := rand(1, 10);
writeln("I'm thinking of a number between 1 and 10.");
writeln("Try to guess it!");
while guess <> number do
writeln("That's not my number.");
writeln("Try another guess!");
end while;
writeln("You have won!");
end func;</lang>
```

Self

Gives dialog boxes in GUI, uses stdout/in otherwise.

Well factored:

<lang self>(| parent* = traits clonable. copy = (resend.copy secretNumber: random integerBetween: 1 And: 10). secretNumber.

ask = ((userQuery askString: 'Guess the Number: ') asInteger). reportSuccess = (userQuery report: 'You got it!'). reportFailure = (userQuery report: 'Nope. Guess again.'). sayIntroduction = (userQuery report: 'Try to guess my secret number between 1 and 10.').

hasGuessed = ( [ask = secretNumber] onReturn: [|:r| r ifTrue: [reportSuccess] False: [reportFailure]] ). run = (sayIntroduction. [hasGuessed] whileFalse) |) copy run</lang>

Simple method:

<lang self>| n | userQuery report: 'Try to guess my secret number between 1 and 10.'. n: random integerBetween: 1 And: 10. [(userQuery askString: 'Guess the Number.') asInteger = n] whileFalse: [

```   userQuery report: 'Nope. Guess again.'].
```

userQuery report: 'You got it!'</lang>

Sidef

<lang ruby>var n = pick(1..10) print 'Guess the number: ' while (n != read(Number).int) {

```   print 'Wrong! Guess again: '
```

} say 'Well guessed!'</lang>

SNUSP

Works with: SNUSP Bloated

(random numbers are between 0 and 9; %assigns a random value between 0 and current cell value) Unoptimised.

```                        /++.#
\>.--.++<..+ +\
/>+++++++.>-.+/
/ \              />++++++>++\
< +              ?
< >              \ -<<++++++/
\$++++\ - +              !
/++++/   >              \++++++++++\
\+ %!/!\?/>>>,>>>>>>+++\/ !/?\<?\>>/
/++++++++++++++++/   > -  \\
\+++++++++\  /    /  - <
/+++++++++/          \ /
\+++++++++++\ /++++++++++>>/
/<<<<<</?\!/ !
< -   /-<<+++++++\
< >   ?
< >   \>+++++++>+/
< >   >
< >   .
< >   \-----.>++\
- >    /.+++.+++/
\ /    \!/?\<!/?\    \
\           /   \-/  \-/
\          <</?\!>/?\!</?\!<<</
\-/  >    \-/
+ -
< >
< +
\ /
```

Swift

<lang Swift>import Cocoa

var found = false let randomNum = Int(arc4random_uniform(10) + 1)

println("Guess a number between 1 and 10\n") while (!found) {

```   var fh = NSFileHandle.fileHandleWithStandardInput()

println("Enter a number: ")
let data = fh.availableData
var str = NSString(data: data, encoding: NSUTF8StringEncoding)
if (str?.integerValue == randomNum) {
found = true
println("Well guessed!")
}
```

}</lang>

Small Basic

<lang Small Basic>TextWindow.WriteLine("I just thought of a number between 1 and 10. What is it?") number = Math.GetRandomNumber(10) While guess <> number guess = TextWindow.ReadNumber() If guess <> number Then

``` TextWindow.WriteLine("Guess again!")
```

ElseIf guess = number Then

``` TextWindow.WriteLine("You win!")
```

EndIf EndWhile </lang>

Tcl

<lang tcl>set target [expr {int(rand()*10 + 1)}] puts "I have thought of a number." puts "Try to guess it!" while 1 {

```   puts -nonewline "Enter your guess: "
flush stdout
gets stdin guess
if {\$guess == \$target} {
```

break

```   }
puts "Your guess was wrong. Try again!"
```

} puts "Well done! You guessed it."</lang> Sample output:

```I have thought of a number.
Try to guess it!
Your guess was wrong. Try again!
Your guess was wrong. Try again!
Your guess was wrong. Try again!
Well done! You guessed it.
```

TUSCRIPT

<lang tuscript> \$\$ MODE TUSCRIPT PRINT "Find the luckynumber (7 tries)!" luckynumber=RANDOM_NUMBERS (1,10,1) COMPILE LOOP round=1,7 message=CONCAT ("[",round,"] Please insert a number") ASK \$message: n=""

```IF (n!='digits') THEN
PRINT "wrong insert: ",n," Please insert a digit"
ELSEIF (n>10.or.n<1) THEN
PRINT "wrong insert: ",n," Please insert a number between 1-10"
ELSEIF (n==#luckynumber) THEN
PRINT "BINGO"
EXIT
```

ENDIF IF (round==7) PRINT/ERROR "You've lost: luckynumber was: ",luckynumber ENDLOOP ENDCOMPILE </lang> Output:

```Find the luckynumber (7 tries)!
[1] Please insert a number >a
wrong insert: a Please insert a digit
[2] Please insert a number >10
[3] Please insert a number >1
[4] Please insert a number >2
[5] Please insert a number >9
[6] Please insert a number >8
BINGO
```

UNIX Shell

Works with: Bourne Shell

<lang bash>#!/bin/sh

1. Guess the number
2. This simplified program does not check the input is valid
1. Use awk(1) to get a random number. If awk(1) not found, exit now.

number=`awk 'BEGIN{print int(rand()*10+1)}'` || exit

echo 'I have thought of a number. Try to guess it!' echo 'Enter an integer from 1 to 10.' until read guess; [ "\$guess" -eq "\$number" ] do

