On Monday, 23 February 2015 at 22:58:22 UTC, Charles wrote:
I didn't beat your score, but I did it with ranges (full
character count was 174):
stdin.readln();
foreach(x; stdin.byLine)
writefln("%0.15f", map!(a =>
(a&1?-1:1)/(2.0*a+1))(iota(x.to!int)).sum);
I think if I didn't have to import so many things, I would
have done much better :)
-Steve
Yeah, imports were my issue too. Especially with readln,
because using that meant I needed std.conv. Why don't reals
initialize to zero? That'd save me 4 characters! :P
For real programming purposes, having floating types initialize
to an invalid state helps developers to catch logic errors that
allow a variable to go into a mathematical operation without
having been initialized.
