For loops inside nested if statements output error

[jinjin]

Hey everybody,

I'm back with another problem with loops and again its for Gr. 10 programming.

I was supposed to write a program that asks the user for a low integer, then a high integer, and then asks the user if they want to count from low to high (LH) or high to low (HL). Then, a loop was to be outputted based on their low/high integers and their loop setting.

Here's what I have:

code:

var high, low : int var ans : string put "Please enter a low integer." get low put "Please enter a high integer." get high put "Do you want to count from low to high (LH) or high to low (HL)?" get ans if ans = "LH" then     for c : low .. high         put c         if ans = "HL" then             for c2 : high .. low                 put c2             end for         end if     end for end if

The above program loops perfectly fine when someone inputs "LH" but if the user inputs "HL," it just ends abruptly. I have no idea why this occurs because both loops are written in the exact same way; the only difference is the variables 'c' and 'c2.' Any help is appreciated on fixing this. Thanks

Regards,
jinjin

[A.J]

it seems okay except for one tiny part:

Turing:

if ans = "LH" then     for c : low .. high         put c         if ans = "HL" then             for c2 : high .. low                 put c2             end for         end if     end for end if

try closing the first for loop
after outputting the answer

Turing:

for c : low .. high         put c end for

and instead of using another if statement, use an elsif statement:

Turing:

if ans = "LH" then     for c : low .. high        % ouput here     end for elsif ans="HL" then     for c : high..low         % other output here     end for end if

but you can't have a for loop with high..low (since high>low)
but there's a word you have to add before it to tell the for loop that the numbers are decreasing
see if this help

[jinjin]

A.J @ Sun Mar 16, 2008 4:26 pm wrote:

it seems okay except for one tiny part:

Turing:

if ans = "LH" then     for c : low .. high         put c         if ans = "HL" then             for c2 : high .. low                 put c2             end for         end if     end for end if

try closing the first for loop
after outputting the answer

Turing:

for c : low .. high         put c end for

and instead of using another if statement, use an elsif statement:

Turing:

if ans = "LH" then     for c : low .. high        % ouput here     end for elsif ans="HL" then     for c : high..low         % other output here     end for end if

but you can't have a for loop with high..low (since high>low)
but there's a word you have to add before it to tell the for loop that the numbers are decreasing
see if this help

Just what I needed - works perfect now Thanks A.J!