Loops/While: Difference between revisions
< Loops
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make "n 1024 |
make "n 1024 |
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while [:n > 0] [print :n make "n :n / 2] |
while [:n > 0] [print :n make "n :n / 2] |
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Via tail recursion: |
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to halves :n |
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if :n = 0 [stop] |
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print :n |
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halves :n / 2 |
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end |
Revision as of 16:31, 14 April 2008
![Task](http://static.miraheze.org/rosettacodewiki/thumb/b/ba/Rcode-button-task-crushed.png/64px-Rcode-button-task-crushed.png)
You are encouraged to solve this task according to the task description, using any language you may know.
Start a value at 1024. Loop while it is greater than 0. Print the value (with a newline) and divide it by two each time through the loop.
Ada
<ada> declare
I : Integer := 1024;
begin
while I > 0 loop Put_Line(Integer'Image(I)); I := I / 2; end loop;
end; </ada>
BASIC
<qbasic>i = 1024 while i > 0
print i i = i / 2
wend</qbasic>
C
int i = 1024; while(i > 0) { printf("%d\n", i); i /= 2; }
Forth
: halving ( n -- ) begin dup 0 > while cr dup . 2/ repeat drop ; 1024 halving
Java
<java>int i = 1024; while(i > 0){
System.out.println(i); i >>= 1; //also acceptable: i /= 2;
}</java>
JavaScript
var n = 1024; while (n>0) { print(n); n/=2; }
Logo
make "n 1024 while [:n > 0] [print :n make "n :n / 2]