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person

Sat Mar 12, 2005 7:40 pm


y doesnt this have an output??

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for x : 0 .. 20
    for decreasing y : 1 .. 20
        locate (x, y)
        put x
    end for
end for


y doesnt this output anything?[/quote]


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Cervantes

Sat Mar 12, 2005 7:48 pm



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It skips the second for loop because 1 is less than 20 and because it's decreasing.
In a regular for loop, the first number must be less than the second.  In a decreasing for loop, the first number must be greater than the second.  
You have a decreasing for loop in which the first number is less than the second.  Switch them.


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mike200015

Sat Mar 12, 2005 7:53 pm



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you also need to make the 1st for loop start at 1.. since u used locate (x,y) and the x is the for loop that starts at 0, and there is no row 0, so it needs to start at 1


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ssr

Sat Mar 12, 2005 8:37 pm



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if u want, use locatexy 
and yes, whenever turing sees a decreasing thats the other way, it will automatically stop/ 8)


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Token

Sat Mar 12, 2005 8:44 pm



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so the code would be 

for x : 1 .. 20 
    for decreasing y : 20 .. 1 
        locate (x, y) 
        put x 
    end for 
end for 

but if u wanted the numbers to start at 0, you would have to do this




for x : 1 .. 21
    for decreasing y : 20 .. 1
        locate (x, y)
        put x - 1
    end for
end for