COJ Forum

Problem 1023 Financial Management http://coj.uci.cu/24h/problem.xhtml?abb=1023 is giving runtime error.
Tried with an already AC code, its exactly the same code just a copy paste and got Runtime Error...

there are other problems like this one, all of them involving real numbers.

Scanners throws Runtime error when reading real numbers either with nextFloat, or nextDouble. also System.out.printf and DecimalFormat get wrong answer when printing a real number up to the n'th decimal place. previously accepted problems get runtime error for this reason even when the code is EXACT...

hi, i just recently tried the free problems template of the virtual contests and it worked like a charm, however there's something that would make them better: 1.if the creator deletes the contest before it starts delete it from the other contestants list. Reason: making mistakes on the setup is hel...

it would be great that when creating a virtual contest you, besides being able to select a real contest, could create your own contest with problems of the 24h archive. selecting certain topic/dificulty/etc related problems from the archive and making your own problemset to practice/train under the ...

try this:
Object[] array = (Object[]) arrayList.toArray(new Object[0]);

i.e for int's
Integer[] a = (Integer[]) arrayList.toArray(new Integer[0]);

you have to use class name instead of data type. works for custom classes too.

I don't know if you already know it, but Collections.sort() does the trick you can even use your own Comparator class to make the sort.