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con.focus
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Posted: Sun Nov 28, 2004 11:41 am Post subject: Help reverse number |
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i need to be able to in out a number and get the code to reverse in and output it on to the screen code: | function reverseNumber (var n : int) : int
var inum1 : string
var inum2 : string := ""
put "type in a number: "..
get inum1
inum1 := intstr (n)
for decreasing i : length (inum1) .. 1
inum2 += inum1 (i)
end for
delay (500)
put " this is the reverse of your number"
put inum2
end reverseNumber
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the only problem im having ( i think is outputting it on the screen , can somone tell me wut im doing wrong |
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1337_brad
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Posted: Sun Nov 28, 2004 12:05 pm Post subject: Well.. |
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First of all, functions should not have put statements in them. A function is only for finding one value, (whether it be string, int, etc) but I think the code you want it:
code: |
function revfunct(num: string): string
var newnum: string:= ""
for decreasing i: length(num).. 1
newnum :=newnum + num(i)
end for
result newnum
end revfunct
var num1: string
put "enter a number: "..
get num1
put "The reversed number is: ", revfunct(num1) |
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con.focus
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Posted: Sun Nov 28, 2004 12:19 pm Post subject: (No subject) |
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the only problem wit that is i need to convert it using a int , or real number
not a string i know wut i had but i use intstr(n) to convert it |
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Cervantes
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Posted: Sun Nov 28, 2004 12:37 pm Post subject: (No subject) |
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Here's a nice simple way to do it, for an integer. You can change it to have some error checking and also do for real numbers as well.
code: |
function reverseNumber (n : int) : int
var numStr : string
var reversedNumStr : string := ""
numStr := intstr (n)
for decreasing r : length (numStr) .. 1
reversedNumStr += numStr (r)
end for
result strint (reversedNumStr)
end reverseNumber
var num : int
put "Enter an integer"
get num
put "The num backwards is ", reverseNumber (num)
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con.focus
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Posted: Sun Nov 28, 2004 12:58 pm Post subject: (No subject) |
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thx carvantes i didnt know you could do that i thought the fucntion would have to be with the reverse Number thx alot
btw wut are bits ne thing special like forum gold on different sites ??? |
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Cervantes
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Posted: Sun Nov 28, 2004 2:55 pm Post subject: (No subject) |
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Learn about bits Here |
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con.focus
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Posted: Sun Nov 28, 2004 5:18 pm Post subject: (No subject) |
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im trying to modify the code to do real numbers but i keep getting an eror
" Call to 'realstr' has too few parameters
code: |
function reverseNumber (rev : real) : real
var snum : string
var srevnum2 : string := ""
snum := realstr (rev)
for decreasing i : length (snum) .. 1
srevnum2 += snum (i)
end for
result strreal (srevnum2)
end reverseNumber
% had trouble with this because function dont let you
% use the "put" statment so i thought of by passing it
% by ending the function statement and putting the reverse number
% in the new statement
var rnum : real
put "Enter an number"
get rnum
put "The reverse of your number is: ", reverseNumber (rnum)
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wut am i doing wrong |
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Cervantes
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Posted: Sun Nov 28, 2004 5:29 pm Post subject: (No subject) |
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Just add a zero as your second parameter for the realstr function.
The Turing Reference wrote:
Syntax realstr ( r : real, width : int ) : string
Description
The realstr function is used to convert a real number to a string. For example, realstr (2.5e1, 4)="bb25" where b represents a blank. The string is an approximation to r, padded on the left with blanks as necessary to a length of width.
The width parameter must be non-negative. If the width parameter is not large enough to represent the value of r it is implicitly increased as needed. The displayed value is rounded to the nearest decimal equivalent with this accuracy. In the case of a tie, the display value is rounded to the next larger value.
So, putting a 0 for your width will ensure that your all of your real number is changed to a string, but that it is not padded (if it was, you wouldn't be able to convert it back to a real number later). |
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con.focus
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Posted: Sun Nov 28, 2004 5:49 pm Post subject: (No subject) |
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im reall sure where u mean to put the zero
code: | function reverseNumber (rev : real) : real
var snum : string
var srevnum2 : string := ""
snum := realstr (rev) <---- u mean in here or where point
for decreasing i : length (snum) .. 1
srevnum2 += snum (i)
end for
result strreal (srevnum2)
end reverseNumber
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Cervantes
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con.focus
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Posted: Sun Nov 28, 2004 6:22 pm Post subject: (No subject) |
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thx alot it not much but i giving u my bits |
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Cervantes
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Posted: Sun Nov 28, 2004 7:37 pm Post subject: (No subject) |
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Heh, I appreciate your gift, though, being a mod, my bits are locked at 1000. A warm thanks is all the gratification I need. |
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con.focus
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Posted: Sun Nov 28, 2004 9:17 pm Post subject: (No subject) |
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o lol thx though |
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