``` echo 'Sorry, the guess was wrong! Try again!'
```

done echo 'Well done! You guessed it.'</lang>

An older version used `while [ "\$guess" -ne "\$number" ]`. With pdksh, input like '+' or '4x' would force the test to fail, end that while loop, and act like a correct guess. With `until [ "\$guess" -eq "\$number" ]`, input like '+' or '4x' now continues this until loop, and acts like a wrong guess. With Heirloom's Bourne Shell, '+' acts like '0' (always a wrong guess), and '4x' acts like '4' (perhaps correct).

C Shell

Library: jot

<lang csh>#!/bin/csh -f

1. Guess the number

@ number = `jot -r 1 1 10` || exit

echo 'I have thought of a number. Try to guess it!' echo 'Enter an integer from 1 to 10.' @ guess = "\$<" while ( \$guess != \$number ) echo 'Sorry, the guess was wrong! Try again!' @ guess = "\$<" end echo 'Well done! You guessed it.'</lang>

Vala

<lang vala>int main() { int x = Random.int_range(1, 10); stdout.printf("Make a guess (1-10): "); while(int.parse(stdin.read_line()) != x)

```               stdout.printf("Wrong! Try again: ");
```

stdout.printf("Got it!\n"); return 0; }</lang>

Ursa

Translation of: Python

<lang ursa># Simple number guessing game

decl ursa.util.random random decl int target guess

set target (int (+ 1 (random.getint 9))) out "Guess a number between 1 and 10." endl console while (not (= target guess))

```       set guess (in int console)
```

end while

out "That's right!" endl console</lang>

VBScript

<lang VBScript>randomize MyNum=Int(rnd*10)+1 Do x=x+1 YourGuess=InputBox("Enter A number from 1 to 10") If not Isnumeric(YourGuess) then msgbox YourGuess &" is not numeric. Try again." ElseIf CInt(YourGuess)>10 or CInt(YourGuess)<1 then msgbox YourGuess &" is not between 1 and 10. Try Again." ElseIf CInt(YourGuess)=CInt(MyNum) then MsgBox "Well Guessed!" wscript.quit ElseIf Cint(YourGuess)<>CInt(Mynum) then MsgBox "Nope. Try again." end If

if x > 20 then msgbox "I take pity on you" wscript.quit end if loop</lang>

Wortel

Translation of: JavaScript

<lang wortel>@let {

``` num 10Wc
guess 0
[
@while != guess num
:guess !prompt "Guess the number between 1 and 10 inclusive"
]
```

}</lang>

X86 Assembly

Works with: NASM version Linux

<lang asm>global _start

section .data

```   rand dd 0
guess dd 0
msg1 db "Guess my number (1-10)", 10
len1 equ \$ - msg1
msg2 db "Wrong, try again!", 10
len2 equ \$ - msg2
msg3 db "Well guessed!", 10
len3 equ \$ - msg3
```

section .text

```   _start:
; random number using time
mov eax, 13
mov ebx, rand
int 80h
mov eax, [ebx]
mov ebx, 10
xor edx, edx
div ebx
inc edx
mov [rand], edx

; print msg1
mov eax, 4
mov ebx, 1
mov ecx, msg1
mov edx, len1
int 80h

input:
; get input
mov eax, 3
xor ebx, ebx
mov ecx, msg1
mov edx, 1
int 80h
mov al, [ecx]
cmp al, 48
jl check
cmp al, 57
jg check
; if number
sub al, 48
xchg eax, [guess]
mov ebx, 10
mul ebx
jmp input

check:
; else check number
mov eax, 4
inc ebx
mov ecx, [guess]
cmp ecx, [rand]
je done
; if not equal
mov ecx, msg2
mov edx, len2
mov dword [guess], 0
int 80h
jmp input

done:
; well guessed
mov ecx, msg3
mov edx, len3
int 80h
; exit
mov eax, 1
xor    ebx, ebx
int 80h</lang>
```

XLISP

<lang lisp>(defun guessing-game ()

```   (defun prompt ()
(display "What is your guess? ")
(if (= guess n)
(display "Well guessed!")
(begin
(display "No...")
(newline)
(prompt))))
(define n (+ (random 10) 1))
(display "I have thought of a number between 1 and 10. Try to guess it!")
(newline)
(prompt))</lang>
```
Output:
```[1] (guessing-game)
I have thought of a number between 1 and 10. Try to guess it!
No...
No...
No...
No...
No...
No...
Well guessed!```

XPL0

<lang XPL0>code Ran=1, IntIn=10, Text=12; int N, G; [N:= Ran(10)+1; Text(0, "I'm thinking of a number between 1 and 10.^M^J"); loop [Text(0, "Can you guess it? ");

```       G:= IntIn(0);
if G=N then quit;
Text(0, "Nope, that's not it.^M^J");
];
```

Text(0, "Well guessed!^M^J"); ]</lang>

zkl

Strings are used to avoid dealing with error handling <lang zkl>r:=((0).random(10)+1).toString(); while(1){

```  n:=ask("Num between 1 & 10: ");
if(n==r){ println("Well guessed!"); break; }
println("Nope")
```

}</lang>