Well the closest I got was $x = 8.36 but that only gave 4277126.8 So is
this question dependent upon the floating point arithmetic that is used?
graeme
JC Botha wrote:
It is possible, and "10.642868165785" is incorrect. The question says
"$x is a number between 1 and 10 and has 2 decimal places."
Try again, if more try then I will post the source code that generates
the asnwer?
On 4/20/05, M. Sokolewicz <[EMAIL PROTECTED]> wrote:
JC Botha wrote:
The following is a section of PHP code (see Apache.org and PHP.net).
function f($c) {
$c++;
if ($c % 2) { return f($c); }
return $c++;
}
function g($n) {
for ($i=1;$i<10;$i++) {
$n = f($n*$i);
}
return ($n);
}
print(g($x));
What is the smallest value that $x can have if 4277108 is outputted to
the screen after running this code?
$x is a number between 1 and 10 and has 2 decimal places.
it's not a jawbreaker, it's impossible IMO.
f() always returns the number if it's uneven, or if it's even, it
returns (n+1). So, it always returns uneven. which means the result of
g() can *never* be even.
[[side note:
unless "return $c++;" does first add 1 to it before returning, but I
think it doesn't, since it's a postincrement operator.
]]
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