/prog/ - Which loop is faster?

Name: Anonymous 2012-01-16 8:59



for (I = 0; I < N; I++)

  for (J = 0; J < M; J++)

    update(Xs[I][J]);



for (I = 0; I < N; I++)

  for (J = 0; J < M; J++)

    update(Xs[J][I]);

???

Name: Anonymous 2012-01-16 13:39

>>89
Uhh... because one is divisible by zero and the other isn't?
Nope. Neither is divisible by zero.

$ cat test.java



class test {

    public static void main(String[] args) {

        int herp = 3, derp = 0;

        System.out.println(herp % derp);

    }

}

$ java test Exception in thread "main" java.lang.ArithmeticException: / by zero at test.main(test.java:4)

n mod 1 is always 0; n mod 0 is undefined, possibly resulting in a "Division by zero" error in computer programming languages

Which loop is faster?

1 Name: Anonymous 2012-01-16 8:59

93 Name: Anonymous 2012-01-16 13:39

Name: Anonymous 2012-01-16 8:59

Name: Anonymous 2012-01-16 13:39