Re: Simple arithmetic?

Using bog standard LCM:

my @T = (
    [2147483648, 12, 4096],
    [3221225472, 5007, 4096],
    [4096, 4096, 4096],
    [8192, 8192, 4096],
    [15000, 8192, 4096],
    [17000, 8192, 4096],
    [17000, 10, 4096],
);

sub gcd { !$_[1] ? $_[0] : gcd($_[1], $_[0] % $_[1]) }
sub lcm { $_[0] * $_[1] / gcd($_[0], $_[1]) }

for (@T) {
    my ($S, $R, $P) = @$_;
    my $N = $S - $S % lcm($R, $P);
    print "@$_: $N\n";
}
[download]

Comment on Re: Simple arithmetic? Download Code

Replies are listed 'Best First'.
Re^2: Simple arithmetic? by BrowserUk (Patriarch) on Mar 08, 2015 at 12:29 UTC
Using bog standard LCM That's a very clean, and totally generic implementation. Thank you. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". I'm with torvalds on this In the absence of evidence, opinion is indistinguishable from prejudice. Agile (and TDD) debunked	[reply]

Replies are listed 'Best First'.

Re^2: Simple arithmetic?
by BrowserUk (Patriarch) on Mar 08, 2015 at 12:29 UTC

Using bog standard LCM

That's a very clean, and totally generic implementation. Thank you.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority". I'm with torvalds on this

In the absence of evidence, opinion is indistinguishable from prejudice. Agile (and TDD) debunked

[reply]